[leafhppr]

Hi there,

My air conditioning is always on, even after I turned control switch for the blower or turn off the thermostate. The only way to turn it off is to cut the electricity from circuit breaker.

Any idea?

Thanks,
Ning

[leafhppr]

I have Comfortmaker RPJ II (heating and cooling). Thanks.

[icehouse]

Originally Posted by leafhppr

I have Comfortmaker RPJ II (heating and cooling). Thanks.

Check wiring. Also furnish Model number

[leafhppr]

Thanks for your reply. Please advise which wiring I need to check. The machine worked fine just a few days ago and blower and controller seem all working (automatically turned on/off), except air conditioning never stops. Very strange.

[jackssib1]

Originally Posted by leafhppr

Thanks for your reply. Please advise which wiring I need to check. The machine worked fine just a few days ago and blower and controller seem all working (automatically turned on/off), except air conditioning never stops. Very strange.

My unit is doing the same. runs, all the time gotta shut it off by switching off power, lol

[icehouse]

Disconnect the yellow wire on thermostat and see if A/C stops.

[northshore]

It sounds like the contacts in the fan relay are sticking. For more information visit: Northosre appliance repair

[icehouse]

Originally Posted by northshore

It sounds like the contacts in the fan relay are sticking. For more information visit: Northosre appliance repair

O/P Stated that that the blower (fan) stops,therefore the fan relay is not sticking. Sounds like the compressor contactor is sticking. Removing the yellow (to compressor contactor coil ) will prove this.