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Got my new Pentair Thermal Regulator at the local supply house, and it tested properly. I had reinstalled my old Regulator previously in order to keep my heater working, but apparently, in so doing, it fell apart and some of the larger pieces fell down the manifold. So, in order to retrieve...

Just got my new thermal regulator and I'm now shipping it back. It didn't open until 190 degrees.

I just pulled the Thermal Regulator and it was definitely in need of replacement. It's rusted out and permanently open. I just ordered a new one. $146 at the local pool supply, $29 on Amazon. Since the heater generally runs smoothly, I went for the on-line one, even though I know that it is...

Thanks for the reply. I'll go ahead and check out the Thermal Regulator. Since there is no specific code or light on the circuit board associated with the thermal regulator, would it's failure set the Service Heater indicator? Pentair Intelliflo VSF - I believe that it's 3HP (HHP:1.88...

My heater shuts off every once in a while (recently daily) with a Service Heater light. I turn the heater off and back on and it then appears fine. When I checked the back of the circuit board, none of the indicator lights were on, except for a red LED on the bottom right next to R15. There is...