First post and I have to say this is a great forum (I just successfully replaced my alarm module from instructions found here - had to have the mechanic reset the car computer though).
Anyway, I am having a strange noise come from the center of the climate control. Took the car to the mechanics and they said the car has a noisy blend door motor and wants $400 to replace. Car is a 2004 S60.
I've done some searching and see there are blend door acuators (maybe 4 of them), blend doors, but no blend door motors.
Could someone explain a little more on this motor? Where is it, what does it control, difficulty of removal (any pitfalls), and where to get a new one?
Thanks in advance.
Noisy blend door motor
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OEMVolvoParts
- Posts: 266
- Joined: 31 August 2009
- Year and Model: ALL
- Location: CA
The term motor and actuator are pretty much the same here. It just moves an arm back and forth that controls the blending of hot and cold air. In the parts catalog they call it a "motor". The arm that attaches the motor to the air distributor box is a pretty common problem, that might be what is making the noise. It's best to get it apart and see for sure.
There is a left and a right side temperature motor. The left front actuator arm is the common one that breaks, it is pn 9171544, the motor itself on the left side is 31101058. We stock both.
If the sound is coming more from the drivers side then you have to remove the kick panel below the steering wheel to get access to the temperature control motor. From there you can see the arm that attaches to the box. Let's hope it is just the arm.
There is a left and a right side temperature motor. The left front actuator arm is the common one that breaks, it is pn 9171544, the motor itself on the left side is 31101058. We stock both.
If the sound is coming more from the drivers side then you have to remove the kick panel below the steering wheel to get access to the temperature control motor. From there you can see the arm that attaches to the box. Let's hope it is just the arm.
Please disregard previous post - still learning.
Mr. MyVolvoPartsOnline,
Here is a picture of what I believe are the actuator arms on the drivers side looking up with the kick panel removed. These arms look to have a vertical up and down movement. Please let me know if I am looking at the wrong part:
Here is a pic of my automatic climate control:
I am hearing the 'grating' sound when I am manual switching the climate control buttons from the upper, to the middle, to the lower settings, BUT the actuator arms are not moving.
Can you provide any further guidance? Thanks.
Mr. MyVolvoPartsOnline,
Here is a picture of what I believe are the actuator arms on the drivers side looking up with the kick panel removed. These arms look to have a vertical up and down movement. Please let me know if I am looking at the wrong part:
- actuator arms.jpg (47.07 KiB) Viewed 16186 times
- climate control.jpg (41.01 KiB) Viewed 16186 times
Can you provide any further guidance? Thanks.
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thirdstick
- Posts: 8
- Joined: 1 September 2015
- Year and Model: 2003 S60 2.4
- Location: MA - US
This is my first post and I'm having a similar issue. Fan goes strong and air is properly cool, but very little finds its way out of the vents. When manually switching positions from upper, middle, and lower, I hear a slight actuator sound of confusion. Is it the actuator or a sensor? Blend door or air flap actuator? is there a difference? Any tips on how to remove? Pics?
If it's any relevance, my DIM recently died and I reflowed it back to functional status. My air direction issue occurred around the time the DIM started exhibiting symptoms of impending doom.
If it's any relevance, my DIM recently died and I reflowed it back to functional status. My air direction issue occurred around the time the DIM started exhibiting symptoms of impending doom.
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packetfire
- Posts: 234
- Joined: 24 July 2012
- Year and Model: 2010 v50 2.4i
- Location: Manhattan, NYC, NY, USA
- Has thanked: 17 times
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Here is a diagram showing the motors and linkages, and VIDA instructions for testing the motors. Note well that the motors may be fine, and the linkage may be the problem. Plastic parts can break. Best to video each in motion, and yell at the video camera the changed settings to which the motors and linkages should be responding, and then watch the video to see what looks like a problem.
On the driver's side, there is only the motor that controls the blend door for the driver (7 in diagram).
On the passenger side, there is the motor that controls the blend door for the passenger (8), and two other motors, one that controls the distribution of the air (windshield/in-your-face/floor) and another than controls the internal movement of the air to "through the heater core" or "through the A/C". I forget which is specifically which, but they are the complex linkage (3) and the two motors (6) and (9).
VIDA has a test mode that can exercise and (somehow) calibrate the motors. I am pasting a notice from Volvo that documents the use of the feature:
=-=-=-=-=-=-=-=-=-=-=-=-=-=
A/C - Vent Temperature Cycles From Hot to Cold
NO: 87-54
DATE: 11-30-2005
MODEL: S60, S80, V70, XC70, XC90
MY: MY05 MY06
SUBJECT: Temperature Coming Out of the Climate Vents may Start to Cycle from Max Hot Back to Full Cold When Max Hot is Requested.
REFERENCE: VIDA
This Tech-net note supersedes the previous 87-54 dated 11-02-2005. Please update your files.
DESCRIPTION:
If the temperature ***** are turned to max hot, the temperature coming out of the climate vents may start to cycle from max hot back to full cold with a period of 4-15 seconds. No Diagnostic Trouble Codes (DTCs) are stored.
The number of steps on a temperature Damper Motor Module (DMM) may have increased from factory settings, causing the affected DMM to set a "not calibrated" flag to the Climate Control Module (CCM). This causes the climate system to self-calibrate over and over again resulting in the cycling temperature from the vents.
Click the image to open in full size.
VEHICLES AFFECTED:
SERVICE METHOD:
The above mentioned symptom could be solved by a recalibration of the CCM.
For affected vehicles that are still in retailer stock, upgrade the cars during CPS or prior to customer delivery following the service method in VIDA:
1. Erase CCM DTCs.
2. Perform calibration of the CCM as follows:
- Select the "Diagnostics" tab followed by the "Vehicle communication" tab.
- Click the CCM box.
- Select the "Advanced" tab.
- Click "Checking LIN bus".
- Click "No" if no Damper Motor Module (DMM) has been replaced.
- Read and follow the instructions (to the right) carefully and click the VCT2000 symbol.
- Click the "Start" button (left on screen tool).
- Wait until status "Completed" is shown on the screen tool.
- Regardless of DTCs or no DTCs it is now OK to click the "Hide" button to continue.
- Click the "Continue" button to proceed.
3. Perform functional check of the climate system as follows:
- Start engine.
- Turn FAN speed to MAX.
- Select DEMIST and check airflow to windscreen.
- Select FLOOR and check airflow to floor.
- Select VENT and check airflow to dashboard vents.
- Turn to MAX COLD and check cold air from dashboard vents left and right.
- Turn to MAX HOT and check hot air from dashboard vents left and right.
- Turn temperature and fan speed controls to midrange.
- Select Recirculation and check difference in airflow noise in climate system.
- Switch off Recirculation and check difference in airflow noise in climate system.
4. Use VIDA to read CCM DTCs.
5. If CCM DTCs are present repeat step 1 to 4. If CCM DTCs are persistent after the third attempt, perform fault tracing according to VIDA.
On the driver's side, there is only the motor that controls the blend door for the driver (7 in diagram).
On the passenger side, there is the motor that controls the blend door for the passenger (8), and two other motors, one that controls the distribution of the air (windshield/in-your-face/floor) and another than controls the internal movement of the air to "through the heater core" or "through the A/C". I forget which is specifically which, but they are the complex linkage (3) and the two motors (6) and (9).
- climate_door_motors.jpg (84.56 KiB) Viewed 14347 times
=-=-=-=-=-=-=-=-=-=-=-=-=-=
A/C - Vent Temperature Cycles From Hot to Cold
NO: 87-54
DATE: 11-30-2005
MODEL: S60, S80, V70, XC70, XC90
MY: MY05 MY06
SUBJECT: Temperature Coming Out of the Climate Vents may Start to Cycle from Max Hot Back to Full Cold When Max Hot is Requested.
REFERENCE: VIDA
This Tech-net note supersedes the previous 87-54 dated 11-02-2005. Please update your files.
DESCRIPTION:
If the temperature ***** are turned to max hot, the temperature coming out of the climate vents may start to cycle from max hot back to full cold with a period of 4-15 seconds. No Diagnostic Trouble Codes (DTCs) are stored.
The number of steps on a temperature Damper Motor Module (DMM) may have increased from factory settings, causing the affected DMM to set a "not calibrated" flag to the Climate Control Module (CCM). This causes the climate system to self-calibrate over and over again resulting in the cycling temperature from the vents.
Click the image to open in full size.
VEHICLES AFFECTED:
SERVICE METHOD:
The above mentioned symptom could be solved by a recalibration of the CCM.
For affected vehicles that are still in retailer stock, upgrade the cars during CPS or prior to customer delivery following the service method in VIDA:
1. Erase CCM DTCs.
2. Perform calibration of the CCM as follows:
- Select the "Diagnostics" tab followed by the "Vehicle communication" tab.
- Click the CCM box.
- Select the "Advanced" tab.
- Click "Checking LIN bus".
- Click "No" if no Damper Motor Module (DMM) has been replaced.
- Read and follow the instructions (to the right) carefully and click the VCT2000 symbol.
- Click the "Start" button (left on screen tool).
- Wait until status "Completed" is shown on the screen tool.
- Regardless of DTCs or no DTCs it is now OK to click the "Hide" button to continue.
- Click the "Continue" button to proceed.
3. Perform functional check of the climate system as follows:
- Start engine.
- Turn FAN speed to MAX.
- Select DEMIST and check airflow to windscreen.
- Select FLOOR and check airflow to floor.
- Select VENT and check airflow to dashboard vents.
- Turn to MAX COLD and check cold air from dashboard vents left and right.
- Turn to MAX HOT and check hot air from dashboard vents left and right.
- Turn temperature and fan speed controls to midrange.
- Select Recirculation and check difference in airflow noise in climate system.
- Switch off Recirculation and check difference in airflow noise in climate system.
4. Use VIDA to read CCM DTCs.
5. If CCM DTCs are present repeat step 1 to 4. If CCM DTCs are persistent after the third attempt, perform fault tracing according to VIDA.
- VIDA_heat_motors1.jpg (53.19 KiB) Viewed 14347 times
1982 240DL: Drove it 32 years and 1.5 million miles (sold, even still had mint leather!)
2001 v70 2.4T: The most expensive $1500 car I ever bought ("Volvo Turbo" - what an oxymoron!) (sold)
2004 v70: Far less fatally-flawed v70 - It served well (sold)
2010 v50: Smaller, slightly sportier wagon. Its got a spoiler, so I upgraded with sway bars!
2001 v70 2.4T: The most expensive $1500 car I ever bought ("Volvo Turbo" - what an oxymoron!) (sold)
2004 v70: Far less fatally-flawed v70 - It served well (sold)
2010 v50: Smaller, slightly sportier wagon. Its got a spoiler, so I upgraded with sway bars!
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oragex
- Posts: 5347
- Joined: 24 May 2013
- Year and Model: S60 2003
- Location: Canada
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- Contact:
icetab wrote:thirdstick. Did you resolve this issue? My V70 is having a similar issue. There's cold are but very little is moving through the vents.
do the a/c piping inside the engine bay look frozen?
Several Volvo Repair Videos https://www.youtube.com/playlist?list=P ... s0FSVSOT_c
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