Hi I have a Beko DCU8230. It stopped drying clothes so I took the back off and noticed the heater was not coming on so I ordered a new one fitted it and it was ok for a day. Then back to the same problem. I took the back off again and the same problem heater not working. I took the heater part off but left it connected and turned it on. It started to heat up but as soon as I put it back in place the heater elements go off again. It’s not a loose wire. So what can the problem be? Help please