Pentair Mastertemp heater troubleshooting

amy6152

Member
Apr 4, 2017
24
Rochester, NY
My heater runs for 2-5 minutes then shuts off. Check heater light comes on, no other error code. Any suggestions before I incur a repair bill?

Not sure if it’s related but the heater has “gone rogue” for the past two seasons, turning itself on and setting the temp into the hundreds randomly. We simply took to controlling it from the breaker box and I assumed the mother board needed to be replaced. Not that I did it…
 
My heater runs for 2-5 minutes then shuts off. Check heater light comes on, no other error code. Any suggestions before I incur a repair bill?

Not sure if it’s related but the heater has “gone rogue” for the past two seasons, turning itself on and setting the temp into the hundreds randomly. We simply took to controlling it from the breaker box and I assumed the mother board needed to be replaced. Not that I did it…
You need a competent service guy to check the heater. Sounds like you have multiple issues that need diagnosing. Or, you can fire the "parts cannon" at it. How old is the heater?
 
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