I have a lighting system for my home thats controlled by a circuit board and has ben in use for 20 years now. Recently, the lighting system switches can become un-responsive and if I remove the circuit board, disconnect all cables and power and leave it 'unplugged' for several hours, then reconnect everything it starts to function normally again for a day or two before becoming un-responsive again.
I know little or nothing about circuit boards but It seems like it may be a static charge issue. Is this basically a board that has reached the end of it's life or is there anything that can be done to fix this?
Any ideas would be gratefully accepted.