Advertise on DISCO4.COM
Forum · Gallery · Wiki · Shop · Sponsors
DISCO4.COM > Webasto Fuel Burning Heater

After turning on FBH , how do I turn it off ?
Post Reply  Down to end
Page 1 of 1
Bi Ullamh
 


Member Since: 01 Sep 2011
Location: County Laois
Posts: 10

Ireland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3
After turning on FBH , how do I turn it off ?

Hi , I have a 2005 2.7 HSE with the red wire factory installed in the Webasto heater. I purchased on eBay a circuit that gives the Wbus output. I've cut the red wire and connected my Wbus output to it. When I power up the circuit board the FBH starts perfect and heats the coolant pipes. When I remove power from the Wbus circuit board ,the FBH keeps running. When I then removed my Wbus wire from the red wire the FBH still runs . I've let it run for 30 mins after disconnecting my Wbus circuit , then started the Disco for a short period and turned the engine off and it still runs . The Disco says the outside temperature is 13 degrees C. It appears the only way I can stop it is to remove fuse 28 under the bonnet. Is the bottom right 2 pin plug the 12V supply to the FBH ?, so by breaking this circuit after a set time could I turn off the heater ?
I know there's lots of info out there but I can't figure out how to stop the FBH simply.
I know I could of bought some fancy FBH kits but nothing beats the smile on your face when you figure a cheap way of doing it yourself , or more often, the frustration of someone saying " I told you that would never work"
  
Post #18661368th Oct 2017 2:58 pm
View user's profile Send private message View poster's gallery Reply with quote
Erea
 


Member Since: 19 Mar 2012
Location: Munster
Posts: 1509

Ireland 2006 Discovery 3 TDV6 Commercial Manual Zambezi SilverDiscovery 3

Everyone will be jealous of that problem. I can only get mine to run for two minutes and then it shuts down. Can you put a link to what you bought?
As far as I know it needs to go through a shutdown process so simply cutting the power will work but might not be the best way of doing it. Is it that it is trying to get the temp up fully or just ignoreing every thing and blasting away.
  
Post #18661418th Oct 2017 3:33 pm
View user's profile Send private message View poster's gallery Reply with quote
Narpy
 


Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830

2005 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

That's correct. The FBH continues to run but it will purge itself and will eventually shut down, but does take a couple of minutes.
Have patience and I think you'll find it's working correctly. Thumbs Up

I personally wouldn't start pulling fuses, you're likely to upset it and they're temperamental things as it is. 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
I'm not scared, I'm outta here. 
 
Post #18661588th Oct 2017 4:04 pm
View user's profile Send private message View poster's gallery Reply with quote
Aerialmark
 


Member Since: 21 Jun 2015
Location: Burnley (Where the M65 is cobbled)
Posts: 5191

England 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

Warm hands warm car Ian Bow down Thumbs Up Just cold backside and burnt right leg Shocked (heated seat element broke Big Cry )
 The happiest of people don't necessarily have the best of everything;
They just make the best of everything they have. 
 
Post #18661688th Oct 2017 4:21 pm
View user's profile Send private message View poster's gallery Reply with quote
Bi Ullamh
 


Member Since: 01 Sep 2011
Location: County Laois
Posts: 10

Ireland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

https://www.ebay.ie/i/162590138547
  
Post #18661868th Oct 2017 5:03 pm
View user's profile Send private message View poster's gallery Reply with quote
Bi Ullamh
 


Member Since: 01 Sep 2011
Location: County Laois
Posts: 10

Ireland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

That's the ebay link for the Wbus converter. As I said it was running for 30 mins , the pipes were hot to touch and it didn't seem like it was going to stop . I had bought a 12V countdown timer on eBay for a couple of euro that I was going to set for say 15 mins and I thought this is easy and it was, if the FBH heater would just stop when the timer turns off the power to the Wbus converter.
  
Post #18661898th Oct 2017 5:09 pm
View user's profile Send private message View poster's gallery Reply with quote
Dazz360
 


Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

I know it’s been a while but I’ve got the same issue, I fitted a Wbus to one D3 and a temp sensor and count down timer It worked perfectly. Now I’ve took it from my old D3 to my newer one and now I’ve got same problem as yourself. I don’t understand it Shocked Shocked it’s got to be the fbh settings
 Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days) 
 
Post #209485724th Oct 2019 8:02 pm
View user's profile Send private message View poster's gallery Reply with quote
Nc1989
 


Member Since: 28 Apr 2015
Location: Doncaster
Posts: 202

United Kingdom 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

The fbh won’t be turning off because there is no switch off message coming from the wbus converter to the fbh. Try powering on again the wbus converter with fbh running to see if it will send an off message on second power application. Also do not switch the heater off by pulling the main fuse, you will kill the fbh quick sharp.
  
Post #209506125th Oct 2019 5:37 pm
View user's profile Send private message View poster's gallery Reply with quote
Dazz360
 


Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

My system worked absolutely fine on my other car starting it and shutting down but for some reason it doesn’t shut this car’s fbh down
 Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days) 
 
Post #209509825th Oct 2019 8:36 pm
View user's profile Send private message View poster's gallery Reply with quote
Nc1989
 


Member Since: 28 Apr 2015
Location: Doncaster
Posts: 202

United Kingdom 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

Likely to be a different dataset in this heater and the off message is blocked. From memory the heater will run for 1 hr max anyway, does the heater shut down if you open the drivers door or turn the ignition on?
  
Post #209513626th Oct 2019 8:11 am
View user's profile Send private message View poster's gallery Reply with quote
Dazz360
 


Member Since: 03 Sep 2016
Location: West Mids Walsall
Posts: 871

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Bonatti GreyDiscovery 3

The heater starts up when engine is first started, I drive home 30-45 minutes then switch off engine, fbh still running and I lock the car. I haven’t tried unlocking the car and opening a door to see if it starts to shut down
 Metal auto sump & fluid change (3 hrs)
LR door puddle projectors (10 mins)
Tinted Bonnet wind deflector (10 mins)
All Intercooler pipes and Tbolts (2hrs)
3 injectors replaced so far (30mins)
Sunroof drain pipes both sides 2.5 hrs)
Rear discs, shoes,pads,callipers,flexi hoses, rigid brake line, n/s upper hub carrier bush and rear n/s upper arm (13hrs over 2 days) 
 
Post #209529326th Oct 2019 5:57 pm
View user's profile Send private message View poster's gallery Reply with quote
Mole734
 


Member Since: 12 Aug 2016
Location: Derbyshire
Posts: 161

United Kingdom 2005 Discovery 3 TDV6 S Manual Java BlackDiscovery 3

Look carefully at the bus converter wiring diagram, there are 3 wires.

1. Earth
2. PERMANENT live
3. Signal

The converter sends a stop signal when the signal wire 12v is removed PROVIDED the permanent 12v wire still has 12v
  
Post #209532626th Oct 2019 8:10 pm
View user's profile Send private message View poster's gallery Post Reply
Display posts from the last:  
Post Reply Back to top
Page 1 of 1
Jump to:  
Previous Topic | Next Topic >


Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



DISCO4.COM Copyright © 2004-2024 Futuranet Ltd & Martin Lewis
DISCO3.CO.UK RSS Feed - All Forums

DISCO4.COM is independent and not affiliated to Land Rover.
Switch to Mobile Site