Question about Pentair MiniMax 100 Aboveground 100,000 BTU Propane Gas Electronic Heater

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Minimax 100 runs for about 5-8 minutes and then shut off. Won't come back on for about a hour

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Check your water flow. If you have an external by-pass valve it need's to be 80-90% off so water will flow through heater. Also you will need to check the internal by-pass. You can find it inside the water manifold and if the external one has been left open it can cause the internal one to go bad. With out these the water goes past the heater and the water inside the heater overheats and shuts the heater down. With nothing to divert the water flow through the heater to bring fresh cool water in it will just sit till it cools and go through the cycle again.

Posted on Sep 08, 2010

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Posted on Jan 02, 2017

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