Very seldom is a t-couple in a water heater bad. If it is going out, check the fvr screen. Usually it is dirty and needs cleaning.
I got my gas licence less than a year ago, so I'm quite new to the field. Anyway I work as a service tech. mainly fixing water heaters and some furnaces. Quite often i have problems with CV water heaters. Usually they require thermocouple replacement, but sometimes I get called back, the pilot is off again. I have my routine by now: Check TCO, than Voltage on THC, check if pilot is not to weak or yellow flame, check if the venting is correct, if there is no back-spill. Even if everything works OK, still in some locations there are repeated calls for no hot water. Am I missing something?
Very seldom is a t-couple in a water heater bad. If it is going out, check the fvr screen. Usually it is dirty and needs cleaning.
I love my job, but paydays Thursday
I was told thermocouple, even if it's new, but bent might give trouble. I check and clean screens too. Would a draft extinguish pilot?
Thread relocated to "Tech to Tech"
its stupid how they put these thermocouples. They use a LP orifice for all models. and they put the thermocouple under the flame. So dumb, the thermocouple should be in the flame, not the flame lifting off of it.
sometimes you gotta get creative with pilots. draft hoods are dangerous(barometric dampers are the correct way), look into a starkap.
maybe you have spillage and your not trained to see it. this could cause the floor to fill up with co2 which snuffs out the pilot.
i think your doing everything you can. look into some combustion training and you will never have trouble with another pilot call
I talked to another service tech, he told me that TCO could cause problems even if it doesn't trip. To me it is an on/off switch, nothing in between. He says that it could develop some resistance over time and cause pilot to go out. Any thoughts?