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Heater Problem
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RedditchJay
 


Member Since: 30 Jul 2016
Location: Redditch
Posts: 5

England 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3
Heater Problem

All

HELP !!!

Heater panel has some items that work, the lights around the heater speed control light up BUT

No power to electric heated seats

No blower motor power

No power to heated front screen

No power to heater rear screen

I have checked what fuses I can under the bonnet {ie 30amp for seats}and all appear fine

Are these all linked to one relay ???

cheers  
Post #168631230th Jul 2016 5:25 pm
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RedditchJay
 


Member Since: 30 Jul 2016
Location: Redditch
Posts: 5

England 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

Update

Got all the lights working ,heated seats / screen / etc the engine needed to be running for some reason or perhaps I only had the ignition key at 1st stage

Blower motor is the only issue

Has lights on the speed switch BUT no blower, is there a relay for the blower ?

regards  
Post #168632330th Jul 2016 6:01 pm
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DG
Site Moderator 


Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50934

Wales 

Hi & welcome ... I'm sure someone will be along to advise in the meantime please only post the same subject in one forum category Thumbs Up 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021  
Post #168633630th Jul 2016 6:45 pm
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1517

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

Does the blower work if you turn it to the highest speed setting?  
Post #168633930th Jul 2016 6:56 pm
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RedditchJay
 


Member Since: 30 Jul 2016
Location: Redditch
Posts: 5

England 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

Hiya

No blower at all..... for a while it went hit n miss.... some i thought i was the switch.... now though nothing at all...

The heater switch has all the lights as though it has power etc etc

Is there a manual way to test the heater ?  
Post #168635530th Jul 2016 8:00 pm
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1517

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

I think there might be a re-set procedure for the 'HEVAC' system (Heating, Ventilation, Air Conditioning)


A search may find it, may be worth trying a hard re-set as well.  
Post #168638630th Jul 2016 9:50 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10364

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

THere is a relay for the motor. It is fitted under the bonnet in the relay box by the battery. R16

There is also a 40A fuse


You could try swapping the relay with the relay for the rear motor. R10. The rear relay is fitted regardless of whether you have a rear heater.

The relay is in the same box  
Post #168640030th Jul 2016 10:15 pm
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RedditchJay
 


Member Since: 30 Jul 2016
Location: Redditch
Posts: 5

England 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

MANY THANKS.....good shout will try that tomorrow as a starter point  
Post #168681431st Jul 2016 11:42 pm
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RedditchJay
 


Member Since: 30 Jul 2016
Location: Redditch
Posts: 5

England 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

YEP........ top man..... swapped over and the blower works.... I have found a 30am,p relay in the garage for today and will get a 40amp replacement tomorrow

Assuming I dont buy a genuine part do I need a resistor relay or just ny 40amp / 4 pin relay ?  
Post #16875552nd Aug 2016 8:15 pm
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Dd80blue
 


Member Since: 21 Aug 2017
Location: Sittingbourne
Posts: 15

United Kingdom 2005 Discovery 3 TDV6 HSE Manual Tonga GreenDiscovery 3

Hi RedditchJay

I'm in the same boat as you.

Where did you get the relay from in the end?  
Post #185624411th Sep 2017 6:46 am
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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

Try a search I think the under bonnet fuse box has a relay for the rear air con no matter whether the car has rear a/c fitted or not, and the posts Ive read say just use that one.  
Post #185624811th Sep 2017 7:04 am
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