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    Harvey flooded Pentair Master Temp 400---need suggestions

    Thank you. I am pretty certain the blower is just not operating efficiently enough, but I think I may just buy a whole new unit. I suppose I can keep the old one for spare parts.
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    Harvey flooded Pentair Master Temp 400---need suggestions

    My heater was completely submerged. Yes, I've checked the air flow valve and tubes--they all stayed nice and dry inside and it clicks when you blow in it. I'm thinking my blower motor may just not be running as strong as it is supposed to. - - - Updated - - - Yes, we had a LOT of damage to...
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    Harvey flooded Pentair Master Temp 400---need suggestions

    Yes, I think you're right. My blower motor was seized at first, but I broke it free by hand. Then I completely dried it out and sprayed lube on the spinning parts. It actually fired up and heated the spa for about 10 minutes, and then it stopped with an "Air Flow Fault." The blower motor will...
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    Pentair MasterTemp 400 completely underwater for two days - Can it be repaired?

    I had the same problem, so I replaced the transformer ($35) and now it turns on. I am still having problems with my blower though.
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    Heater not powering on

    I had the same issue. I replaced the transformer ($35) and that fixed that issue. I'm still struggling with the blower though.
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    Harvey flooded Pentair Master Temp 400---need suggestions

    I am trying to get my heater up and running after the flooding of Hurricane Harvey too. I'm curious how it's working out now. I got my heater working for a bit, but now it has the Air Flow Fault. I completely disassembled it and drained the water from the combustion chamber and installed new...