Member Since: 21 Nov 2014
Location: Northumberland
Posts: 67
How to turn fuel heater on
I have a disco 3 tdv6 s model 2005, how do I activate or turn the fuel burner on. There is no buttons for it but it definitely has 1
9th Oct 2015 5:57 pm
armalites
Member Since: 17 Aug 2013
Location: Herefordshire
Posts: 1918
You can't turn it on unless you have a specific diagnostic tool or a Webasto controller. It will auto start once the outside temperature is below 6 degrees as long as fuel in the tank is not low or engine is at full temperatureIID PRO
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9th Oct 2015 6:01 pm
mickd250
Member Since: 21 Nov 2014
Location: Northumberland
Posts: 67
Ah right, it's been down to 4 degrees last couple mornings never noticed it come on, well the light has not came on for it
9th Oct 2015 6:08 pm
geoffsnook
Member Since: 13 Jun 2014
Location: south wales
Posts: 3170
No light you may get a bit of smoke from nearside front by the wheel and if your close then you may smell a bit of burning diesel Discovery 3 se gone
Range rover sport supercharged here:)
If you need to reset your FBH in the first instance try pulling the fuze it's under the bonnet in the battery box, IIRC it is number 28.
NJSS
Edited to add the vital words "the fuze" Am I Gammon or Woke ? - I neither know nor care.
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Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
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Last edited by NJSS on 9th Oct 2015 8:23 pm. Edited 1 time in total
9th Oct 2015 6:22 pm
mickd250
Member Since: 21 Nov 2014
Location: Northumberland
Posts: 67
Is that right that the FBH will not operate if the Air Con is off??
I am sure my FBH has worked over the years in the Winter with the Air Con off.
I rarely have the Air Con switched on in the Winter unless to demist when it is peeing with rain and we are all wet causing windows to mist up.------------------------------
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Huge Permagrin
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
It will operate if the aircon is either on or off. It is only when the HEVAC panel is turned completely off will the FBH fail to fire, as it takes inputs from the HEVAC system - including the outside air temp.
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Member Since: 20 Sep 2005
Location: Home and Happy
Posts: 6917
Exhaust pipe is nearside at the front underneath - small pipe about 1/2 inch diameter
Dont touch it - gets very hot when the FBH is fired up but you should be able to see / smell smoke
13th Oct 2015 7:20 am
Where's_the_finesse
Member Since: 05 Jul 2015
Location: Ayrshire
Posts: 157
Yip, agree with what's been said already.
I pulled the fuse the other day and after reinstalling, the heater fired up. First thing you'll notice is a smell like paraffin as the diesel is burned.
Exhaust is down below, and you should be able to see hot gas exiting.
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