Question about Hitachi RAS-09UH Air Conditioner

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Outside unit has frozen

My outside unit has considerable frozen content on the vents and will not operate. What can I do?

Thank you,

Lee

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  • 236 Answers

Check your air filter and evaporator at the indoor, and also the outdoor condenser coil if clean, be sure that the outdoor has no obstruction to both front and back of the unit. If dirty then clean both indoor and outdoor. If clean let the ice melt by turning of the unit and unplug the power cord or off the circuit breaker to reset the error if error is present. And on the unit again and observe if icing is present when unit is operating. If icing is present after 10 to 30 min of operation then the unit is under charge.And while unit is operating adjust your thermostat to higher temp. to check if thermostat is operating normally. If the outdoor will trip off after the adjusting the temp. then your thermostat control is ok if not then the thermostat control have a problem.
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Posted on Jan 21, 2008

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