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Electric space heater contactor won't stay latched

2-yr. old Fahrenheat FUH724 240VAC electric space heater malfunctioned this season. Contactor won't stay latched and cycles and cycles on and off every few seconds. Any cures other than a new contactor? 240V goes through high limit switch, contactor coil and thermostat. Would temporarily bypassing the thermostat and limit switch identify any contactor coil problems?

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Jumpered the bimetal thermostat and everything worked smoothly. Tried to clean contacts in thermostat with no luck, so ordered a replacement. At least it was cheaper than the contactor.

Posted on Dec 12, 2008

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It sounds like you have 120v from line 1 and line to to ground. What do you have between line 1 and line 2?
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