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HEATER BLOWER PROBLEM IN 2002 Volvo S40 TURBO

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.
1996 - 2004 S40
1996 - 2004 V40
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TONYGIAMPA
Posts: 1
Joined: Sun Mar 22, 2009 6:33 pm
Year and Model: S40 ,2002
Location: Ambler, PA

HEATER BLOWER PROBLEM IN 2002 Volvo S40 TURBO

Post by TONYGIAMPA » Sun Mar 22, 2009 7:05 pm

My heater blower in my S40 turbo blows intermitently from high to low. Doesn't matter what the temperature knob is set at. Low to high. High to low. Back and forth. Really annoying!
My mechanic replaced the relay because at one point the blower would not turn off. Then it just stoped, The relay replacement got the blower working again but did not fix the blower from blowing high and low. He told the next step was to replace the knob that regulates the speed. He also informed that the whole panel with the three knobs(speed,temperature,direction) was an integrated system and the whole thing needed to be replaced. I'm a little hesitant and wondering if there might be some other resolution to this problem as the price just for the integrated panel is $800.00 not including labor. Is there a cheaper fix for this problem?

Tony G.

MadeInJapan
MVS Moderator
Posts: 13274
Joined: Thu Mar 31, 2005 7:14 am
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
United States of America

Re: HEATER BLOWER PROBLEM IN 2002 Volvo S40 TURBO

Post by MadeInJapan » Sun Mar 22, 2009 7:23 pm

Hey Tony G.
Welcome to MVS.
I'm not sure about your unit in your car.
You might get an answer here but maybe not.
If not, then try the same question over on www.s40concepts.net/newforum/
Regards,
MIJ
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo

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billofdurham
MVS Moderator
Posts: 6508
Joined: Thu Feb 02, 2006 3:31 pm
Year and Model: 855, 1995
Location: Durham, England

Re: HEATER BLOWER PROBLEM IN 2002 Volvo S40 TURBO

Post by billofdurham » Mon Mar 23, 2009 1:51 pm

This is usually the heater resistor starting to break down and is a common problem on that age S/V40.

As MIJ gave you one link to S40concepts I shall try to go one better and give you the link to the repair: http://s40concepts.net/forum/index.php? ... 27061b0bb7
One of the causes of the failure, apparently, is allowing the cabin filter to become choked making the fan work harder.

Bill.
Work was good - retirement is better.

1996 850GLT 2.5 20v Estate Manual.
1995 Peugeot Boxer 2.5Tdi Autosleeper.
Previously:
1984 244DL, Manual, Beige.
1987 744GLE, Manual, Green.
1991 960 3.0 24v, Auto, Silver.
1994 940T Wentworth, Auto, Blue.

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