Hotpoint wt540 not finishing wash

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Hotpoint WT540 stops mid-wash with lights 2 and 4 flashing and door locked

The problem

A Hotpoint WT540 was stopping mid-wash with lights 2 and 4 flashing and the start button flashing rapidly. The door remained locked and sometimes a drain cycle would complete and then release the door. The owner had already replaced the pressure switch and blown through the pressure tube, but the fault remained. Water was later found left in the bottom of the machine.

Likely cause

The strongest diagnosis in the discussion is a pressure-related fault, most likely the machine thinking it is still full of water. The accepted reply says lights 2 and 4 on similar Hotpoint models indicate 'pressure switch stuck on full', but it was not confirmed that this code applies to the WT range. If correct, that would point to a faulty pressure switch or a blockage in the pressure system, though those had already been checked by the owner.

What fixed it

No confirmed repair was carried out. The accepted advice was to be cautious about assuming the fault-code meaning for a WT model. The thread ended with the owner deciding to replace the machine rather than continue repair.

Checks to try

• Observed lights 2 and 4 flashing with rapid start light flashing
• Pressure switch replaced
• Pressure tube blown through to check for blockage
• Noted that drain cycle sometimes completed and then released the door
• Confirmed water remained in the bottom of the machine

Parts or tools mentioned

• Pressure switch