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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I have a Powerstar water heater, the little red light, comes

Customer Question

I have a Powerstar water heater, the little red light, comes on and off automatic,of
course when the light is off cool water and when is on hot water again. I have to play with till is red again to get hot water.
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.

Hello, its a flow switch issue most likely.

Turn on two or three hot taps at once and tell me if stays on or not. And if you can find it on a model number tag, the model number will be useful.

I also need to know about how old the unit is.

We can go from there.