Question about Hayward H Series

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My hayward H series above ground heater. Will not keep heating.

My hayward H series above ground heater. Will start up and heat for 30 seconds and then heat shuts off. Motor still runs. I bypassed the sensor on exchanger by pulling the two wires off and jumping them. heat still does not keep coming. There are three sensors and I jumped across all of them in succesion. I don't think sensors are problem. can you help. thanks jack

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Sounds like the heat exchanger is sooted up. Desoot...messy job but sounds like you know your way around the heater

Posted on Aug 30, 2009

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The Hayward H100 has a diverter plate welded into the header that helps direct some of the water flowing thru into the heat exchanger to heat the water. If the weld fails the diverter can interfere with that flow and cause overheating or poor flow thru the heater which in turn can lead to the problems you describe.


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