Quantcast

Troubleshooting Guide

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Noisy unit
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Liquid line hot
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Liquid line frosted
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Compressor will not start; no hum
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Compressor starts, but start winding stays in circuit
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Compressor starts and runs but cycles on overload
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Compressor starts but immediately cuts out on overload
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Compressor will not start; hums, but cycles on overload protector
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Compressor tries to start when thermostat closes, but cuts out on overload; finally starts after several attempts
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Run cycle too long or operates continuously
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Evaporator defrosts while unit is running
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Refrigerated space temp too high
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Run capacitor burns out
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Compressor short cycles
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Suction line sweating or frosted
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Start capacitor burns out
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Start relay burns out
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Head pressure too high
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Head pressure too low