We just bought a house and have been having problems with our heater it is very inconsistent. We were told to replace the pressure switch however it is obselete and the new one is not the same size and requires a bushing to connect. We did this and now the heater doesn’t worm at all. Anyone else dealt with this?
first photo is the new switch and the second one is the old one.
first photo is the new switch and the second one is the old one.