Someone suggested I should replace the thermo coupling ( I don't know what that is.). I have another water heater not being used. Can I take the parts that come out of the little box on the side, and run to the burner, and replace them on the one not working? Or do I need to change the whole Box on the Side and Burner combo.
I'm not the greatest DIY'er, but I have changed out 2 water heaters (both gas) and I do know how to check for gas leaks. However I do not have the ca$h to pay a pro to do the job.
Any help most appreciated.