Too much pressure on city water input. Use a regulator pressure. or, shut up the city water valve outside open the TP valve and a hot water faucet inside the house and let water drain out until it stop running out. Close TP valve, hot water faucet and then open city water valve. That will create and air cushion on top of the TP valve inside the tank and then no more leak on TP valve
SOURCE: tp valve opening and dumping water
Certain water heaters can only handle so much pressure from the main line. There is a pressure controller between your water meter and you house, it's called a pressure regulator. You need to call a plumber to check and see if it needs to be adjusted or even replaced.
SOURCE: PTG-74PVN
I suggest you call tech support. I had a similar problem, and after walking me through a few tests, they determined it was likely a motherboard problem and are sending a new one. At 2 1/2 years, your unit should still be under warranty...
SOURCE: Rheem water heater Model 81v40DT
It sounds like the pressure/temperature relief valve is stuck open slightly, and draining out the PVC pipe. This is common in poor water locations.
You can try lifting the release on the top and letting it pop shut again, but chances are good that by now the seat has been destroyed by the water passing over it. Replacements are available at any home store, just remember to drain the water out of the heater so you don't flood the garage. MAKE SURE YOU TURN OFF THE POWER FIRST OR YOU WILL BE REPLACING THE ELEMENTS ALSO! You will need to wrap the threads with teflon tape before installing the new valve.
SOURCE: just purchaced a 99 jamboree with an atwood G6a-8e
It's gas operation only, but has electronic ignition for propane. ( just to confirm, if you look at back of water heater, it would have a metal or black plastic cover and hydro cable going in side or top of it.)
There are usually 3 things that may cause pressure relief to leak. 1) Faulty,corroded pressure relief valve, which usually needs to be replaced if it goes faulty. 2) water temperature is getting too hot, which could indicate a faulty thermostat. 3) If your hooked up to city water, the pressure may be too high, causing excess pressure build up in hot water tank, thus pressure relief opens. If your running off your on board pump, this is probably not the cause, as they are usually set at 40 psi.
Ist, - try pulling lever on relief valve slightly open ( careful it's hot !!) to clean out any calcium that may be logged on seal thus causing leak. If that doesn't do it, and the hot water isn't running out steady and appear to be under extreme pressure while leaking, then I'd change the pressure relief valve. Remember when you do, shut off water to system, and relieve pressure by opening a tap, and pressure relief as well after that. New one shouldn't be too expensive, just make sure you get same thread, 1/2"NPT or 3/4"NPT. Use a little teflon tape, or pipe dope whatever you prefer when re-installing as well as clean threads a little before.
If it really starts gushing out pressure relief when heating or heated, and water seems hotter than normal, it's more than likely a faulty thermostat. I'll wait for your reply on what condition your experiencing before I go in to how to change the thermostat.
SOURCE: I get a P1 error
just clean shower head or faucet with CLR to increase water flow. I have same problem
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