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poolguy810, owner - pool and spa service company
Category: Pool and Spa
Satisfied Customers: 1675
Experience:  Servicing pools and all brands of spas for over 28 years.
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My Hayward H300 Pool heater won't fire up. the pilot is li

Customer Question

My Hayward H300 Pool heater won't fire up. the pilot is lit?
Submitted: 2 years ago.
Category: Pool and Spa
Expert:  Rick replied 2 years ago.
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue.
I'll assume the thermostat is set higher than the pool temp and the system switch is ON. The first thing to try is to jump the TH & TH/PP terminals on the gas valve. This assumes you have a unit with a pilot that's lit all the time not electronic ignition. Tell me if the burner fires up when you jump the gas valve terminals