Quick diagnosis
What this code is telling you
Most likely trigger
Garbage disposal knockout plug not removed
Recommended replacement
Dishwasher Micro Filter Assembly
Diagnostic path
4 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
The dishwasher records this code when the control cannot complete or verify the expected wash, fill, drain, or heating condition. Check garbage disposal knockout plug not removed first, then rule out clogged internal micro-filter and blocked drain hose air gap before replacing dishwasher Micro Filter Assembly.
Symptoms
What you may notice
- ✓Standing water in bottom filter cup
- ✓E24 code displays shortly after starting cycle
- ✓Drain pump humming sound
Possible causes
Check the most likely causes first
- 1
Garbage disposal knockout plug not removed
Start here when it matches your symptoms.
- 2
Clogged internal micro-filter
- 3
Blocked drain hose air gap
- 4
Impeded drain pump impeller
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Remove coarse and fine stainless steel filters from tub floor and wash under hot water.
- 2
Check 2
Check garbage disposal entry port for obstruction or unremoved plastic knockout plug.
- 3
Check 3
Remove white plastic drain pump cover inside sump and check impeller for seed or bone blockage.
- 4
Check 4
Verify drain hose is free of kinks and elevated in high loop.
Replacement part reference
Dishwasher Micro Filter Assembly
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for E24?
Start with garbage disposal knockout plug not removed. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does E24 always mean Dishwasher Micro Filter Assembly is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting E24 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Unplug the appliance before removing panels or testing internal components. Do not bypass safety switches or live-test high-voltage, gas, refrigerant, or combustion components unless you are qualified to do so.
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