Question about Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1

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Hayward 250 millivolt pool heater fires up only when jumped. And stays on when I take off jumper? I get short at each sensor too. But it won't fire up by itself??

Just replaced pilot light assembly recently. Seemed to work fine for several weeks.

Posted by Peter Jenkins on

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matt_sams

matt sams

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SOURCE: Hayward 250 Millivolt propane heater will not fire up

Check your thermo couple... Should be easy to access and replace.

Posted on Jun 07, 2012

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