Recent content by dschuri

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    Strange problem with Pentair Mastertemp 250 - shuts off after many hours

    Thanks for your WAG. Yep no Fenwal LED lit at all when it happens There is probably a ton of corrosion in the heater - I have not opened the tub. This is an old boy (2015) and I'd like to get a season or 2 more out of it, maybe I should try the ground wire bypass (I've been reading the heck out...
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    Strange problem with Pentair Mastertemp 250 - shuts off after many hours

    Hi all, I have an unusual problem with my 2015 Pentair Mastertemp 250. It ignites just fine (igniter recently replaced) and brings the pool up to set temp just fine. But then, while maintaining the set temp (usually after 8-12 hours), it randomly shuts down and the Service Heater light lights...
  3. Temp Chart.png

    Temp Chart.png