Had call from customer saying the end light is on constant and prog cannot be selected. She had a new interlck fitted from competitor 1 week ago, Any ideas before i call cheers . PCB?
If Jims not already covered it, fact the door switch has changed its possible if fitting the new switch they have got the plug the wrong way or the right way for the old switch but wrong for the new type.
This will take out the board.
Check it out before fitting a new board just in case.