Where is my air charge sensor located on 2013 kia optima A/c blows hot air. Freon in good, fuse is good, blower works, clutch fan is moving, just no cold air. And it happened over night.

charge with freon

check the fuse of the blower motor if that is good the blower motor is gone you need you new one

The pressure means nothing as far as the state of charge. You need to have the system completely evacuated and recharged with the specific charge weight for that vehicle. Only then can the pressures or anything else mean anything.

I had the same problem with mine,it was the Blower motor resistor,it's located behind the glove box.

check the ac blower transistor under passenger side of dash behind the blower motor. on my 2003 compressor would not cut on , front blower only operated on high an blew hot air, rear blew on all speed but only hot air. $58.00 at dealer plus tax. 15 minute fix. there is a video on youtube that documents the process. just fixed today

Probably the blower motor resistor. Can you hear the compressor kicking on? If the fan won't blow at any speed, I'll bet it's the resistor.

Hope helps; keep in touch, and remember rated this help.

Hi - There may be 2 separate problems. On my 1991 Lincoln Town Car, there is a Thermal Blower Lockout sensor that disables the heater from blowing until the engine temperature reaches a specific temperature. This way if you have vent or floor settings and 90 degrees set and it is winter, you won't get blasted with cold air. When the vehicle warms up, the TBL circuit enables the climate control to blow the hot air. If you use the flr/def instead of the floor or vent control, the TBL should not prevent the heater from working even with a cold engine. On my car, the TBL went bad and always prevented hot air from blowing on the floor and vent settings, even when the engine was hot. Another thing to check is a thermal limitor resistor. It is designed to cut off the blower at very hot temperatures, except if the blower fan is in the hi setting.

As far as the A/C is concerned, can you verify if the clutch is engaging or not? A rapid cycling of the clutch is an indication of low freon. If you are absolutely sure that you are fully charged on freon, I think there are 2 possible causes: (1) Bad pressure switch on the accumulator is indicating low freon that is telling the compressor not to work; (2) a blocked orifice tube.

CHECK AC COMPRESSOR CLUTCH FUSE AND RELAY.MAKE SURE POWER IS GOING TO COMPRESSOR CONNECTOR.IF NO CHECK FUSE AND RELAY.IF YES.YOUR PROBLEM COULD BE AC CONTROL SWITCH BAD OR BLOWER MOTOR.COMPRESSOR CLUTCH SHORTED OR OPEN.AC PRESSURE SENSOR BAD OR REFRIGERANT IS LOW.

If it is cycling then its low on freon .. Try to put in one can and this will take care of your problem.. The cycling is due to being low .. The clutch is operated by a pressure switch .. when the clutch kicks in it pressures up but not enough freon will kick it back off and starts over again ... Thanks Jerry

well you are probaly loew on freon our the comp is bad find the comp and see if you are able to move it if you can than you should find someone that can add freon