Gas hot water heater doesnt start

[pjvos]

I have a two-year-old gas hot water heater with a power venting system. About four months ago, we ran out of hot water and called the plumber who told us that the power vent had tripped. Over the past couple of months with increasingly regularity, the hot water heater doesnt heat when its supposed to. I will disconnect and reconnect a few wires in the venting system (Ive come to find out about pressure switches, thermostats, etc.) and eventually the burner will kick in again. There is no rhyme or reason to when it comes on. Sometimes (like this morning) it works fine and reheats when its supposed to. Sometimes it doesnt. What are the possible problems and what can I check? (and what do I need to make sure the plumber checks?)

[Author]

Posts