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F43

Error code

medium severity Siemens

F43 Error: Your Siemens dishwasher has stopped mid-cycle and is display

Your Siemens dishwasher has stopped mid-cycle and is displaying the F43 error code on its control panel. This is a door lock fault, which means your dishwasher isn't able to secure the door properly during operation. The appliance has sensed that the latch mechanism isn't engaging as it should, so it's automatically halted the wash cycle as a safety precaution. The good news is that many F43 faults can be resolved without calling out an engineer, potentially saving you a considerable repair bill. The issue typically stems from one of several components rather than a major mechanical failure. Most commonly, the problem lies with the door latch assembly itself, which may have become misaligned, worn, or simply accumulated debris preventing it from clicking into place. The door strike catch could also be faulty, or the electronic door lock solenoid might need attention. Before contacting a technician, it's worth checking whether something obvious is blocking the latch or if the door has become misaligned. This guide will walk you through the most likely causes and what you can safely inspect yourself.

Diagnostic Steps

  1. 1

    Step 1

    Check door seal is not obstructing closure

  2. 2

    Step 2

    Inspect door latch mechanism for damage

  3. 3

    Step 3

    Check door lock wiring connections

  4. 4

    Step 4

    Replace door interlock if faulty

⚠️ Always disconnect your appliance from mains power before starting any repair. If in doubt, consult a qualified engineer.

Frequently Asked Questions

What does the F43 error mean on a Siemens dishwasher?↓
Your Siemens dishwasher has stopped mid-cycle and is displaying the F43 error code on its control panel. This is a door lock fault, which means your dishwasher isn't able to secure the door properly during operation. The appliance has sensed that the latch mechanism isn't engaging as it should, so it's automatically halted the wash cycle as a safety precaution. The good news is that many F43 faults can be resolved without calling out an engineer, potentially saving you a considerable repair bill. The issue typically stems from one of several components rather than a major mechanical failure. Most commonly, the problem lies with the door latch assembly itself, which may have become misaligned, worn, or simply accumulated debris preventing it from clicking into place. The door strike catch could also be faulty, or the electronic door lock solenoid might need attention. Before contacting a technician, it's worth checking whether something obvious is blocking the latch or if the door has become misaligned. This guide will walk you through the most likely causes and what you can safely inspect yourself.
Can I fix the F43 error myself?↓
Many F43 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.

Quick Summary

Code
F43
Brand
Siemens
Parts to check
0