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Fan on Climate Control stays on

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Mike Langlois
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Fan on Climate Control stays on

Post by Mike Langlois »

On my 2002 V70 X/C, I just noted that the small fan on the rear of the Climate Control unit is staying on. While trying to track down the source of a whine in my aftermarket radio, I noted that the small fan on the rear of the Climate Control unit is staying on. It has done this twice, even after the car sat for a day or two. First time, I could hear the fan running after the climate control unit was removed from the console; blew on it once and it stopped (who knows?); a week later the fan was on again after the car sat for a day or two. I am beginning to think this issue is related to the radio whine; they sound similar and they started at about the same time. Battery went dead a while back and I think the fan was on and draining it at the time.
The car is not a daily driver and is kept in excellent condition. 170,000 miles, with practically everything renewed/replaced, Any thoughts as to why the fan would stay on? I have another 2002 V70 here for parts and can exchange parts to trouble shoot if necessary; also get the feeling I should not mess with the Climate Control module with out some guidance. Mike
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darrylrobert
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Re: Fan on Climate Control stays on

Post by darrylrobert »

If you look closely there should be a what looks like something stuck in there (temp sensor) between the fan and the grille. I first tried to dig it out thinking it was dirt (oops), since you blew on it and the fan stopped you can try using a vacuum to clean grille or take it apart like i have and given it a good clean and inspection. I noticed mine staying on but not more than a few minutes after engine shutdown.

This maybe the temp sensor for the cabin ambient temp reading, do you have something OBD2 to check this value ?
temp sensor.jpg
1981 260 GLE converted to 240 M46 after auto box failure
1987 740t auto converted to M47
1997 V70t5 auto converted to M56
1998 V70 factory M56 (parts car)
2001 XC70 factory M58
2002 XC70 auto (parts car)
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Mike Langlois
Posts: 114
Joined: Tue Apr 22, 2014 10:00 pm
Year and Model: 2002 V70 & V70 XC
Location: Santa Ana, CA, USA
Has thanked: 25 times
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Re: Fan on Climate Control stays on

Post by Mike Langlois »

I shall try this.
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