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Heater won't ignite when heater is turn on.

If i take spark plug wire off you can ignite pliot by hand. put spark plug wire back on just keep sparking,seem like pliot gas not on while spark plug is on. larry ps heater has a honeywell s86f intermittent pliot on this.

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The Honeywell s86f intermittent pilot control module relies heavily on a proper ground in order operate correctly, Check to make sure the ground wire connected to the right side of the module has a slid connection on both ends. This may require removing and replacing the wire. Also check the connections on both ends of the ignitor cable.

Posted on Feb 06, 2010

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See if the spark will arc across the area where the pilot flame is. It should cross the flame. Adjust the spark if possible.

Posted on Nov 12, 2008

  • jim_kunkel Dec 09, 2010

    pilot light is on but burner will not light. wiring schematic for honeywell VR8200A gas valve would help


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