Questions & Answers for: pentair water heater keep shutting

Pentair Heater shuts off prematurely when warming spa I have the spa set to 100 degrees. Prior to turning on the spa heater the water temperature is about 60 degrees. The heater warms the spa fine ...

Pentair minimax nt 250,000 btu propane will startup, run for 30 seconds, service light comes on, heater restarts itself 30 seconds later. Will keep going just like this. Thanks in advance! The service

...temperature goes too high. This is often caused by a insufficient water flow. Ensure that you have good water flow before turning the heater on. Ensure that all valves are set to allow that to

...pentair minimax nt low nox pool heater. working great till yesterday. inspected and tried to diagnose concern. found the pwr lite on and the tstat,aux,press lite flicker on then right off. fan comes ...

...pentair mastertemp that keeps giving me e05 and shutting off. It stopped shutting off for three weeks and just started back doing it again. What do i do/ ignition check gas pressure and when it shuts ...

pentair MiniMax CH 200 won't shut off The heater will turn on and operate fine but when you turn the switch to off the heater keeps running and will not shut off. check temp sensor on control if ...

...adequate water flow thru the heater. If the heater seems to run OK with the Thermal Reg removed then order a new one. Pentair / Sta-Rite 77707-0010 Thermal Regulator Kit for MasterTemp / ...

...Pentair heater starts heating, I can feel the heat coming out, then makes a loud banging noise, then shuts off, and then it keeps trying to restart automatically. No error code appears. if plumbed ...

Pentair 125 pool heater 128 r14 code . It starts up and will run for a few minutes then shut down and service heater light comes on and nothing will work on control panel, when I unplug and restart it

...Pentair Mastertemp 250 heater that turns on, heats the water (so gas is flowing), but shuts off after about 30 minutes, and red light shows up "service heater" There is no error codes. The heater is ...