Door Does Not Unlocked Until Machine Unplugged

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

Hotpoint WT741 door stays locked until unplugged

The problem

After replacing a broken door handle and manually releasing the door via the interlock, the Hotpoint WT741 completed cycles normally but the door would not unlock when switched off at the button. It only released after being unplugged from the mains for about five minutes.

Likely cause

Most strongly supported diagnosis is that the door interlock was remaining energised after the machine was switched off, as the original poster reported the interlock stayed warm while the machine was still plugged in. The forum suggested the main control board as a suspect. A blocked pressure system was mentioned as a possible explanation, but this was considered less likely because the machine was still spinning and finishing the cycle normally.

What fixed it

No confirmed repair was reported. The accepted reply suggested checking whether the lock mechanism was catching or jamming and trying lubricant on the moving parts, but the stronger diagnosis in the thread was that the interlock was still being supplied with power and the exact repair was not confirmed.

Checks to try

• Door manually released from the back of the interlock during handle replacement
• Machine completed the cycle and spun normally
• No errors or flashing lights were reported
• Interlock felt warm long after the machine was switched off at the button but still plugged in
• Door released only after unplugging from the mains for about five minutes

Parts or tools mentioned

• door interlock
• main control board
• pressure system
• WD-40