FULTON PHW 1000, Installation, Operation And Maintenance Manual

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Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 57
e) If the gas valve opens but the boiler does not start, check the spark plug to be sure it is
working properly.
f) The plug may be bad or the plug wire may be loose. Check gap of plug It should be .050"
to .060". When replacing plug be sure to use Never Seize on threads of plug.
g) When the unit fires and pressure is sensed in air valve housing, the unit will continue to
operate until main power is shut off to the controller either through the temperature switch
or main power switch. Once the pressure is sensed in the air valve housing (proof of
flame), the assist fan and spark will turn off.
h) Do Not Change Flame Pressure Switch Settings.
Caution
Should overheating occur or the gas supply fail to shut off, shut off the gas supply
at a location external to the boiler.