Volvo RWD 900 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 1/2007 900 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Ac non working 900 1993

posted by  Blindboy on  Sat Jul 25 16:09 CST 2020
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Oct 21 17:56 CST 2014
[RELATED]

My Ac had a leak.in the condenser . So I replaced it & the little seals,w a good one.
Then jason ,Volvo collecter ,,evacuated it for me..It held &then we added 2 lbs of 134a.
So for some reason when I tried to start it the compressor wont engage...
Any ideas?/My doggies really deserve for it to work!!








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Ac non working 900 1993

    posted by  Amarin on  Sun Jul 26 11:09 CST 2020
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Thu Oct 23 22:42 CST 2014
    [RELATED]

    Having replaced the condenser, you haven't mentioned seeing any debris from the old condenser. Debris could block the sensing hole at the purple pressostat. Check and clean it for any debris (carb cleaner is ok) then install it back.

    Amarin.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      Ac non working 900 1993

      posted by  Blindboy on  Sun Jul 26 11:41 CST 2020
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue Oct 21 17:56 CST 2014
      [RELATED]

      My Friend Jason evacuated it for me & said he hadnt seen any debris.I read some notes saying that pressure switch on the drier may be bad?I jumped the switch & the compressor ran.
      I m wondering if to replace the switch freon must be evacuated??








      •   REPLY TO THIS MESSAGE    PRINT   SAVE 

        Ac non working 900 1993

        posted by  Amarin on  Sun Jul 26 12:30 CST 2020
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Thu Oct 23 22:42 CST 2014
        [RELATED]

        "I m wondering if to replace the switch freon must be evacuated??"

        Normally no. There's a Schrader valve within the port. Unscrew the old pressure switch out (some Freon may burst out momentarily then stops) then install the new. Be sure to replace the O ring at the port too. Yes there's a very remote possibility the valve has failed stuck open after all these years but that's rare.

        Amarin.







<< < > >>



©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.