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Why does my A/C condenser compressor turn on and off every 5 minutes?

My air handler is only 3 1/2 ton Trane while my condenser is 4 tons. Check Freon charge and it was low, serviced it with enough Freon but now the lines are got frozen. Would this make a difference?

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You need good airflow across the indoor coil, the evaporator. Air warms the refrigerant. If there is no airflow, the refrigerant will come back out freezing cold (in liquid form) and can damage the compressor valves. Before charging any ac unit, good airflow must be checked for across both evaporator and condensor.
Too much, overcharging will cause freezing all the way back to the compressor in a capilary tube type of ac.
Where is it the refrigeration lines are freezing cold?

Posted on Apr 28, 2015

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