Pool and Spa
Questions about Pool Repair? Ask an Expert Online.
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ok, first of all is the combustion fan running when unit is started?
that is the issue then....the fan must run first...then it closes an air switch...see if the exhaust an motor turns...see if it has power or is hot when it is turned on.
Just respond when you have more info
see page 35 HERE
Tell me if the air switch on page 35 is closing when fan runs