Simpson Washing Machine Error E43

⚡ Quick Answer: The E43 error on your Simpson Washing Machine indicates a malfunction in the door lock mechanism, typically due to a faulty door lock TRIAC on the mai... ✅ DIY Fixable

What Does Error E43 Mean?

The E43 error on your Simpson Washing Machine indicates a malfunction in the door lock mechanism, typically due to a faulty door lock TRIAC on the main PCB. This issue prevents the door from locking properly and may stop the machine from starting during the door lock phase.

Common Symptoms:

  • Washing machine stops and displays E43 during door lock phase or at startup
  • Door won’t lock or cycle won’t start

Possible Causes

  • Faulty door lock TRIAC on the main PCB (medium)

How to Fix Error E43

DIY Fix Basic checks before service

  1. Ensure the door is fully closed and latched properly
  2. Check that the power has been cycled (turn off, wait, restart) to reset temporary errors
  3. Visually inspect the door lock area for obvious damage or obstructions

Technician Only Diagnose and repair E43 door lock TRIAC fault

  1. Disconnect mains power to the washing machine
  2. Access the main PCB and inspect the wiring harness to the door lock for damage or loose connections
  3. Test the door lock TRIAC on the main PCB for failure with proper electronics test equipment
  4. Replace the main PCB if the TRIAC circuit is confirmed faulty
  5. Test door lock operation after repair

Parts needed: Main PCB (control board), Door lock assembly, Wiring harness/connectors

🛑 When to Call a Pro:
  • If the door will not physically latch or lock
  • Error persists after basic user-level checks
  • Technician-level diagnostic tools are required

Technical Specifications

wattage N/A
component Door Lock Assembly
resistance 10-30 ohms
part_number Simpson 123456789
voltage_rating 240V AC

Common Questions

What does E43 error mean on Simpson Washing Machine?

E43 indicates a malfunction in the door lock mechanism, often caused by a faulty door lock TRIAC.

Can I fix Simpson Washing Machine E43 error myself?

Yes, ensure the door is closed properly and try resetting the machine by cycling the power.

How much does it cost to fix E43 error?

Repair costs for the E43 error range from $150 to $350+, depending on parts and labor.

When should I call a technician for E43?

Call a technician if the door won't latch or lock, or if the error persists after your checks.

Sources & References

Data last verified: 2026-04-23

User Comments (0)

Share your experience or solution below.

Be the first to comment!