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Quick answer
First record the exact model and displayed fault, then separate a visible drain-path blockage from a jammed pump or installation fault. Fisher & Paykel manuals commonly direct users to check a kinked or blocked drain hose, a blocked drain connection, the filter and—where the exact manual permits—accessible sump/pump debris after disconnecting power and water. One opened Fisher & Paykel family guide labels A20 as a drain fault; another older family guide labels E4 as a drain fault, so codes must not be transferred between models. Stop for standing water near electrics, flooding, glass/sharp fragments, repeated fault codes or a pump that remains jammed, and arrange authorised service.
Work through in order
Diagnostic checks
Use only checks that match the exact appliance or system and its official guide.
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Check 1
Turn the dishwasher off without starting another cycle and record the complete model, drawer/side if applicable, displayed code, whether water remains in the tub, whether the pump is silent/humming, and whether there is water outside the appliance.
Expected result: The tub is full, partly drained, empty but coded, leaking/flooding, or the exact code is absent/unknown.
Next step: Follow the matching branch below and locate the exact Fisher & Paykel manual before using a code-specific sequence.
Why this matters
Why: These are different branches. A drain code or standing water does not identify a pump failure, and a leak/flood condition takes priority over routine filter cleaning.
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Check 2
Before touching the filter, hose or pump area, disconnect the dishwasher from power, turn off the water supply, and wait for hot water/parts to cool as the exact manual instructs. Keep hands out of standing water near electrical equipment.
Expected result: The appliance is safely isolated, cannot be isolated from a dry safe location, or there is active flooding/water near electrics.
Next step: If isolation is unsafe or flooding is active, leave the area as needed and contact qualified service/emergency help. Otherwise continue only with the model-documented external maintenance.
Why this matters
Why: Fisher & Paykel maintenance guidance requires power/water isolation; unsafe isolation or flooding is a service/emergency boundary.
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Check 3
With the appliance isolated and only if the exact manual permits, remove and rinse the drain filter/filter plate and look for obvious food debris in the accessible sump/pump-cover area. Use gloves and avoid reaching into debris that may contain glass or sharp fragments; do not force a cover.
Expected result: The filter/plate is blocked, food or a sharp fragment is visible, the cover is jammed, or the accessible area is clear.
Next step: Clean and refit only the user-maintainable parts described by the exact manual. Stop and call authorised service for a jammed pump/cover, glass, damaged part or no improvement.
Why this matters
Why: Fisher & Paykel identifies blocked filters and pump obstruction as possible drainage causes, but a jammed cover or sharp fragment raises injury and service risk.
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Check 4
From outside the cabinet, inspect the visible drain hose and sink/waste connection for a kink, crush, blockage, disconnection or incorrect installation. Do not pull the dishwasher out or alter plumbing unless the installation manual and a qualified installer support that work.
Expected result: The hose is kinked/blocked/disconnected, the drain connection is obstructed, installation is uncertain, or the visible path appears normal.
Next step: Correct only an obvious safe hose-position issue. For an inaccessible connection, plumbing alteration, or persistent error, arrange authorised service/qualified plumbing help.
Why this matters
Why: Fisher & Paykel guides link drain faults to hose/connection restrictions and installation. A normal visible path does not prove the pump or control system is sound.
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Check 5
Compare the displayed code only with the exact model’s Fisher & Paykel manual. Record the manual page and whether it identifies a drain hose, connection, sensor, pump or flood condition; do not copy a code meaning from another family.
Expected result: The exact manual matches A20, E4 or another drain/flood code, or the code/family cannot be matched.
Next step: Follow one model-matched user step if documented. If the code returns, is unmatched or indicates flooding/pump service, isolate water/power and contact Customer Care.
Why this matters
Why: The opened manuals show family differences: A20 is a drain fault in newer DW60 guides, while E4 is a drain fault in an older DW60CE/CC guide. Similar codes are not universal.
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Check 6
Keep the dishwasher off for active flooding, water near electrics, a jammed pump, visible glass/sharp damage, repeated drain codes, a damaged hose/connection or drainage that remains after the model-documented external checks.
Expected result: The fault persists, water cannot be removed safely, or the appliance cannot be restored without cabinet/pump/electrical access.
Next step: Arrange Fisher & Paykel authorised service; provide the model, code, water level, hose/filter observations and photos from a safe dry position.
Why this matters
Why: These conditions exceed safe user maintenance. Fisher & Paykel directs jammed pumps, flood faults and persistent faults to Customer Care or authorised service.
Use your observations
Decision map
Find the observation that best matches what you see, then follow the next safe action.
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PATH 01Next step
What you see
Water remains inside after the wash and there is no active flood near electrical equipment.
Do this next
Isolate power/water, check the filter and visible hose/connection per the exact manual, and call service if the pump is jammed or water remains.
Why this path and its safety boundary
Why it matters: Fisher & Paykel lists blocked drain connection/hose and filters as user-checkable possibilities, with a jammed pump requiring service.
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PATH 02Next step
What you see
The visible drain hose is kinked, crushed, disconnected or the drain connection is blocked/incorrectly installed.
Do this next
Correct only an obvious external hose position issue. Use qualified service/plumbing help for inaccessible or altered connections, then retest only as the exact manual allows.
Why this path and its safety boundary
Why it matters: This matches the installation/drain-path causes documented in Fisher & Paykel guides; it does not prove an internal pump fault.
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PATH 03Next step
What you see
The filter/plate is blocked or the exact manual identifies visible food/debris in the accessible sump/pump path.
Do this next
Clean and refit the permitted parts with power/water isolated; stop for glass, a forced cover or persistent blockage and contact authorised service.
Why this path and its safety boundary
Why it matters: A user-maintainable obstruction may explain the drainage error, but sharp fragments or a jammed pump create injury/service risk.
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PATH 04Next step
What you see
The dishwasher shows A20, E4 or another code but the exact model/family manual is not confirmed.
Do this next
Record model/code and use the matching manual or Customer Care; do not transfer the code meaning or part diagnosis from another model.
Why this path and its safety boundary
Why it matters: Fisher & Paykel manuals use different drain-code labels across families, so the code cannot be interpreted safely from brand alone.
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PATH 05Next step
What you see
There is active flooding, water near electrics, a jammed pump, sharp/glass debris, repeated fault or no drainage after external checks.
Do this next
Turn off water and power only from a safe location, keep the dishwasher off and arrange qualified service; use emergency help for immediate electrical danger.
Why this path and its safety boundary
Why it matters: This is a stop-and-service condition. The opened guides route flood faults, jammed pumps and persistent faults to Customer Care/authorised service.
Helpful context
Understand the symptom
Identify the drain symptom before clearing anything
Water left after a wash, a displayed drain code, a pump that hums without emptying, and a leak or flood condition are not the same diagnosis. Write down the exact model, drawer if applicable, code and whether water remains. Fisher & Paykel’s support route provides model manuals and service; use that identity before copying a filter, pump-cover or code procedure.
Start with the accessible drain path
The opened guides repeatedly point to the drain hose, sink/drain connection, filter and visible food blockage as distinct checks. Perform those checks only with power and water isolated and only where the exact manual allows access. A clear filter and hose do not prove a failed pump, and a code from another DishDrawer or dishwasher family must not be imported.
Treat a blocked pump or flooding as a service boundary
The Fisher & Paykel manuals warn that glass or sharp fragments may be in a blocked pump and tell owners to call authorised service for a jammed pump or activated flood condition. Do not reach into standing water, force the pump cover, run repeated cycles, or remove electrical panels.
When checks do not resolve it
Need a professional?
Arrange Fisher & Paykel authorised service if the filter and visible hose/connection are clear but the drainage error returns, the pump is jammed, or water remains., Turn off water and disconnect power only when safe for active flooding, water near electrics, visible glass/sharp damage or a documented flood fault; do not reach into unsafe standing water., Do not open electrical panels, force the pump cover, pull out an integrated dishwasher for plumbing changes, bypass a flood switch or order a pump/valve from an unmatched model code.
Have this ready
- complete model and serial number, and drawer/side if applicable
- exact code or indicator pattern
- whether water remains and how much
- filter/plate and visible hose/connection observations
- whether there is a leak, flood, glass/sharp debris or water near electrics
Common questions
FAQ
What does a Fisher & Paykel dishwasher drainage error usually require first?
Record the exact model/code, isolate power and water, then follow the model manual’s external checks for the filter, drain hose and drain connection. A clear path does not prove a failed pump.
Is A20 the same as E4 on every Fisher & Paykel dishwasher?
No. The opened manuals use A20 for a drain fault in newer DW60 families and E4 for a drain fault in an older DW60CE/CC family. Confirm the exact model before interpreting a code.
Can I clear a blocked pump myself?
Only if the exact manual permits access and power/water are isolated. Fisher & Paykel warns about sharp objects or glass and directs a jammed pump to authorised service.
What should I do if the dishwasher is flooding?
Turn off the water and disconnect power only from a safe location, keep the appliance off and contact Fisher & Paykel Customer Care or qualified service. Do not continue cycles to drain it.
Read the exact guide
Official sources
- DW60CE and DW60CC Dishwasher User GuideFisher & Paykel Appliances Ltd · Official Fisher & Paykel-hosted older-family manual. Used only to demonstrate the E4 drain-fault scope, water/power isolation, flood boundary and jammed-pump service direction; do not transfer E4 to other families.
- DW60UNT4X2/DW60UNT4B2 Contemporary Dishwasher User GuideFisher & Paykel Appliances Ltd · Official Fisher & Paykel-hosted manual for named DW60 contemporary models. Used for filter/plate maintenance, visible hose/filter/pump causes and A20 code scope; exact model controls applicability.
- Help & Support | Book A Service | Repair | Technician | Fisher and Paykel CanadaFisher & Paykel Appliances Ltd · Official Fisher & Paykel support hub. Supports model/manual lookup and service routing; it does not establish a universal drainage code or pump procedure.
- DW60U4HI2 Integrated Dishwasher User GuideFisher & Paykel Appliances Ltd · Official Fisher & Paykel-hosted manual for DW60U4HI2. Used as a scoped family/model example for A20 drain fault, filters, hose/connection, pump obstruction and sharp-object safety; not universal to all Fisher & Paykel dishwashers.
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