Trane XE 900 - condenser fan


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Old 08-12-09, 12:52 PM
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Cool Trane XE 900 - condenser fan

The blower in the condenser unit is on all the time. I can set the thermostat to off and it continues to run. I changed the thermostat and no effect. Any ideas would be helpful.
 
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Old 08-12-09, 05:03 PM
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Are you referring to the inside or outside unit.
 
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Old 08-13-09, 06:29 AM
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This is the unit inside the house in the attic connected to all of the room vents.
 
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Old 08-14-09, 10:53 AM
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The inside unit is known as an air handler which contains the evaporator. The condenser is outside. As far as the problem goes, I suspect you lost your low voltage, 24v, power. I would start with the inside unit. Look for a blown fuse on the circuit board, is usually a purple, 3 amp, automotive type. If there is a fuse and it is ok, you will need to check the transformer output with a multi-meter.
 
 

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