So to begin, we have a deep submersible well pump. We noticed that our water pressure was getting weaker and weaker. At first I believe it was because of the well house not being properly insulated causing a freeze. I came to this conclusion because we started having water issues when it started to get really cold out and the well pressure would be at its lowest during the coldest parts of the night. After a few days of the pressure weakening, I decided to reinsulate everything. Even after that, still no luck. At this point, we have no water coming into the house. I realized the pump wasn't turning on and was causing a humming sound near the control box. I opened it up and saw a burnt "relay/contactor". Once I replaced it, viola, we had water again. But this time, the pressure gauge was reading 0 PSI. Even tho we are getting decent water pressure to the house. The water pressure was noticeably weaker then before the freeze.
My main concern is, what could cause the relay to get burnt out like that? Is my pressure gauge faulty? I just want to be able to care for my well proactively before something bad and expensive happens.