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Intertherm heat pump,just cliks the contactor points @ times

I have replaced the contactor points & capacitor. The unit works well for heat & a/c. But at times the unit just sits & cliks the contactor. I do not know what the issue may be.
The ubit is a : Intertherm for my doublewide home, model #1832036/A...any help is appreciated........JW

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Visually inspect all of the line voltage wires and connectors feeding line voltage to your unit. It is possible a disconnect box or a connection in your circuit breaker electrical panel box is overheated/overheating; thereby preventing proper amount of power necessary for your motors to run. Be sure to turn the power off to your main breaker before attempting to open panels for electrical inspection.
I hope this is very helpful to you moving forward. :-)

Posted on Apr 23, 2010

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Sounds like you are on the right track. The symptom of the contactor not pulling is your clue to the solution. When you turn the thermostat down lower than the room temperature and the thermostat calls for cooling, the outside unit should start immediately. There are a few exceptions to this but generally this is correct. So if you turn the system to cool and the thermostat is calling for cool then the contactor should pull in immediately. If it does not then check for 24 volts to the contactor. If you have 24 volts to the contactor then the contactor is the problem. If you do not have 24 volt power to the contactor coil then you will have to find where the break in voltage to the contactor is happening.
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(All checks of the unit with power off to all breakers as there will be more than one
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The hum you hear indicates that the contactor is pulled in on the outside unit but still may
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