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Heater damper location

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Krikkit
Posts: 15
Joined: 07 May 2005, 13:00
Year and Model:
Location: Nova Scotia

Post by Krikkit »

[b]'97 850 non-turbo, with manual heater controls.
[/b]

The damper that directs airflow to 'defrost', 'floor', 'dash vents' sticks if left in the defrost position for a period of time.

When I start up the car after it sits overnight with the airflow selector in the 'defrost' position, the selector knob won't turn. After the engine warms up and some hot air flows through the ductwork it frees up and will work nicely.
I believe the damper is sticking because of wear, my theory is that once the plastic warms up it expands enough to work properly.

question is: where is the damper flap located? I've looked through the repair data base, nothing there references the damper flap. Most discussions I see in the forums are in reference to ECC systems and the damper control motors.
mine is the manual, mechanical, cable controlled system.

Many thanks in advance for any insight.
Over the past 7 years that I've owned my '97 MVF has been a hugh help with problems I've had (including but not limited to: ABS module rebuild with Vince, A/C compressor shim fix, odometer gear replacement, glove box light staying on, glove box latch fix, steering joint replacement)

Kevin
Nova Scotia
Canada
1997 Volvo 850 wagon
2.4 liter, non-turbo
322,000 Km

vjaneczko
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Post by vjaneczko »

The damper should be in the same location on your MCC system as the ECC. You can see it if you remove the glovebox, just to the left of the blower. If you need to dink with it, then I believe you have to remove the entire dash!
"He attacked everything in life with a mix of extraordinary genius and naive incompetence, and it was often difficult to tell which was which." - Douglas Adams

1997 855 GLT - R.I.P.
2006 S60R - For ME!

Ozark Lee
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Post by Ozark Lee »

As I recall, the mode damper lever damper is on the driver's side on the MCC units. You can get to it by removing the lower dash panel and then the stiffener behind the carpet.. It will be the upper lever. Make sure the cable sheath anchors are firmly seated.

...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

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