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Have an Old Circa 1990 Versa in-ground pool heater. Worked fine until this weekend. Haeter wouldn't start so I replaced pressure switch. After replacement still wouldn't start so I shook unit and it started shut down tried again 10 minutes later and it started. Today tried everything and won't start. What else can I check?

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Check all the electrical connections for corrosion. The older millivolt heater run on less than one volt and it's critical that all connections are making good contact. Clean as many of them as you can. You can also try replacing the pilot generator/assy as they lose power over time. Test to make sure output is more than 500mv.

Posted on Jul 04, 2010


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