Simpson Washing Machine Error E55

⚡ Quick Answer: The E55 error code on a Simpson washing machine indicates a malfunction in the motor drive unit. This issue may manifest as unusual sounds during oper... ✅ DIY Fixable

What Does Error E55 Mean?

The E55 error code on a Simpson washing machine indicates a malfunction in the motor drive unit. This issue may manifest as unusual sounds during operation or a failure to spin. To troubleshoot, users can attempt basic checks such as turning the machine off and on, ensuring water taps are fully open, and confirming that the door is securely closed. If the error persists or if other problems arise, such as water leaks or strange noises, further diagnostic evaluation may be necessary.

Possible Causes

  • Motor Drive Unit
  • Wiring Issues
  • Control Board Malfunction

How to Fix Error E55

DIY Fix Basic checks for unlisted/all washing machine error codes

  1. Turn the machine off, wait 10–30 seconds, then turn it back on to see if the code persists.
  2. Ensure water taps are fully open and inlet hoses are not kinked or blocked.
  3. Check that the lid/door is fully closed and latched properly.
  4. Inspect and clean inlet mesh filters and drain pump filter (if accessible).
  5. Redistribute laundry to avoid large imbalances in the drum.

Technician Only Diagnostic evaluation for unrecognized error code

  1. Connect a service diagnostic tool or enter the washer’s diagnostic/service mode (if available) to read any logged fault codes beyond the front panel display.
  2. Refer to the specific model’s service documentation or contact Simpson support for E55 definition.
  3. Visually inspect wiring harnesses and connectors for damage or corrosion.
  4. Measure the inlet valve, pressure sensor, drain pump, motor circuits and compare readings to specification.

Parts needed: Diagnostic tool, Multimeter, Service manual

🛑 When to Call a Pro:
  • If the machine displays an unrecognized code continuously and basic checks do not clear it
  • If water leaks, unusual noises, burning smells, or repeated failures occur

Next step

Choose the next step for E55

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

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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.

Maintenance supply

Washing Machine Cleaner Tablets

Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.

View maintenance supply
Maintenance supply

Braided Washer Inlet Hoses

A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.

View maintenance supply
Maintenance supply

Washer Drain Hose Holder

Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.

View maintenance supply

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 E55 error mean on Simpson Washing Machine?

E55 indicates a malfunction in the motor drive unit, often causing failure to spin.

Can I fix Simpson Washing Machine E55 error myself?

Yes, you can perform basic checks like restarting the machine and ensuring proper water supply and door closure.

How much does it cost to fix E55 error?

Repair costs for the E55 error can range from ¥5,000 to ¥25,000, depending on the technician and region.

When should I call a technician for E55?

Call a technician if the E55 error persists after basic checks or if you notice unusual noises or leaks.

Data last verified: 2026-07-31

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