Simpson Washing Machine Error E33
⚡ Quick Answer: The E33 error code on a Simpson Washing Machine indicates a potential malfunction in the water inlet valve, which may prevent the machine from filling... ✅ DIY Fixable
What Does Error E33 Mean?
The E33 error code on a Simpson Washing Machine indicates a potential malfunction in the water inlet valve, which may prevent the machine from filling with water. Users may also notice unusual sounds during the fill cycle. Basic troubleshooting steps include power cycling the washer, ensuring that the door is securely closed, and checking the water inlet and drain hoses for blockages or kinks.
Possible Causes
- Water Inlet Valve
- Faulty Wiring
- Water Supply Issues
How to Fix Error E33
DIY Fix Basic checks
- Power cycle the washer by unplugging it for at least one minute.
- Ensure the door/lid is fully closed and latched properly.
- Check that the water inlet and drain hoses are not kinked or blocked.
Technician Only Diagnostic inspection by professional
- Connect diagnostic equipment and read stored fault codes through service mode (if available).
- Inspect water level/pressure sensor circuitry and related wiring for faults.
- Check control board for error logging and integrity.
Parts needed: Pressure sensor, Control board/PCB, Door latch assembly, Wiring harness
- If error code repeats after basic checks.
- If the machine will not start or complete a cycle.
- If there are signs of electrical shorts or burning smells.
Next step
Choose the next step for E33
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
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
- Typical part-only price
- $120 - $280
- DIY difficulty
- Medium
- Estimated time
- 20-40 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.
Door Latch Assembly
Mechanically secures the appliance door and may operate a door-closed safety switch.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
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
| wattage | 50W |
|---|---|
| component | Water Inlet Valve |
| resistance | 2,000-3,000 ohms |
| part_number | Simpson 004450 |
| voltage_rating | 240V AC |
Common Questions
What does E33 error mean on Simpson Washing Machine?
E33 error indicates a malfunction in the water inlet valve, affecting the filling process.
Can I fix Simpson Washing Machine E33 error myself?
Yes, you can try basic checks like power cycling, ensuring the door is closed, and checking hoses.
How much does it cost to fix E33 error?
Repair costs can vary widely depending on diagnosis and parts needed.
When should I call a technician for E33?
Call a technician if the error persists after basic checks, or if the machine won't start or shows signs of electrical issues.
Sources & References
- Simpson Support Troubleshooter (general) (official)
- Simpson Official Customer Support Page (official)
Data last verified: 2026-07-22
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