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Hayward h100id troubleshooting

I have a Hayward h100id pool heater. It is 5 years old. Recently it heats poorly. The burner comes on, the fan comes on, but the water seems to heat about 40%. The burner and fan continue to run, but the water barely heats when I feel it entering the pool. It also smells like the natural gas is not fully burning? Where do I start to troubleshoot?

Posted by Rick Muller on

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jharwell668

Jessica Harwell

  • 640 Answers

SOURCE: Pool Heater. Hayward H100ID Starts fine

It sounds like your pool heater is not firing. I would check several things: the burner might be blocked and clogged, the gas valve might need to be replaced, the direct spark module might be malfunctioning, or the combustion blower might be cleaned. One of these is probably the issue. A service man can repair all of these problems.

Posted on Aug 19, 2010

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