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DISCO3.CO.UK > Technical (D3)

Delay in heating/ cooling fan coming on after start up
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Rebiam
 


Member Since: 31 Oct 2016
Location: Chessington
Posts: 10

England 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3
Delay in heating/ cooling fan coming on after start up

Hi All - my 05 D3 HSE has developed a delay in the fan starting when in auto mode. It can take 5 mins or more for the car to register the interior temperature and respond accordingly. If I use the defrost programme everything works immediately as does switching the heating to manual. There is no problem with regulating temperature once the system is going - it just takes a while to start. It’s the same for max temp as it is for minimum which used to override the sensor and blow out very hot or very cold on demand. Any ideas? Thanks  
Post #190493822nd Jan 2018 5:39 pm
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tayaste
 


Member Since: 15 May 2013
Location: Chester
Posts: 7633

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

All my cars when in auto will only start the fans when engine temp able to bring cabin upto required temp. If I set the temp at 22 and it’s -3 outside, I don’t want the fans blowing freezing cold air into the cabin until it’s warmed.
Sticking the hvac onto windscreen will bring the fans on at any temp to help dehumidify the screen.   
Post #190506622nd Jan 2018 9:03 pm
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Ja92mie
 


Member Since: 16 Sep 2014
Location: Newquay
Posts: 1259

United Kingdom 2005 Discovery 3 TDV6 SE Manual Java BlackDiscovery 3

Same as mine. I think it’s a good design! Why would you want cold air blowing on you?  
Post #190507122nd Jan 2018 9:05 pm
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Gareth
Site Moderator 


Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26708

United Kingdom 

As far as I know its normal. My D4 is the same, as have been all my previous D3’s.  
Post #190507222nd Jan 2018 9:05 pm
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Ray Clayton
 


Member Since: 15 Aug 2014
Location: Ilkeston, Derbyshire
Posts: 422

England 2012 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

Mines same, does not blow until it can warm the cabin up.

Thumbs Up Regards
Ray
__________________
2012 Discovery 4 XS
Fuji White  
Post #190508422nd Jan 2018 9:14 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Mines the same which can be annoying on a damp morning as you have to hit the screen hurricane button Mr. Green  
Post #190514222nd Jan 2018 10:16 pm
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