DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Compressor not starting




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Old 06-22-2008, 01:09 PM  
marcats
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Default Compressor not starting

My 5 ton geothermal unit compressor does not start unless I hold in the
contactor.

1. What makes the contactor work ? I hear a click when I set the thermostat to call for cool or hot air.

2. By manually engaging the contactor, does this mean the contactor is bad ?

Thanks for any help.

Marvin



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Old 06-22-2008, 07:44 PM  
kok328
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the contactor is engaged by a 24VAC or 120VAC coil.
either the coil is bad or your not getting power to the coil on the contactor.
check your transformer if it's a 24VAC coil.
there could be a whole host of other reasons but, it may be premature at this point.
post back your findings.

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