Air condition problem

[mares1]

My SMXII inside temp. display will drop down to 54 while the ac is on even thought the true inside temp is 72. When I turn off the cool and just run the fan the temp will begin to raise up.

Any idea where the sensor is and what I can do abour this.

Thank you

 

[fc3]

First, did you read the manual? The sensor is usually in the same compartment with the unit somewhere in the air stream returning to the unit. It's a 2" by 1/4" metal cylinder with a wire on one end.

Best regards,
Frank

 

[jg300da]

The problem is that the metal casing of the sensor is clamped to the metal frame of the evaporator coil using a metal clamp. The coil and frame gets cold and the sensor is influenced due to conduction. Remove the sensor from the clamp and re-attach it away from the coil in the return air stream using a plastic wire tie as a thermal break. Problem solved.
By the way, your manual will not tell you that.

 

[mares1]

Thank you for your help that is just what Cruise Air told me to do.


thanks again