UK Appliance Repair Questions? Ask a Technician for Answers ASAP
Hello and welcome to just answer my name is ***** ***** I will be the one to assist you. The first thing that comes to mind that makes you have to bang on it tells me possibly the lid lock is not initiating. Do you hear the clicking of the lock when you shut it and go to start a load?
I believe the problem is your door lock. It will try to click up to 3 times without locking properly and will give up. Slamming the door is making the lock switch activate but until you replace it this problem will continue.
Checking in with you since I have not heard back from you.
Well the reason I assumed the lock is because of the banging you have to do. If the relay board is the problem that means your control board. The clicking on off on off means its not sticking correctly but if you do not think the locking is the issue I will open this up to other experts for another opinion.