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Thread: Blower not working

  1. #1
    Join Date
    Apr 2011
    Location
    Israel
    Posts
    97

    Default Blower not working

    Hello all,
    Today there is a new issue with my 2002 xc70.
    The blower is working no more.
    Lights at the ACC are on , everything seams to work but the blower itself.

    Is there a fuse for only the blower?

    Any ideas before I take it off ?

    Tnx,
    Eitan
    Current:
    Volvo XC70 2002
    Volvo 245 83 , Ford Anglia 105E
    VW Passat TDI 2002 130HP

    Past:
    Volvo 245i 1993 , Volvo 144 1968 , Saab 1969
    Opel Rekord 1700 1973 , Pontiac Ventura 1973
    Opel Olympia 1700 1959 with AC
    Opel Olympia Coupe 1500 1958
    VW Variant 2 doors 1600 Auto. 2 Carbs 1972
    And many more...

    Looking now for a 1972-3 Ventura GTO

  2. #2
    Join Date
    Feb 2010
    Location
    Virginia Beach
    Posts
    2,409

    Default

    There is a fuse for the blower motor...can't remember if it's for the motor or the system...what does the OM say?

    Before taking ANY electrical component apart on this car - follow the battery disconnect/connect procedure to avoid damaging those components with stray voltage...
    Current Fleet:
    2006 Corolla (kid's car - 140K, Eco Contacts, Castrol Edge 5W30)
    2005 MB S600 (76K, Michelin AS3, M1 0W40)
    2002 V70-XC (179K, AltiMax RT43, Pennzoil Ultra 5W30)
    2002 V70-T5 (165K, IPD bars, Bilsteins, Conti PureContact, Mobil 1 0W40)
    1992 MB 300E (Sportline - 145K, Yokohama Avid, Liqui Moly 5W40)
    1990 4-Runner (V6, 4WD, mild lift - 252K, 31" BFG AT KO, QS 10W40 syn)
    1932 Packard Sedan (straight 8, dual sidemount spares, original paint and interior, Shell Rotella 15W40)

  3. #3
    Join Date
    Mar 2008
    Location
    Nova Scotia
    Posts
    2,382

    Default

    For the North American spec '02, Fuse #26, a 30A in the passenger compartment fuse block, is labeled for the control module for the blower. Fuses #23 and 24 are labeled for the climate control module itself. More than likely they are the same for the Euro or Middle East spec, but you should still check the fuse block label to verify.

    Has your blower been making any noises prior to this? If so, it is possible that the motor bearing or the brushes have packed up. In most cases, the blower in these cars is on nearly all the time albeit at a low speed. After 10 years, it's had quite a bit time on it so it's not unusual to have problems. I've had to replace the blower on every Volvo I've had that has had climate control on it and all at around the 10 year mark, give or take.

    Cheers,

    Bill
    Western Head, NS CDN

    '02 V70XC (Ash Gray)-365K kms to-date
    '96 854R (Red)-real CDN-spec 5 speed R - gone @250k kms
    '98 V70 -wife's basic, no options wagon - gone @390k kms
    '91 744GL - killed by son @ 220K kms
    '90 744T w/Turbo Plus -killed by son @260K mi
    '78 245 w/4sp-OD -killed by wife @166K mi
    '76 265 w/4sp-OD -gas hog gone
    And a whole tonne of other Euro stuff (VW (8), SAAB (5), Land Rover (4), Audi (3), BMW (2), Porsche (2), Mini (2), Opel (1), MB (1), MG (1), Sunbeam (1))

  4. #4
    Join Date
    Apr 2011
    Location
    Israel
    Posts
    97

    Default

    Thanks all for you advice.

    Blower didn't make any noise before it passed out.
    I was very amazed how quite it was during its operation.

    Fuses are OK.

    So what is left to check is that current reaches the blower from the control, an if so , the bower is dead.

    Do you know if it is a standard blower ? I mean S60 , V70 , S80 from same years (2000-2002- or maybe more) should fit ?

    Number of XC's here is very limited.

    Eitan
    Current:
    Volvo XC70 2002
    Volvo 245 83 , Ford Anglia 105E
    VW Passat TDI 2002 130HP

    Past:
    Volvo 245i 1993 , Volvo 144 1968 , Saab 1969
    Opel Rekord 1700 1973 , Pontiac Ventura 1973
    Opel Olympia 1700 1959 with AC
    Opel Olympia Coupe 1500 1958
    VW Variant 2 doors 1600 Auto. 2 Carbs 1972
    And many more...

    Looking now for a 1972-3 Ventura GTO

  5. #5
    Join Date
    Mar 2008
    Location
    Nova Scotia
    Posts
    2,382

    Default

    Quote Originally Posted by eitankon View Post
    Thanks all for you advice.

    Blower didn't make any noise before it passed out.
    I was very amazed how quite it was during its operation.

    Fuses are OK.

    So what is left to check is that current reaches the blower from the control, an if so , the bower is dead.

    Do you know if it is a standard blower ? I mean S60 , V70 , S80 from same years (2000-2002- or maybe more) should fit ?

    Number of XC's here is very limited.

    Eitan
    Blower motor is a fairly standard piece of kit for those years, at least as far as the P2 chassis is concerned. VIDA indicates same motor (PN 9171479) used across the board.

    Make sure that you are getting current to the motor before you assume that it is indeed a bad blower. Both the climate control module and the motor's power unit (i.e. resistor pack) can also control voltage to the motor. It is recommended that when the blower motor is replaced the resistor pack be done as well. I didn't do mine and so far, so good, but....

    It might be handy if you could get the car scanned with a VIDA/DiCE. There are codes that will be generated by the climate control system for a failure somewhere in the system including a bad blower and the numerous components that can affect blower operation.

    Below is the VIDA procedure for doing the basic checking of the blower motor:
    ***************************
    Checking the blower fan control
    Checking components and wiring
    Caution! The blower fan motor power unit is very sensitive to short-circuits and excess current. Do not damage the power unit when taking readings. Take readings with the power unit connector disconnected when checking the wiring.
    Check the function of the blower fan motor: Connect its positive terminal to battery voltage and the minus terminal to ground.

    Check that fuse 26 in the in the fusebox in the passenger compartment is intact. If the fuse has blown, check the signal cable between fuse number 26 and power unit terminal #A2. Check for a short-circuit to ground.

    If the fuse has blown, also check the signal cable between power unit terminal #B2 and the blower fan motor positive terminal. Check for a short-circuit to ground.

    Check:
    the control signal cable between climate control module terminal #A3 and power unit terminal #A1

    the diagnostic signal cable between climate control module terminal #A2 and power unit terminal #A3.

    check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.

    Remedy as necessary.
    ***************************

    Good luck,

    Bill
    Western Head, NS CDN

    '02 V70XC (Ash Gray)-365K kms to-date
    '96 854R (Red)-real CDN-spec 5 speed R - gone @250k kms
    '98 V70 -wife's basic, no options wagon - gone @390k kms
    '91 744GL - killed by son @ 220K kms
    '90 744T w/Turbo Plus -killed by son @260K mi
    '78 245 w/4sp-OD -killed by wife @166K mi
    '76 265 w/4sp-OD -gas hog gone
    And a whole tonne of other Euro stuff (VW (8), SAAB (5), Land Rover (4), Audi (3), BMW (2), Porsche (2), Mini (2), Opel (1), MB (1), MG (1), Sunbeam (1))

  6. #6
    Join Date
    Apr 2011
    Location
    Israel
    Posts
    97

    Default

    My friend ordered 2 new pcs models of blowers , that are suitable for this chassis.

    I will get them tomorrow.

    I think I will connect them to the ACC first, before I take out the original.

    If it will not work , that I should search somewhere else.

    I don't want any electrician messing with this car.

    I am afraid that "ghosts" will wake up in my car after such treatment.

    Tnx for all the assistance.

    Eitan
    Current:
    Volvo XC70 2002
    Volvo 245 83 , Ford Anglia 105E
    VW Passat TDI 2002 130HP

    Past:
    Volvo 245i 1993 , Volvo 144 1968 , Saab 1969
    Opel Rekord 1700 1973 , Pontiac Ventura 1973
    Opel Olympia 1700 1959 with AC
    Opel Olympia Coupe 1500 1958
    VW Variant 2 doors 1600 Auto. 2 Carbs 1972
    And many more...

    Looking now for a 1972-3 Ventura GTO

  7. #7
    Join Date
    Apr 2011
    Location
    Israel
    Posts
    97

    Default Got it replaced

    Hello all,

    Fan was replaced and working well.

    Before I took it out , I connected the new one to the old regulator to see if it is the fan or the regulator that is dead.
    It turns out that the fan was the problem.

    Replacing it was not hard. But only thing needed to be done was to take out the regulator , and that was a little tricky. I took the motor out of its plastic case in order to assemble the regulator. Fixing the motor back to the case should be done carefully and should be aligned perfectly.
    It is recommended not to use the plastic fan to pull or push the motor , it can brake or the damage the motor.

    One of the screws was hard to reach , but eventually I managed to take it out.

    I followed the guidelines with regards to power disconnection and it worked fine.
    I have noticed that when I connected back the battery , fan started to run , so this is probably the reason for ACC fault .

    Hope this replacement will work at least as long as the original German made..


    Tnx for all your assistance.

    Eitan
    Current:
    Volvo XC70 2002
    Volvo 245 83 , Ford Anglia 105E
    VW Passat TDI 2002 130HP

    Past:
    Volvo 245i 1993 , Volvo 144 1968 , Saab 1969
    Opel Rekord 1700 1973 , Pontiac Ventura 1973
    Opel Olympia 1700 1959 with AC
    Opel Olympia Coupe 1500 1958
    VW Variant 2 doors 1600 Auto. 2 Carbs 1972
    And many more...

    Looking now for a 1972-3 Ventura GTO

  8. #8
    Join Date
    Jan 2012
    Location
    Banff Alberta
    Posts
    1

    Default

    Don't forget to check the fan switch itself. I noticed that my fan switch/dial turned with no stop point. The LEDs went from 0-Max but when I asked a Volvo tech (while making an appt to have the blower replaced for $500!!) if the switch was supposed to have a stop point he said 'yes' ... he said a clip might have come off and they'd check while replacing the fan. Got me thinking...tried to pull off the fan knob to see what was happening back there and voila! the blower is working again after trying to remove the knob!! We'll handle the switch with great care from now on and hopefully we'll have no more problems.

  9. #9
    Join Date
    Sep 2002
    Location
    Belgium
    Posts
    2,109

    Default

    Quote Originally Posted by pilsnermonkey View Post
    ....when I asked a Volvo tech (while making an appt to have the blower replaced for $500!!) if the switch
    was supposed to have a stop point he said 'yes' ...
    I don't know about the MY of your car, but the fan speed setting switch of my car (MY2004) has no stop.
    The system simply detects changes in the position of the switch, It can be indefinitely turned in either direction.
    Willy
    144 GL (1974)--->244 GL (1982)--->940 GLE 2.3i (1992)--->XC70 2.5T (2004)

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