heater blowing cold air intermittently

Post by **Tval** » 03 May 2012, 16:34

2006 S60 when heater is turned on hot air blows, then cold air, then hot air, this goes on continiously. Altinating hot and cold air

Post by **DGM** » 04 May 2012, 14:45

Sometimes fluff accumulates behind the grill where is located the cabin temperature sensor. This is the small grill that you see on the front panel of the climate control. Take your shop-vac and vaccum the fluff behind the opening.

The sensing device may be fouled by the debris (the clear pin head under the grill). Some had reported success with this method.

Other than this, you can have the car scanned by VIDA to see if you have fault codes. Also software updates may be available at the dealer.

: CIMG2106m.JPG (65.85 KiB) Viewed 2993 times

and my car would certainly benefit of a spring clean up

Post by **MoVolvos** » 04 May 2012, 19:43

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Thanks DGM,

There is at least two more persons that knows what that vent is for!

Blessings,
BKM
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