Question about Ruud UBHC Air Conditioner

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Earlier this week, I noticed that the house felt "stuffy" but the thermostat showed everything to be cooling as expected. Last night, the house was definitely warmer than expected when we got home. My husband did some checking and found that the outside unit was running as normal, but there was no cool air coming through the vents inside the house. turning the a/c unit off at the thermostat did NOT turn off the outside unit...was only able to do this at the circuit breaker. It seems that the fan is still blowing (when everything is on) but is not cooling. Is this related to our thermostat? Do we need to have the freon level checked? I apologize for not having specifics on our unit, other than it is a Trane, approx 14 years old. The inside unit was replaced about 5 years ago.

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If both fans runs (inside and outside), check if the compresor runs , if does probably the unit is low in freon and needs to be recharged after the freon leak has been fixed (remember this is a seal system and it shouldn't leak), but if the compressor doesn't work , it could be the capacitor , the pressure switch (if it's low on freon ) or the compreessor itself.But befor do anything ,if you have a digital thermostat replce the batteries.

Posted on Oct 01, 2009

  • christian nielsen Oct 01, 2009

    If both fans runs (inside and outside), check if the compresor runs , if does probably the unit is low in freon and needs to be recharged after the freon leak has been fixed (remember this is a seal system and it shouldn't leak), but if the compressor doesn't work , it could be the capacitor , the pressure switch (if it's low on freon ) or the compreessor itself.But befor do anything ,if you have a digital thermostat replce the batteries.

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