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GSD



Member Since: 18 Dec 2012
Location: UK
Posts: 38
Blower Fan Problem
Hi everyone,
All has been going well with my Defender. However this morning I was driving around with the aircon on and the blower set to 3, after about 10 mins the cab was nice and cool so I set the blower to 2, then after 5 mins to 1. As I drove on, the blower stopped of its own accord.

The air con definitely still works as long as the blower is set to 2 or 3. If the blower is switched off, and I press the aircon switch on, the aircon telltale light comes on and I can hear a change in the engine noise and revs will reduce but there will be no blower fan.

With the aircon off, the blower will only work on setting 2 or 3.

So, has anyone had this before? Is it something that can be fixed relatively easily?

Thanks for any help
Post #253521 24th Jul 2013 7:11pm
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steve E



Member Since: 06 Mar 2011
Location: Tenby
Posts: 2073
Wales 
If the air con works and the normal air heating works on
Any setting your doing well Thumbs Up
Just enjoy the air con. There's no fix as land rover have designed
It that way.

Steve
Post #253522 24th Jul 2013 7:20pm
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GSD



Member Since: 18 Dec 2012
Location: UK
Posts: 38
Rolling with laughter

Thanks Steve,

It all worked perfectly for the last 4 years. Aircon worked on blower setting 1, 2, or 3.

My ' Rovers been fantastic so far,in fact my roof doesn't even leak. I hope my baby isn't starting to fall apart.
Post #253526 24th Jul 2013 7:41pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 
Probably the resistors pack Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

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Post #253527 24th Jul 2013 7:45pm
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Lou Sparts



Member Since: 15 Apr 2012
Location: Kent
Posts: 1501
United Kingdom 2005 Defender 90 Td5 XS CSW Zambezi Silver
I would think it would be the switch that would be the problem,if it only worked on the highest setting then the blower motor resistor would be at fault. 2005 Td5 90 XS

Steve
Post #253528 24th Jul 2013 7:46pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 
The aircon by-pass the switch Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

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Post #253529 24th Jul 2013 7:47pm
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steve E



Member Since: 06 Mar 2011
Location: Tenby
Posts: 2073
Wales 
GSD
You got to laugh Rolling with laughter
My new one is just the same as my old one except i paid
Twice as much for it Rolling with laughter

I hope you can sort this problem out ASAP.

Steve
Post #253530 24th Jul 2013 7:54pm
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GSD



Member Since: 18 Dec 2012
Location: UK
Posts: 38
So its probably a case of a new switch then? Could be worse.

Thanks for the replies.
Post #253531 24th Jul 2013 7:56pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 

Click image to enlarge


Click image to enlarge

if the 0,45 ohm resistor is broken, see the electrical scheme, the speed 1 doesn't work, the 2 and 3 will work!!!

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green  Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #253532 24th Jul 2013 8:01pm
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GSD



Member Since: 18 Dec 2012
Location: UK
Posts: 38
Ah brilliant diagram!

I've never had to get in to the heater system before. Is it a hard job? I've got the tools and I learn as I go along. Is it dashboard out?

Does anyone have the part number to hand for the resister to hand.

Thanks
Post #253533 24th Jul 2013 8:11pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 
two screws, take-off the old one, put in the new one, easy job

before buying the new resistor, check the old one with a multimeter.....

for check the resistor 1, 0,45 ohm measure the resistance from pin1 and pin2

for check the resistor 2, 0,55 ohm measure the resistance from pin2 and pin3


Click image to enlarge

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated Mr. Green  Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License

Last edited by dgardel on 24th Jul 2013 8:33pm. Edited 2 times in total
Post #253536 24th Jul 2013 8:21pm
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WelshGas



Member Since: 01 Oct 2010
Location: Vale of Glamorgan
Posts: 935
Wales 2010 Defender 90 Puma 2.4 XS CSW Santorini Black
Sounds as if the resister pack on the heater fan blower has partly failed. Speed 3 is full current whereas speed 2 & 3 use a resistance to cut the current and give a slower speed. The resistance pack is found on the side of the heater between the electrical connector and the blower assembly and is held on by 2 screws. Thumbs Up
Blower is under the bonnet , passenger side on RHD vehicles. LANDYWATCH

Neighbourhood Watch for Land Rover Owners

http://www.landywatch.co.uk/smf2/index.php
Post #253538 24th Jul 2013 8:28pm
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GSD



Member Since: 18 Dec 2012
Location: UK
Posts: 38
'Very Happy'

Absolutely fantastic.

Thats my next to do. I love this site.

Thanks for all the replies, and the very helpfull diagrams. Much appreciated. Bow down

Last edited by GSD on 24th Jul 2013 9:00pm. Edited 1 time in total
Post #253541 24th Jul 2013 8:53pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586
Italy 
you are welcome!

Outback Engineering Service over the top!!!! Rolling with laughter Rolling with laughter Rolling with laughter Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #253545 24th Jul 2013 8:59pm
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bear100



Member Since: 22 Mar 2010
Location: South Wales
Posts: 1913
Wales 2010 Defender 110 Puma 2.4 USW Santorini Black
If I put my air con on the bower automatically starts on 1, with the slider in the off position Thumbs Up 2016 Range Rover Autobiography 4.4 TDV8
2010 110 XS Utility 2.4TDCI
2010 Range Rover Sport TDV8 (gone)
2007 Discovery HSE TDV6 (gone)
1993 110 csw 200 tdi (gone)
1994 90 HT 300 tdi (gone)
1994 discovery 300tdi (gone)
90 hybrid 3.5 v8 (gone)
Range rover bobtail 3.5 v8 (gone)
Post #253556 24th Jul 2013 9:26pm
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