Simpson Washing Machine Error E20
⚡ Quick Answer: The Simpson Washing Machine error E20 indicates a drainage fault, meaning the machine has not detected a proper drop in water level during the drain p... ✅ DIY Fixable
What Does Error E20 Mean?
The Simpson Washing Machine error E20 indicates a drainage fault, meaning the machine has not detected a proper drop in water level during the drain phase. As a result, users may notice water remaining in the drum after a wash cycle, and the machine may halt or display the E20 code. Unusual noises from the pump area may also occur, often due to a clogged or obstructed drain pump filter.
Common Symptoms:
- Water remaining in the drum after a wash cycle
- Machine halts or displays E20 during/after drain phase
- Possible unusual noises from pump area
Possible Causes
- Clogged or obstructed drain pump filter (medium)
How to Fix Error E20
DIY Fix Check and clean drain pump filter
- Turn off and unplug the washing machine.
- Locate the drain pump access panel at the front/bottom of the machine.
- Place a shallow tray/towel to catch water, then open and remove the filter.
- Clear any debris, lint, or foreign objects from the filter and housing.
- Reinstall the filter securely and close the panel.
DIY Fix Inspect and correct drain hose position and condition
- Ensure the drain hose is not kinked, twisted, or crushed.
- Check that the hose is securely connected to the drain outlet and not inserted too far into the standpipe.
- Straighten any bends and clear visible obstructions.
Technician Only Test and service drain pump and impeller
- Disconnect the machine from power and water.
- Remove back or base panel to access the drain pump.
- Inspect pump impeller for damage or jamming debris.
- Measure pump motor windings; replace pump if out of specification or not running.
- Reassemble and test drain operation.
Parts needed: Drain pump assembly, Pump impeller (if separate), Seals/gaskets as needed
Technician Only Pressure sensor/level system calibration or replacement
- Enter service diagnostic mode to check pressure sensor readings.
- Inspect pressure tube for blockages or leaks.
- Re‑calibrate the pressure sensor if supported by model.
- Replace pressure sensor if faulty.
Parts needed: Pressure sensor/pressure switch, Pressure tubing
- After performing user‑level checks (filter, hose) and the E20 persists
- If you observe unusual noises from the pump or suspect pump failure
- If you are unsure about accessing internal components safely
Next step
Choose the next step for E20
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
- Typical part-only price
- $35 - $80
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does E20 error mean on Simpson Washing Machine?
E20 indicates a drainage fault where the machine fails to drain water, resulting in water remaining in the drum.
Can I fix Simpson Washing Machine E20 error myself?
Yes, you can check and clean the drain pump filter and inspect the drain hose for kinks or obstructions.
How much does it cost to fix E20 error?
Repair costs for the E20 error typically range from $80 to $250, depending on the required parts and service.
When should I call a technician for E20?
Call a technician if the E20 error persists after user-level checks, if you hear unusual noises, or if you're unsure about safely accessing internal components.
Data last verified: 2026-07-31
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