Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 12/2018 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Electronic climate control misbehaving 850 1996

My wife has commented that the air temperature on our climate control system seems to be odd - the system intermittently blows cold air when it should be warming the car.

A little experimentation today seems to indicate that, once the inside temperature sensor is satisfied, the airflow switches to pure outside air, rather than blending warmed and outside air, with the effect being that cold air blows out the vents. We're headed up to Yosemite this weekend, with predictions of 22 degree weather, so she's concerned.

I vacuumed the sensor covers today, but this didn't have any noticeable effect. The manual says "take it to the dealer" (not for the first time, I find myself wishing I had a 1995, so I'd have OBDI blinky diagnostics available). Any suggestions?








  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Electronic climate control misbehaving 850 1996

Best bet is to remove the grab handles and the sensor cover. Then use a Qtip with alchohol, break cleaner, or electric cleaner to carefully clean the sensor and tiny fan. Be very gentle, they are fragile parts.

Klaus







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.