1998 volvo v70 weird air conditioner

gaohua97115 · Post by **gaohua97115** » 13 May 2014, 21:35

since last week at the driver side the air conditioner is blowing hot air. but at the middle and passenger side both work ok. the light on the two button controlling air conditioner ever flashed several time, but Now no more flashing and looking fine. Because no volvo dealer is nearby I want DIY. who can give me some idea to locate the problem and fix? thanks

Post by **abscate** » 13 May 2014, 21:41

I am guessing you have an electronic climate control. If you are getting cold air on one side, one of the motors in the climate control controlling the blend for driver side gas stopped working.

gaohua97115 · Post by **gaohua97115** » 13 May 2014, 21:53

thanks.
do you know to verify this?

gaohua97115 · Post by **gaohua97115** » 13 May 2014, 23:21

abscate wrote:I am guessing you have an electronic climate control. If you are getting cold air on one side, one of the motors in the climate control controlling the blend for driver side gas stopped working.

yes, My car has the ecc. Maybe I did not explain my problem clearly. When I turn on the air conditioner with the recirculation and ac both on to get the cold air, the driver side keep blowing hot air but the middle and passenger side will gradually turn to blow the cold air from hot air because it is summer.

As what you said is it possible that the motor at the driver side stop working?
thanks

Post by **abscate** » 14 May 2014, 04:28

Since you are getting cold air on the pass side, the AC refrigerant circuit and components are functioning ok. The system splits the air between driver and passenger, and each temperature is controlled by a blend door which mixes hot and cold air.

Your problem is also most certainly a driver side blend door or motor problem. It could just be as simple as the linkage has fallen off. I'll try to link to a thread with pictures.

gaohua97115 · Post by **gaohua97115** » 14 May 2014, 10:39

abscate wrote:Since you are getting cold air on the pass side, the AC refrigerant circuit and components are functioning ok. The system splits the air between driver and passenger, and each temperature is controlled by a blend door which mixes hot and cold air.

Your problem is also most certainly a driver side blend door or motor problem. It could just be as simple as the linkage has fallen off. I'll try to link to a thread with pictures.

Thanks, abscate. You are absolutely experienced expert.

This morning I found one fuse of climate control burned. After replaced still blow hot air.