The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

AC compressor will not engage 850

posted by  Rockytop on  Thu Jun 23 17:32 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue May 10 13:59 CST 2011
[RELATED]

1) "climate controlled car" -- I guess you mean that it has the Electronic Climate Control (with the temperature dial w/ numbered degrees)?
If so, are you getting any a/c fault codes?
Does that a/c fan stay on 100%, even when the whole a/c system is set to off (ie, not on automatic)?
2) Do you remember what the low-pressure reading was? Ballpark?

Here's Volvo lit for the Elect.ClimateControl (ECC):

"The a/c relay (is) activated by both the ECC module and the Eng.Control Module (ECM). The ECM turns a/c comp. off when engine is at full accel, at high eng. temp, and for 5-10 seconds after starting engine."

3) Is your engine temp. OK on the instrument panel gauge?
4) Is your Radiator Fan coming on within seconds of turning the a/c on? If not, it's still not conclusive b/c the same problem (non-Radiator Fan problem) could be causing the a/c AND the R. fan to not work. Does the R. Fan come on when engine temp gets high (after summer idling / driving in city for a while)? You may have to test the R.Fan and its relay if you aren't sure.






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.