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FBH starts but wont stay running - UPDATED Arrrrgggggghhhhh
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3
FBH starts but wont stay running - UPDATED Arrrrgggggghhhhh

After a non start a couple of weeks ago and finding out that all my glowplugs are dead (A job for warmer weather), it was time to get an FBH remote and make sure the FBH was working... Which it wasn't...

Altox fitted and all setup fine, works via txt or the app no problems...

Bought the diagnostics cable off here, connected it up with no problems, all components appear to work fine in their individual tests, fuel pump seems to be pumping the correct amount of fuel...

Start the parking heater and it makes all the sounds it should, pre start fan checks, then goes to run, you can hear the burner running, lots of exhaust smoke, and then cuts out after a couple of seconds... This is all it will do...

I ran 3 tests on the video below:

1st as is, i noticed the battery was dipping low (time to order a replacement me thinks).

2nd attempt was with the engine running so good voltage.

3rd Attempt was introducing air into the intake without the intake pipe attached.

No joy on any of them... All 3 attempts produced a 'Failed to start' fault and then locked the FBH out..

Any further ideas before the inevitable strip down?

 

Last edited by PaulJC on 12th Jan 2018 8:44 pm. Edited 1 time in total 
Post #189547430th Dec 2017 4:21 pm
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

Anyone? lol Whistle

Right, strip down and clean it is then... I'll get a water elbow ordered so i can take my time with it once out...
  
Post #189568631st Dec 2017 9:48 am
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Narpy
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Member Since: 18 Jul 2011
Location: Stockport
Posts: 6385

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

You can tweak the CO2 settings and it should run.
There's a post here somewhere showing how.
Link to follow.
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
Your light eclipsed the moon tonight. 
 
Post #189569531st Dec 2017 10:04 am
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

Unfortunately the software doesnt allow them to be changed until it is up and running properly Crying or Very sad
  
Post #189569831st Dec 2017 10:05 am
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Narpy
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Member Since: 18 Jul 2011
Location: Stockport
Posts: 6385

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Here's the link anyway: https://www.disco3.co.uk/forum/i-fixed-webasto-fbh-105563.html

Clear the faults and keep blowing air into the thing, hopefully it'll run and you can tinker with it. Thumbs Up
Failing that, it's a strip and clean job. Wink
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
Your light eclipsed the moon tonight. 
 
Post #189570231st Dec 2017 10:10 am
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

Awesome, thank you... I might give it a try upping the air pressure a bit...

I guess there is a possibility it is just too coked up to run once the glow plug goes out, we shall see...
  
Post #189570431st Dec 2017 10:11 am
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Narpy
Site Supporter 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 6385

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Strip and clean details here: https://www.disco3.co.uk/forum/robbies-gui...36766.html. Thumbs Up
You could also try a little Easy Start too. Some posters have had success with that. Thumbs Up
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
Your light eclipsed the moon tonight. 
 
Post #189570531st Dec 2017 10:14 am
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jonp
 


Member Since: 09 Jan 2010
Location: BARNARD CASTLE , Co Durham
Posts: 73

England 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Hi

Try a software reset, ie take out fuse 28, in box near battery, for a few minutes and try to run again.

Keep doing it and eventually it will fire up with webasto software and run constantly. You can try squirting a bit of damp start into air intake but it is a bit risky re back fires etc. Your problem could be that the FBH is burning but the Flame Detector is not seeing a flame so is aborting the cycle. Do a fuel pump prime and a test the fuel pump before starting it this is almost like using a choke on an older engine. You will get lots of smoke.

It took me three weekends of messing about like this to get it to run and when it does let it burn as long as possible.

You are looking for a red light on the FD "bulb2 in the webasto software

Regards

Jonathan
  
Post #18965112nd Jan 2018 11:47 am
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mike23118
 


Member Since: 01 Oct 2010
Location: North Wales
Posts: 827

Wales 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

Take the fuel pipe off where it connects to the fbh and see what fuel if any is coming out.
If no fuel, remove fuel pipe from back of pump (underneath car on top of cross member under drivers seat have to a remove cover) and blow down it, you should here it bubling in tank. mine was blocked, but good blow cleared it, its been ok ever since ............well until this year Big Cry
  
Post #18965832nd Jan 2018 3:34 pm
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

I have already tried running it after a prime, fuel flow is good, tried a little squirt of easy start, it backfired a touch but still refused to start...

I have now ordered the bits to replace it in the water circuit and i'm going to rebuild/clean it while i have a week off work Smile
  
Post #18983986th Jan 2018 8:03 pm
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

So, finally got to look at the FBH today, still doing the same thing so out it came...

Opened it up and it was filthy, massive lumps of soot/carbon and general filth inside Shocked




Thought to myself 'no wonder this cant stay alight!' and gave it a good clean Mr. Green
Didnt take the top off the burner as was losing daylight but cleaned up the rest and removed the glow plug to find it spotless and put it back in...




Annnnnnnnd it still doesnt work lol

Component diagnosis tests through the Webasto software shows all individual parts working just fine, didnt run the fuel pump so as not to flood it...

FBH fires up fine, runs for a very short period of time and then cuts out, managed this another 4/5 times sometimes trying to introduce additional air and still nothing, but now it's just flagging up a 'glow plug short' code and wont start at all...

So, do I replace just the burner, try a second hand unit, or fork out for a replacement? :/
 Maya Gold MY05 HSE, Duratracs, RLD Sump Guard, RLD CB Aerial Mount/AE6110, RLD Spare Anti Theft, Altox FBH Remote, T-Maxx Split Charging System, Rear Power Panel, Rock Sliders...

FBH Cable available for borrowing to pay something back for all the help... 
 
Post #190070312th Jan 2018 8:52 pm
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Narpy
Site Supporter 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 6385

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Have you got an FBH controller installed or are you just relying on the Webasto software to fire it up?
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
Your light eclipsed the moon tonight. 
 
Post #190073512th Jan 2018 11:49 pm
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PaulJC
 


Member Since: 07 Mar 2015
Location: Herts / Essex
Posts: 184

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Maya GoldDiscovery 3

Yeah I have an altox fitted as well...

All I’m getting out of it this morning is ‘heater not responding to commands’
 Maya Gold MY05 HSE, Duratracs, RLD Sump Guard, RLD CB Aerial Mount/AE6110, RLD Spare Anti Theft, Altox FBH Remote, T-Maxx Split Charging System, Rear Power Panel, Rock Sliders...

FBH Cable available for borrowing to pay something back for all the help... 
 
Post #190083613th Jan 2018 11:42 am
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Narpy
Site Supporter 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 6385

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Pull the fuse in the fuse box next to the battery, leave it out for a few mins, replace and try again with the FBH.
 Mods:
Front Fogs + Halos
FBH Remote Control
The 1st Ever RRS Modded Grill
Garmin Nuvi + D4 Surround + Reversing Camera.
D4 Steering Wheel.
Rear Boot Spoiler.
Twin Brake Lights.
Wing Mirror Indicator Repeaters.
Long Roof Rails
Make your own Narpy grill thread
Your light eclipsed the moon tonight. 
 
Post #190083813th Jan 2018 11:46 am
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mid
 


Member Since: 13 Apr 2017
Location: midlands
Posts: 68

United Kingdom 2008 Discovery 3 TDV6 SE Auto Java BlackDiscovery 3

Narpy wrote:
You can tweak the CO2 settings and it should run.
There's a post here somewhere showing how.
Link to follow.



Harpy, can you run the burner with the engine off / before you start the car? if so how!
  
Post #190089313th Jan 2018 3:11 pm
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