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HAVE A COLEMAN MODEL DRHSO601CB --- THE UNIT WILL RUN FINE FOR SEVERAL HOURS WITH GOOD COOLING AND THEN PERIODICALLY THE TROUBLE LIGHT WILL COME ON THE THERMOSTAT AND THE UNIT HAS SHUT DOWN. TO RESTART - YOU MOVE THE THERMOSTAT TO OFF WAIT 5 MINUTES OR SO AND PUT IT BACK ON COOL -- IT WILL RESTART ALMOST EVERY TIME AND RUN FOR SEVERAL HOURS. IN THE PAST IN THE PAST I REPLACED THE DEFROST CONTROL BOARD BUT WHEN I DID THAT THIS TIME IT STILL SHUTS DOWN - WHAT OTHER PROBLEMS ARE YOU AWARE OF ON THIS UNIT?

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You may have a low pressure or high pressure switch tripping out the board as well. You might try cleaning both the indoor (evaporator) coil and the outdoor (condensing) coil. Be sure to turn off the power source before servicing this.

Posted on Jul 01, 2008

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