Last updated: 2026-10-30 · By Fix It or Replace editorial team
Whirlpool Dishwasher Not Draining? Filter, Disposal Knockout, Drain Hose and F9E1 Fixes — Costs and Repair vs Replace (2026)
Quick answer
First, check whether the water is actually a problem. Whirlpool says a small amount of water in the filter area is normal, about halfway up the filter area. It keeps the seals there from drying out and is replaced with fresh water on the next cycle. Water above the filter or up near the door opening is a real drain problem.
Whirlpool's checks, cheapest first:
- New install or new disposal? Make sure the knockout plug was removed from the disposal inlet. Whirlpool calls a forgotten knockout a common misdiagnosis; it blocks draining completely.
- Clear the disposal and sink drain. Run the disposal to clear food, and check the sink trap and tailpiece.
- Clean the filter and sump. Twist out the upper filter, lift out the lower one, rinse with warm water and a soft brush, and look in the sump for food, labels, seeds, toothpicks, or glass.
- Check the drain hose. No kinks, crushing, or sagging; routed on the correct side, inside the frame; a proper high loop under the counter or a working air gap, as local code requires.
- Clean the air gap (if you have one, on top of the sink) per its maker's instructions. Water spilling out of it means the blockage is downstream.
- Suds? Dish soap in a dishwasher makes suds that stop draining. Use only automatic-dishwasher detergent.
- Reset the control. Whirlpool says cut power for 30 seconds (unplug, or switch the breaker off and on), then run a drain.
If those don't fix it, the usual parts are a jammed or failed drain pump (a hum with no water moving), a clogged drain hose, a stuck check valve, or, less often, the control board (on some older designs, a timer or drain solenoid). F9E1 on the display, or the Clean light flashing 9 then 1, is Whirlpool's Long Drain code.
Repair or replace? Most drain problems cost nothing to fix. A drain pump is usually worth replacing on a dishwasher under about 8 years old. A control board on an older dishwasher is where replacing starts to win. See the calculator below.
Our partner pro call line is coming soon. Until then: if your appliance may still be under warranty, contact the manufacturer first. Otherwise, get two or three written quotes from local appliance repair companies, and ask about the diagnostic fee and the parts-and-labor warranty.
Verdict at a glance
| Your situation | What it usually means | Our verdict |
|---|---|---|
| Water only halfway up the filter area; or a new install / new disposal; or suds; or a clogged sink | Normal water, knockout plug, dish soap, or a household drain clog | ✅ Free fix. Remove the knockout, clear the sink, rewash with the right detergent |
| Water above the filter, F9E1, and the filter or hose was clogged | Filter, sump, hose, air gap restriction | ✅ Free to cheap. Clean, straighten, re-route the hose |
| Hums but won't drain with a clean filter and clear hose, or no pump sound at all | Jammed or failed drain pump; electrical or control fault | 🔧 Usually worth repairing under about 8 years old; ♻️ lean toward replacing if it's a board on an older machine |
Safety check before any DIY (30 seconds)
Stop and don't start the DIY steps below if any of these is true:
- Turn the power off at the breaker first. Whirlpool says don't rely on the control panel alone; confirm the display and lights are off. Shut the water supply at the under-sink valve (usually the hot line).
- You smell burning, see damaged wiring, or the breaker trips repeatedly. Whirlpool says stop and contact a qualified service technician.
- Your dishwasher is hard-wired and you're not comfortable removing panels. Whirlpool says schedule service instead.
- Don't pour drain-opening chemicals into the dishwasher. Whirlpool warns they can damage parts and create safety hazards.
- Watch for glass. Grinding noises can mean broken glass in the pump area. Wear gloves when you reach into the sump.
- The dishwasher is still under warranty (Whirlpool covers parts and labor for 1 year). Use Whirlpool service before you open panels. Installation and household-plumbing problems aren't covered, so check the knockout plug and sink drain first.
- Recall check: search your model on the CPSC recall site before paying for a repair.
If none of these apply, the free checks below are safe for most owners.
Fix order at a glance (cheapest first)
| Order | What to try | Cost | DIY tier |
|---|---|---|---|
| 1 | Check the water level: halfway up the filter area is normal | Free | Easy |
| 2 | New install or new disposal: remove the disposal knockout plug | Free | Easy |
| 3 | Run the disposal; check the sink trap and tailpiece | Free | Easy |
| 4 | Bail out water; clean the upper and lower filters; clear the sump | Free | Easy |
| 5 | Power-cycle 30 seconds; run a drain or short rinse | Free | Easy |
| 6 | Straighten the drain hose; add a high loop, or clean the air gap | Free | Easy |
| 7 | Rewash after suds (use automatic-dishwasher detergent only) | Free | Easy |
| 8 | Disconnect and flush the drain hose at the sink end | Free | Moderate |
| 9 | Clear debris from the drain pump impeller (where reachable) | Free | Moderate |
| 10 | Replace the drain hose, check valve, or filter | Part, or pro visit | Moderate |
| 11 | Replace the drain pump | Part, or pro visit | Advanced |
| 12 | Control board, wiring, door switch | Pro diagnosis first | Advanced |
DIY tiers: Easy (no panels off) · Moderate (a panel off, power off) · Advanced (wiring connectors or several parts) · Pro only (mains wiring, or still under warranty).
Which Whirlpool dishwasher do you have?
Find the model and serial number on the label on the edge of the inner door or the tub frame (open the door and look along the side or top). You need it to order the right pump or hose and to check warranty status.
| Type | Model prefix (examples) | Display | Filter | Notes |
|---|---|---|---|---|
| Top-control | Often WDT (check label) | Usually lights only (no numeric display) | Removable upper and lower filters on many models | Read codes from the flashing Clean light |
| Front-control | Often WDF (check label) | Some show an F#E# code | Removable filters on many models | |
| Older models | Varies | Lights | Some older designs use a different filter system; see your manual | Whirlpool notes some older designs use a drain solenoid or timer |
Prefixes are examples, not a full list. Your owner's manual (search your model on Whirlpool's site) shows the filter layout and drain-hose routing.
Five-minute checks before you call anyone
- Judge the water. About halfway up the filter area = normal (Whirlpool). Slightly above the filter = partial restriction (filter, sump, hose). Near the door opening = severe blockage or a pump that isn't running.
- Remove standing water. Towels down; bail with a cup into a bucket; use a turkey baster or hand pump for the sump. Pour it down a sink or toilet.
- Clean the filters. Remove the lower rack. Twist the upper filter counterclockwise and lift it out; lift out the lower filter (if present). Rinse under warm water with a soft brush (no abrasive pads). Shine a flashlight into the sump and remove debris. Reassemble: lower filter flat, upper filter turned clockwise until locked. A badly seated filter lets debris into the pump.
- Knockout plug and disposal. If the dishwasher drains into a disposal that was recently installed or replaced, make sure the knockout plug was removed. Run the disposal to clear it.
- Hose routing. Behind the toe panel and under the sink: no kinks, crushing, or sagging; on the correct side, inside the frame; clamped securely; a high loop fixed to the underside of the counter, or an air gap, as local code requires.
- Air gap. Remove the cap and clean out debris. If water spills out of the air gap into the sink, the clog is between the air gap and the drain.
- Suds. If you see foam, turn the dishwasher off and let the suds die down. Use only automatic-dishwasher detergent (dish soap makes suds).
- Reset. Unplug for 30 seconds (or breaker off 30 seconds if hard-wired), then run a short rinse and listen for the drain pump.
How to know it's fixed: after a short rinse, only the normal half-filter-level water remains, the pump sounds during drain, and F9E1 (or the flashing Clean light) doesn't return.
Whirlpool dishwasher codes linked to "not draining"
Whirlpool lists these on its US Product Help pages. Digital-display models show the code as F#E#. Lights-only models flash the Clean light in two groups: count the first group of flashes (the F number), a short pause of about 1–2 seconds, the second group (the E number), then a longer pause of about 5 seconds before it repeats. Example from Whirlpool: 7 flashes, pause, 1 flash = F7E1.
| Code | Whirlpool's meaning | What to do |
|---|---|---|
| F9E1 | Long Drain — Not Draining | Clean the filter; check the drain hose for kinks, pinches, or clogs from the back of the dishwasher to the sink; clear the disposal and remove the knockout (new installs); clear the air gap; power-cycle 30 seconds |
| F8E4 | Water detected in drip tray | Empty the drip tray; make sure the float switch is connected; check water connections for leaks |
| F7E2 | Wash motor error | Power-cycle; if it returns, schedule service |
| F6E1 | User interface error, main control | Power-cycle; if it returns, schedule service |
| H20 | Not detecting water | Make sure the water supply is on; check the supply hose for kinks |
Which part each code points at, and how hard the fix is:
| Code / symptom | Part most often involved | First fix (free) | If it comes back | DIY tier |
|---|---|---|---|---|
| F9E1, water above the filter | Filter, sump, drain hose, air gap, disposal | Clean filter; clear hose and disposal | Drain hose or check valve | Easy → Moderate |
| F9E1, humming with no water moving | Drain pump impeller jammed | Clear debris from the sump and impeller | Drain pump | Moderate → Advanced |
| No pump sound during drain | Drain pump, wiring, door switch, control | Power-cycle 30 seconds | Pump or control diagnosis | Advanced |
| Water backs up from the air gap | Hose from air gap to drain; sink plumbing | Clear that hose and the sink drain | Plumber | Moderate |
| F6E1 | Main control / user interface | Power-cycle | Control board | Advanced |
| F7E2 | Wash motor | Power-cycle | Pump and motor assembly | Advanced |
Code meanings, the flash-counting method, and the troubleshooting snapshot from Whirlpool's US Product Help pages "Dishwasher Error Codes - Reading", "F9E1 - Dishwasher", and "Dishwasher Not Draining" (sources 1–4), checked directly 2026-10-30. The open ApplianceDB sample (source 9), which maps manufacturer codes to a component, a ranked fix, and a DIY difficulty, has no Whirlpool dishwasher entries, so the code→part table above combines Whirlpool's own "symptom → potential cause" snapshot with our own mapping to parts. Codes vary by model; your owner's manual has the final list.
Diagnose by symptom → likely part
Before you touch parts: Switch the breaker off (Whirlpool: don't rely on the control panel). Shut off the water. Bail out the tub. Keep towels and a shallow tray ready when you disconnect hoses.
1. Water slightly above the filter; drains slowly
Likely causes: a clogged filter or sump, or a partial restriction in the drain hose. Whirlpool says many "clogged dishwasher" complaints come from neglected filters or food debris in the sump.
Signs: cloudy water above the filter; slow drain at the end of the cycle; residue on dishes.
DIY difficulty: Easy.
| Part | What it does | DIY difficulty |
|---|---|---|
| Upper / lower filter | Catches food before it reaches the pump | Easy |
2. Water near the door; nothing drains
Likely causes: a severe blockage (knockout plug left in, clogged disposal, crushed or clogged hose), or a drain pump that isn't running.
Signs: full tub; no change after a reset; F9E1.
DIY difficulty: Moderate (disconnect and flush the hose at the sink end; flush with warm water or a garden hose; use a flexible plastic line or dishwasher-safe brush for stubborn clogs, never sharp tools).
| Part | What it does | DIY difficulty |
|---|---|---|
| Drain hose | Carries water to the sink drain, air gap, or disposal | Moderate |
| Check valve | Stops dirty water flowing back into the tub | Moderate |
3. Steady hum (or grinding) but no water moves
Likely causes: a jammed drain pump impeller (Whirlpool: a steady hum with no water movement), or hard debris such as glass in the pump area (grinding).
Signs: humming during drain; grinding; F9E1 after the filter and hose are clear.
DIY difficulty: Moderate to clear debris; Advanced to replace the pump (lower panel off, hoses and wiring connectors).
Call a pro if: the impeller turns freely and the hose is clear, but the pump still doesn't move water.
| Part | What it does | DIY difficulty |
|---|---|---|
| Drain pump | Pushes water out through the drain hose | Advanced |
4. No pump sound at all during drain
Likely causes: an electrical or control problem. Whirlpool's snapshot lists the door switch, wiring, pump voltage, and the timer / control board. Less commonly, a drain solenoid on some older designs.
Signs: the cycle pauses without the drain pump starting; F6E1 on some models.
DIY difficulty: Advanced; diagnose first before buying a board.
| Part | What it does | DIY difficulty |
|---|---|---|
| Electronic control board | Runs the cycle and powers the pump | Advanced; diagnose first |
| Door latch / switch | Tells the control the door is closed | Moderate |
Not sure if it's the hose, the pump, or the control? A technician can check pump voltage, the impeller, and the drain path in one visit; that's the visit that decides repair vs. replace.
Partner pro call line coming soon. See “who services” below for your options.
Independent partner service, not Whirlpool. We may be paid when you call.
Prevent it next time
- Scrape plates before loading (Whirlpool) so large food doesn't reach the filter.
- Clean the filter regularly per your manual, more often if you run it a lot.
- Keep the high loop after any under-sink work or disposal replacement.
- Clean the air gap cap now and then.
- Run hot water at the sink before starting a cycle (Whirlpool) to help with grease.
- Use only automatic-dishwasher detergent. Whirlpool also suggests cleaning the dishwasher about every 30 days.
Related guides
- Samsung dishwasher not draining
- LG dishwasher not cleaning
- Whirlpool washer won't drain
- Samsung washer not draining
What Whirlpool's warranty covers on a dishwasher
Per Whirlpool's US Major Appliance Limited Warranty (W11349438A, see Sources), plus older Whirlpool dishwasher warranty sheets:
| Period (from original purchase) | What's covered | Who pays labor |
|---|---|---|
| Year 1 | Factory-specified replacement parts and labor for defects in materials or workmanship (or, at Whirlpool's option, a replacement product) | Whirlpool |
| After year 1 | Only the components your model's warranty sheet lists. Older Whirlpool dishwasher sheets added parts-only coverage for the wash module (year 2) and electronic controls and nylon-coated racks (years 2–5), and a 20-year tub and inner door warranty on select models | You pay labor on parts-only coverage |
What this means for a dishwasher that won't drain: in year 1, a failed drain pump or board is covered. But Whirlpool doesn't cover repairs to correct installation not done per the instructions or plumbing codes, or repairs to household plumbing, so a knockout plug left in, a missing high loop, or a clogged sink drain is on you. It also excludes in-home instruction (for example, cleaning the filter) and consumables. Service must be done by a Whirlpool-authorized servicer, and you need proof of purchase.
→ Whirlpool Product Help: schedule service · Whirlpool Customer eXperience Center 1-866-698-2538 (from the warranty and Whirlpool's support pages)
Before you pay for any repair: a 4-point check
- Warranty: year 1 parts and labor; check your sheet for any parts-only coverage; plus retailer or credit-card extended protection.
- Recalls: search your model at the U.S. Consumer Product Safety Commission's recall site: cpsc.gov/Recalls. A recall repair is free.
- Free fixes done: normal water level, knockout plug, disposal, filter and sump, hose routing and high loop, air gap, suds, 30-second reset.
- Written quote: ask for part, labor, and trip fee as separate lines, and whether the tech checked the sink drain first.
What it costs: repair parts and pro service (2026)
How we price this table: DIY part prices are Whirlpool-family OEM part numbers listed on Sears PartsDirect public search pages (S-list under Sources), USD before tax and shipping; ranges span several part numbers because the right part depends on your model number. Pro costs tagged [GUIDE] come from two US cost guides (Fixr = G1, HomeGuide = G2): national averages for dishwashers in general unless noted, not Whirlpool-specific quotes. "Varies — get a quote" means neither guide itemizes that repair, so we don't show a number.
| Repair | Part cost (DIY) | Typical pro cost (parts + labor) | Notes |
|---|---|---|---|
| Knockout plug, disposal, filter clean, hose routing, high loop, reset | $0 | — | Do these first |
| Install an air gap | Air gap kit WP300096 $39.05 [S6] | [GUIDE] air gap installation $80–$150 (G2) | Only where your local code requires one |
| Filter | $16.45–$99.77 (W11568785 to W11460958) [S2] | [GUIDE] replace filter $90–$175 (G2); filter $50–$125 (G1) | If cracked or warped |
| Drain hose | $16.64–$103.56 (8269144A to W10181634) [S3] | [GUIDE] drain hose $80–$180 (G2); $50–$100 (G1) | |
| Check valve | $14.96–$45.94 (W10567620, 675238, WP8268375) [S4] | Varies — get a quote (not itemized in G1/G2) | Cheap part; labor is the cost |
| Drain pump | $50.20–$158.76 (WPW10531320 to W11677711) [S1] | [GUIDE] drain pump replacement $100–$400, part alone $20–$100 (G2, all brands); pump replacement $150–$400, pump repair $100–$250 (G1) | Most common real part failure |
| Door latch | $20.75–$141.03 (WPW10653840 to WPW10404409) [S7] | Varies — get a quote (not itemized in G1/G2) | If the pump never starts |
| Electronic control board | $84.65–$213.96 (W11413274 to W10906431) [S5] | [GUIDE] control board $200–$600 (G2); control panel replacement $200–$500 (G1) | Diagnose first |
| Plumber: clogged sink drain or disposal | — | Varies — get a quote (not itemized in the dishwasher guides) | If water backs up from the air gap |
| Whirlpool dishwasher repair (brand range) | — | [GUIDE] Whirlpool $50–$400 (G1, brand-specific, all repair types) | |
| Service call / diagnostic fee | — | [GUIDE] $50–$75 diagnostic, labor $50–$100 per hour (G1); $70–$130 minimum service fee incl. first hour, then $50–$125 per hour (G2) | |
| New comparable dishwasher | — | [GUIDE] $400–$700 unit + $100–$300 installation (G1); $600–$1,700 replacement (G2); all brands | Add haul-away if not included |
Part prices checked 2026-10-30 on Sears PartsDirect public search pages (S1–S7). Pro-cost cells tagged [GUIDE] from G1 (Fixr) and G2 (HomeGuide), re-read 2026-10-30; [GUIDE] figures are national averages, not Whirlpool-specific quotes except where marked. Prices change; confirm with your model number.
Tip: tell the tech whether the pump hums, grinds, or is silent, and whether the sink drains normally. It points straight at the pump, the hose, or the house plumbing.
Repair vs. replace calculator
1. What's the all-in repair cost? → R = trip/diagnostic fee + part + labor + tax, minus anything Whirlpool's warranty (or a recall) covers
2. What does a comparable new dishwasher cost, all-in? → N = unit + installation + haul-away (+ new hoses or install kit)
3. How old is your dishwasher, and how long should it last? → Age and Life (use about 11 years, near the middle of HomeGuide's 8–15-year range, if you don't know)
4. How much have you spent on repairs in the last 2 years? → Past
Step A — Cost ratio: R ÷ N
Step B — Life used: Age ÷ Life
Step C — Repeat-repair check: (R + Past) ÷ N
| Life used under 50% | Life used over 50% | |
|---|---|---|
| Repair under 50% of new | ✅ Repair | 🤔 Repair is usually fine. Check for other wear |
| Repair over 50% of new | 🤔 Get a second quote first | ❌ Replace |
Repeat-repair rule: if Step C is over 50%, treat it like the bottom-right box: money keeps going into the same machine. And if the part is no longer available for your model, that decides it: replace.
Worked example 1 (illustrative numbers): A new Whirlpool dishwasher, installed the same week as a new disposal, shows F9E1 on its first cycle. The disposal knockout plug was never removed. R = $0.
→ Not a repair.
Worked example 2 (illustrative numbers): A 5-year-old Whirlpool dishwasher hums but won't drain with a clean filter and a clear sink. A tech replaces the drain pump: R = $280; N = $850; no other repairs.
280 ÷ 850 = 33%; life used 5 ÷ 11 = 45%; repeat check 33% → Repair.
Worked example 3 (illustrative numbers): A 10-year-old Whirlpool dishwasher needs a control board. It had a pump replaced last year for $250. R = $400; N = $850.
400 ÷ 850 = 47%; life used 10 ÷ 11 = 91%; repeat check (400 + 250) ÷ 850 = 76% → Replace.
Tips toward replacing: a board on an older dishwasher, a second big repair in about 2 years, a rusted tub or racks, or a leak under the tub.
Tips toward repairing: it's a pump, hose, check valve, filter, or latch; the dishwasher is under about 8 years old; or the real fix was the sink drain.
Why 50%? It's the common rule of thumb, and the one we use. Some technician checklists draw the line a little higher, at about 60% of a new dishwasher's price, so treat a repair that costs 50–60% of new as a second-quote zone, not an automatic replace. The older the dishwasher, the lower the line should go: once it has used more than half its expected life, the same repair buys fewer years.
Who services Whirlpool dishwashers near you
1. Whirlpool (warranty or authorized service). In year 1, start with Whirlpool. Warranty work must be done by a Whirlpool-authorized servicer.
→ Whirlpool Product Help: schedule service · 1-866-698-2538
2. A partner appliance pro (out of warranty).
Our call line connects you with an independent appliance repair provider in your area. Tell them whether the pump hums, grinds, or is silent, whether you see F9E1, whether the sink drains, and your model number; it speeds up the diagnosis.
Our partner pro call line is coming soon. Until then: if your appliance may still be under warranty, contact the manufacturer first. Otherwise, get two or three written quotes from local appliance repair companies, and ask about the diagnostic fee and the parts-and-labor warranty.
3. A plumber. If water backs up from the air gap or the sink itself drains slowly, the clog is in the house plumbing, not the dishwasher.
4. DIY with the right part. Filters, hoses, check valves, and many drain pumps are common DIY jobs. Order by your exact model number.
Questions to ask any technician:
- Did you check the filter, sump, knockout plug, hose routing, and air gap first?
- Is it the pump, the hose, or the control? How did you confirm it?
- Is any of this covered by my warranty sheet?
- Can you split the quote into part, labor, and trip fee?
Optional: is an appliance warranty worth it?
A home warranty (service contract) can cover repairs for a yearly fee plus a per-visit service fee. Read the exclusions carefully: many plans exclude clogs and installation problems. A dishwasher that's already broken is usually not covered. Whirlpool also sells extended service plans on new appliances.
FAQ
Is it normal to have water in the bottom of my Whirlpool dishwasher?
A little, yes. Whirlpool says water about halfway up the filter area is normal; it keeps the seals from drying out and is replaced on the next cycle. Water above the filter or near the door is a drain problem.
What does F9E1 mean on a Whirlpool dishwasher?
Long Drain — not draining. Whirlpool's steps: clean the filter, check the drain hose for kinks or clogs, clear the disposal and remove the knockout plug on new installs, clear the air gap, and power-cycle for 30 seconds.
How do I read the flashing Clean light on my Whirlpool dishwasher?
Count the first group of flashes (F number), wait for a short pause, count the second group (E number), then a longer pause before it repeats. For example, 9 flashes then 1 flash is F9E1.
How do I reset my Whirlpool dishwasher?
Cut power for 30 seconds: unplug it, or switch off the breaker if it's hard-wired, then turn it back on.
Why won't my new Whirlpool dishwasher drain?
Most often the disposal knockout plug wasn't removed, or the drain hose is kinked or missing a high loop or air gap. Whirlpool says check both before anything else.
My Whirlpool dishwasher hums but won't drain. What's wrong?
Whirlpool says a steady hum with no water moving points to a jammed drain pump impeller or an obstruction in the pump. Check the sump for debris (including glass); if it's clear, the pump may need replacing.
Can dish soap stop a dishwasher from draining?
Yes. Whirlpool says dish soap makes suds that can push water out and cause poor draining and washing. Let the suds die down and use only automatic-dishwasher detergent.
Is it worth fixing a Whirlpool dishwasher that won't drain?
Usually. Most causes are free to fix, and a drain pump is a common, moderate repair. A control board on an older dishwasher leans toward replacing. Use the calculator above.
About the author
Fix It or Replace editorial team — We research appliance repairs using manufacturer documentation, parts-supplier data, and current US cost guides, and we cite every source below. We are not appliance technicians; for anything involving wiring or household plumbing, call a qualified pro.
Last updated: 2026-10-30.
Sources
- Whirlpool Product Help (US): "Dishwasher Not Draining" (causes: filter, sump debris, hose, disposal or sink connection, jammed pump; less commonly timer, drain solenoid on older designs, control board; how the drain works; diagnostic clues: water above filter, water near door, hum, grinding, no pump; breaker off and water off, don't rely on the control panel; standing-water removal; no drain chemicals; upper filter counterclockwise, lower filter, soft brush, sump inspection, reassembly clockwise; high loop or air gap; knockout plug; flush hose, flexible plastic line, no sharp tools; sink tailpiece and trap; water from the air gap means downstream blockage; prevention; troubleshooting snapshot incl. door switch, wiring, pump voltage, timer/control board). https://producthelp.whirlpool.com/Dishwashers/Product_Info/Dishwasher_Product_Assistance/Dishwasher_Not_Draining (accessed 2026-10-30)
- Whirlpool Product Help (US): "Newly Installed Dishwasher Not Draining" (knockout plug is a common misdiagnosis; clogged disposal; high loop or air gap as required by local codes; hose not pinched, crushed, or sharply bent; securely clamped). https://producthelp.whirlpool.com/Dishwashers/Product_Info/Dishwasher_Product_Assistance/Newly_Installed_Dishwasher_Not_Draining (accessed 2026-10-30)
- Whirlpool Product Help (US): "Not Draining - Water Remain at End of Cycle - Dishwasher" (knockout plug; normal standing water about halfway up the filter area keeps seals from drying; obstructions in drain or disposer; air gap; dish soap suds; clean about every 30 days). https://producthelp.whirlpool.com/Dishwashers/Dishwasher/Cycle_Concerns/Not_Draining%2F%2FWater_Remains/Not_Draining_-_Water_Remain_at_End_of_Cycle_-_Dishwasher (accessed 2026-10-30)
- Whirlpool Product Help (US): "F9E1 - Dishwasher" (Long Drain; filter, drain hose, disposer and knockout, air gap; power-cycle 30 seconds; hose routed on the correct side, inside the frame; suds) and "Dishwasher Error Codes - Reading" (F#E# on digital displays; Clean light two-part flash sequence with 1–2 second and about 5 second pauses, example F7-E1; F8E4 drip tray; F7E2 wash motor; F9E1 long drain; F6E1 user interface / main control; H20 not detecting water). https://producthelp.whirlpool.com/Dishwashers/Dishwasher/Error_Code_or_Flashing_Lights/Error_Codes/F9E1_-_Dishwasher · https://producthelp.whirlpool.com/Dishwashers/Product_Info/Dishwasher_Product_Assistance/Dishwasher_Error_Codes_-_Reading (accessed 2026-10-30)
- Whirlpool US "Major Appliance Limited Warranty" W11349438A (one year parts and labor; exclusions incl. in-home instruction, installation not per instructions or plumbing codes, repair of household plumbing, consumables; service by authorized Whirlpool servicers; Customer eXperience Center 1-866-698-2538). https://www.whirlpool.com/content/dam/global/documents/202109/warranty-w11349438-reva.pdf (accessed 2026-10-30)
- Whirlpool "Dishwasher Warranty" (older model sheet: one-year full warranty; second-year parts-only wash module; second-through-fifth-year parts-only electronic control system and nylon-coated dishracks; twenty-year DuraPerm tub and inner door on select models; no labor during limited periods). Retailer-hosted copy: https://assets.ajmadison.com/ajmadison/itemdocs/8535541-W.pdf (accessed 2026-10-30)
- U.S. Consumer Product Safety Commission: recalls search. https://www.cpsc.gov/Recalls (accessed 2026-10-30)
- Federal Trade Commission: endorsement and affiliate disclosure guidance. https://www.ftc.gov/business-guidance/resources/ftcs-endorsement-guides-what-people-are-asking
- ApplianceDB free developer sample (checked for Whirlpool US dishwasher codes; none in the sample, so not used for this page's tables). Data under the Open Database License (ODbL) v1.0. https://github.com/ApplianceDB/ApplianceDB-public (accessed 2026-10-30)
- Part prices: Sears PartsDirect public search pages, see S-list below (accessed 2026-10-30). Repair cost guides: Fixr (G1) and HomeGuide (G2), see list below (accessed 2026-10-30).
Part price sources (Sears PartsDirect public search results, USD, accessed 2026-10-30; Whirlpool-family part numbers only, other brands in the same results excluded; prices change, confirm with your model number):
- S1. Search "whirlpool dishwasher drain pump": WPW10531320 $50.20, WPW10348269 $52.02, W10876537 $62.34, W11677711 $158.76 (pump housing WPW10179455 $98.99 and GE/LG pumps excluded). https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20drain%20pump
- S2. Search "whirlpool dishwasher filter": W11568785 $16.45, WPW10463906 $20.10, W10717669 $39.94, 8268391 fine filter $42.13, W10872845 filter cup $42.56, WP8579253 $77.91, W11084156 $95.09, W10181658 micro filter $97.88, W11643383 $99.41, W11460958 $99.77. https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20filter
- S3. Search "whirlpool dishwasher drain hose": 8269144A $16.64, W11381654 $25.78, 3385556 $27.13, W11551233 $36.13, WPW10545278 $44.13, W11614117 $47.50, W10712310 12-ft $53.59, WPW10567628 $68.62, WP3374077 $69.27, WPW10195751 $69.76, WPW10181619 $72.19, W10181634 $103.56 (GE and other brands excluded). https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20drain%20hose
- S4. Search "whirlpool dishwasher check valve": W10567620 $14.96, 675238 $40.13, WP8268375 sump check valve $45.94 (other brands excluded). https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20check%20valve
- S5. Search "whirlpool dishwasher control board": W11413274 $84.65, W10804121 $119.57, W10751502 $120.08, W11035586 $157.65, WPW10084141 $161.01, W10866118 $165.86, W10854215 $173.76, W10906422 $182.57, W11410062 $189.71, W10906426 $199.35, W11462458 $201.11, W11410066 $201.27, W11087226 $204.22, WPW10285179 $205.67, W10479764 $208.95, W10906431 $213.96 (user-interface housing excluded). https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20control%20board
- S6. Search "whirlpool dishwasher air gap": air gap kit WP300096 $39.05. https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20air%20gap
- S7. Search "whirlpool dishwasher door latch": WPW10653840 $20.75, W10619006 latch and strike $34.53, WP3380854 $46.42, WPW10274884 $62.88, WPW10404412 $74.00, WPW10404409 $141.03 (handles, strikes, dispenser parts excluded). https://www.searspartsdirect.com/search?q=whirlpool%20dishwasher%20door%20latch
Pro-cost guide sources [GUIDE] (US national averages, parts + labor, not brand-specific quotes unless noted; the guide pages carry 2023–2025 dates, so local quotes may differ):
- G1. Fixr, "Dishwasher repair cost" (updated January 31, 2025): pump repair $100–$250; pump replacement $150–$400; drain hose $50–$100; filter $50–$125; control panel replacement $200–$500; Whirlpool brand repairs $50–$400; diagnostic fee $50–$75; labor $50–$100 per hour; new dishwasher $400–$700 plus $100–$300 installation. https://www.fixr.com/costs/dishwasher-repair (accessed 2026-10-30)
- G2. HomeGuide, "Dishwasher repair cost" (byline December 22, 2023): average repair $100–$300; minimum service fee $70–$130 including the first hour, then $50–$125 per hour; drain pump replacement $100–$400 (part $20–$100); control board $200–$600; air gap installation $80–$150; replace filter $90–$175; drain hose $80–$180; dishwashers last 8–15 years; replacement $600–$1,700. https://homeguide.com/costs/dishwasher-repair-cost (accessed 2026-10-30)
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