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Old 21st April 2017, 18:11   #16
QuestionMark
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LHD Rover 75 Tourer 2.0 CDT Conn auto 2002

Join Date: Apr 2014
Location: By a fjord
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Originally Posted by SD1too View Post
It's more complicated than that, and no-one has succeeded in trying to work out exactly how the decisions are made in 'Auto' mode.
Wow!

Quote:
Originally Posted by SD1too View Post
If I were you I would carry out the checks suggested to see if you can find a fault with your blower (ventilation fan) control.
I'll definitely do that.

Quote:
Originally Posted by SD1too View Post
Not necessarily. It also depends upon the interior temperature of the car and there are also sensors on the heater matrix and air conditioning evaporator I seem to remember.
I was kind of supposing a perfect scenario where all of those were the same as the ambient temperature, but I should've made that clearer.*

Quote:
Originally Posted by SD1too View Post
Note however that in cold ambient temperatures when you have selected heating, the blower (or ventilation fan) will notoperate until the coolant reaches a certain temperature. Is this what you're experiencing?
*Which brings me back to this The reason I was asking in the first place is that every setting has been above ambient temperature in Norway since october anyway, so I'm always using heating (unless the car is of a different opinion). And like I've said before the blower occasionally works immediately on cold days with a cold engine too.
Are you sure about the coolant thing though? I can't remember being in a car where the blower (the demist function in particular) doesn't work immediately upon starting the car, and on good days I don't think mine doesn't either.

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Originally Posted by QuestionMark View Post
I prefer to investigate other options before checking/refilling the refrigerant, because that'll probably be £100 I live in Norway you see...
I thought £100 was a bit on the low side, but I didn't want to exaggerate. Turns out, it's in the £200-300 range How are British prices?
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