S40 V40: - 2001, fan cuts out almost every time I drive...

Jak Blue · Oct 17th, 2016, 18:08

Hi,

Hope someone can shed some light on my problem. Cabin fan cuts out almost every time I drive. Sometimes only a few seconds after switching on the fan blower, other times it runs fine for over 60 minutes. Makes no difference what temperature it's set to - AC or high heat. Mechanic looked and said he thinks it's the blower motor, so I got a second hand from Traynors and replaced old one. Made no difference. Thought maybe it's the resistor... so I purchased and installed a second hand OEM blower motor speed resistor. Made no difference...

What else could it be that makes the fan randomly cut out? Is there another sensor I should be looking at? Appreciate any help. Desperate to get it sorted before winter kicks in. Need the heater to work!!

thanks,
Jak

martin93 · Oct 17th, 2016, 23:05

Hi Jak

Does the car have climate control? If so, I'd be hedging my bets on the climate control module since you've tried everything else. And I'm pretty sure that post 2001 cars even without climate control also have a control module for the fan and heater/distribution servos.

Martin

Jebus · Oct 17th, 2016, 23:07

A lot will depend on if you have climate control or standard heating, climate there are quite a few more issues areas that could cause an issue, standard heating not so much.

Jak Blue · Oct 18th, 2016, 11:37

Thanks Martin and Jebus for responding - much appreciated!

Looking at photo I took of my Heating/Ventilation control panel compared to this version I found on internet. Mine is very basic. Does not feature the heated seats, DSA or temperature sensor? not 100% sure if that is what the 3 black horizontal openings top right are...

Would you say I have a standard heating system. It's not an electronic climate control system?

See images attached.

thanks,
Jak

ITSv40 · Oct 18th, 2016, 12:00

Yes, that is bog standard system, nothing fancy, not climate control.

pierremcalpine · Oct 18th, 2016, 13:19

some have reported success by spinning each dial back and forth rapidly about 20x per dial. This cleans up some of the oxidation on the contacts in behind each dial.

You may want to try switching out the panel next. Otherwise, sounds like a short somewhere.

v40alex · Oct 19th, 2016, 00:54

It does sound like the fan speed switch, do what Pierre suggests - it helps to get a shoelace or similar, wrap it round and use to move the switch back and forwards quickly. Ten times should be enough

Jak Blue · Oct 24th, 2016, 12:18

Hi guys - I did the spinning dials using string x 20 times. There is definitely an improvement but still cuts out after a while. Will check with Traynors for new panel. Thanks for all the input - appreciated!

Oct 17th, 2016, 18:08	#1
Jak Blue New Member Last Online: Oct 24th, 2016 12:18 Join Date: Oct 2016 Location: Manorhamilton	2001, fan cuts out almost every time I drive... Hi, Hope someone can shed some light on my problem. Cabin fan cuts out almost every time I drive. Sometimes only a few seconds after switching on the fan blower, other times it runs fine for over 60 minutes. Makes no difference what temperature it's set to - AC or high heat. Mechanic looked and said he thinks it's the blower motor, so I got a second hand from Traynors and replaced old one. Made no difference. Thought maybe it's the resistor... so I purchased and installed a second hand OEM blower motor speed resistor. Made no difference... What else could it be that makes the fan randomly cut out? Is there another sensor I should be looking at? Appreciate any help. Desperate to get it sorted before winter kicks in. Need the heater to work!! thanks, Jak Last edited by Jak Blue; Oct 17th, 2016 at 21:01. Reason: spelling

Oct 17th, 2016, 23:07	#3
Jebus VOC Member Last Online: Aug 13th, 2023 17:49 Join Date: Aug 2016 Location: Aberdeen	A lot will depend on if you have climate control or standard heating, climate there are quite a few more issues areas that could cause an issue, standard heating not so much. __________________ 1992 2.0 SE Turbo Wentworth, now with b230ft & M90 2005 S60 2.0T the baby T5

Oct 18th, 2016, 12:00	#5
ITSv40 VOC Member Last Online: Yesterday 22:50 Join Date: Mar 2008 Location: Northampton	Yes, that is bog standard system, nothing fancy, not climate control. __________________ 2001 V40 2.0lt Sport lux - Daily Driver. 174k miles. 2003 C70 2.4 GT Convertible - Garage Queen. 65k miles. http://www.neptuno6benagil.com

Oct 18th, 2016, 13:19	#6
pierremcalpine Premier Member Last Online: Jan 3rd, 2024 14:43 Join Date: Feb 2012 Location: Toronto Canada	some have reported success by spinning each dial back and forth rapidly about 20x per dial. This cleans up some of the oxidation on the contacts in behind each dial. You may want to try switching out the panel next. Otherwise, sounds like a short somewhere. __________________ 2003 V40 1.9T B4204T4, 197,000miles (sold but alive!), 2004 S60 2.5T, 160,000miles, 2010 V70 3.2, 125,000miles, 2002 V70XC 2.4, 175,000miles Click here for my x40 and V70 P3 repair guides

Oct 19th, 2016, 00:54	#7
v40alex I do like a V40 Last Online: Dec 1st, 2018 19:03 Join Date: Oct 2013 Location: North Surrey	It does sound like the fan speed switch, do what Pierre suggests - it helps to get a shoelace or similar, wrap it round and use to move the switch back and forwards quickly. Ten times should be enough __________________ Current: '02 V40 1.9TD, '02 V40 T4 Previous: '00 V40 1.9TD, '99 V40 1.9TD, '97 V40 2.0CDi, '87 240DL

Oct 17th, 2016, 23:05	#2
martin93 Member Last Online: Aug 1st, 2019 19:17 Join Date: Aug 2013 Location: Dorset	Hi Jak Does the car have climate control? If so, I'd be hedging my bets on the climate control module since you've tried everything else. And I'm pretty sure that post 2001 cars even without climate control also have a control module for the fan and heater/distribution servos. Martin

Oct 24th, 2016, 12:18	#8
Jak Blue New Member Last Online: Oct 24th, 2016 12:18 Join Date: Oct 2016 Location: Manorhamilton	Hi guys - I did the spinning dials using string x 20 times. There is definitely an improvement but still cuts out after a while. Will check with Traynors for new panel. Thanks for all the input - appreciated!

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