Westinghouse Washing Machine Error E43

⚡ Quick Answer: The Westinghouse Washing Machine error E43 indicates a problem with the door lock mechanism and is often linked to a fault in the drain pump TRIAC or ... ✅ DIY Fixable

What Does Error E43 Mean?

The Westinghouse Washing Machine error E43 indicates a problem with the door lock mechanism and is often linked to a fault in the drain pump TRIAC or related sensing circuitry. This error typically results in the washing machine entering a safety drain mode, causing the cycle to stop mid-operation. Symptoms may include a blinking display and the drain pump attempting to run but potentially failing or stalling.

Common Symptoms:

  • Washing machine stops mid‑cycle with E43 displayed
  • Machine enters safety drain mode
  • Drain pump may run or try to run
  • Drain cycle may fail or stall

Possible Causes

  • Drain pump TRIAC or sensing circuit fault (medium)
  • Faulty drain pump or wiring feeding pump (medium)

How to Fix Error E43

DIY Fix Basic drain and reset checks

  1. Power off and unplug the washing machine for safety.
  2. Inspect the drain hose to ensure it is not kinked, blocked, or improperly positioned.
  3. Check the drain filter (if accessible) for debris and clean it.
  4. After ensuring clear drainage, plug in and restart the machine to see if the error clears.

Technician Only Diagnose and repair drain pump drive circuitry

  1. Isolate and test the drain pump motor and rotor for free movement and electrical continuity.
  2. Inspect wiring harness and connections between the control board and the drain pump/TRIAC circuit.
  3. Test or replace the TRIAC or related driver components on the control board if found faulty.
  4. Verify proper functionality of the drain sensing circuitry and replace components as needed.

Parts needed: Drain pump assembly, Control board (drain TRIAC/sensing circuit), Wiring harness/connectors

🛑 When to Call a Pro:
  • If visible water leakage occurs while troubleshooting.
  • If internal electronic or control board components must be accessed without proper tools or expertise.
  • If repeated error persists after basic drain cleaning and reset attempts.

Next step

Choose the next step for E43

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

Based on diagnostic data

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.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Also check
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Other components that may be involved

Check these only if your diagnosis points to them.

Possible related component

Main Control Board

The central brain of the appliance that controls all components, cycles, and timings.

$120 - $280 · Medium · 20-40 mins

Check fit & price

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Technical Specifications

wattage N/A
component Door Lock Assembly
resistance 1-5 ohms
part_number WH12X10529
voltage_rating 120V AC

Common Questions

What does E43 error mean on Westinghouse Washing Machine?

E43 indicates a malfunction in the door lock mechanism or a fault in the drain pump TRIAC, causing the machine to stop mid-cycle.

Can I fix Westinghouse Washing Machine E43 error myself?

Yes, you can perform basic checks like inspecting the drain hose and cleaning the drain filter.

How much does it cost to fix E43 error?

The estimated repair cost for E43 error is between AUD $150 and $400, depending on parts and labor.

When should I call a technician for E43?

Call a technician if you see visible water leakage or if the error persists after basic troubleshooting.

Data last verified: 2026-07-22

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