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No hot air from floor vent

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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hentmanmd
Posts: 3
Joined: 14 December 2009
Year and Model: 1997 850T
Location: usa

No hot air from floor vent

Post by hentmanmd »

Its winter time now, and although we get good hot air from the defroster vent and the dashboard vents, there is no hot air coming from the floor vents, so our feet get very cold. I cannot get air to come out of the floor vents no matter where I place the center selector dial.

What's going wrong? Pls. help

Howard

Ozark Lee
MVS Moderator
Posts: 14798
Joined: 7 September 2006
Year and Model: Many Volvos
Location: USA Midwest
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Post by Ozark Lee »

Welcome to MVS,

We need to start at the beginning, do you have an electronic climate control unit or a manual climate control unit? The electronic unit has the temperature marked in degrees whereas the manual unit has a graduated width series of red bars to to mark the heat setting.

The problem is the same but the way to diagnose and fix it is different between the two different styles.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

FCPEURO
Posts: 3002
Joined: 17 June 2009
Year and Model: 2006 XC90 V8
Location: Milford, CT
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Post by FCPEURO »

It sounds like the servo motors are not turning enough to get the floor vents to open. You can check them out by removing the plastic by the foot well. Do you know if just the drivers side is not working or are both sides not working?

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