+2°C when I nipped out for essential supplies earlier and the FBH worked a treat. Can't hear it over the engine, so very quiet, but it was there alright, chugging away and warming the engine up very quickly ta. I know it's not considered "kind" to say no these days, but no. Just no, ok? And if it's not ok, still no.
15th Nov 2007 12:08 am
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
FBH
countrywide wrote:
Well mine is working now, it's 3 degree's and I reset the heater by removing the power connector for 30 seconds + after the car had gone into sleep mode. I also had the climate set to auto and it fired up straight away with a little bit of smoke.
Should be good for the morning as it will be very cold.
Which power connector plug did you pull out? There seems to be 3 lots of wires going in to mine - 2 of these seem to have connector type plugs 1 of which is larger than the other. Also, did you find out what the knack is for easily removing the connector plugs?
15th Nov 2007 3:36 pm
StuRox
Member Since: 16 Mar 2007
Location: Wherever the beaten track takes us
Posts: 637
I just had a go at lunch time to reset mine, just for good measure, as mine certainly doesn't get warm in 5 mins and couldn't get the plug out - even think I have broken my key so any tips would be appreciated
15th Nov 2007 3:37 pm
countrywide
Member Since: 16 Sep 2007
Location: UK
Posts: 6019
I tried the key trick and it didn't work.
The connector is the one on the right if your facing the heater from the passenger wing. I used a small screwdriver to push down the side of the conector and it seemed to suddenly unclick. It is hard to describe, but to get access I had to move the air filter for the FBH, which is just held on with one plastic clip.
I'll try and get some photo's later
15th Nov 2007 3:51 pm
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
countrywide wrote:
I tried the key trick and it didn't work.
The connector is the one on the right if your facing the heater from the passenger wing. I used a small screwdriver to push down the side of the conector and it seemed to suddenly unclick. It is hard to describe, but to get access I had to move the air filter for the FBH, which is just held on with one plastic clip.
I'll try and get some photo's later
Photos would be very helpful - if I'm looking at the correct connector, then there doesn't seem to be anything that I would have to move to get to it. My D3 is March 05 TDV6 SE
15th Nov 2007 4:10 pm
gilmore
Member Since: 16 Jan 2005
Location: On the sofa
Posts: 2185
My FBH was stone cold after a 8 mile drive in -1degree this morning. I can't believe they're that unreliable, as mine worked ok all last winter. I reckon LR have disabled them in some software patch. Grrrr
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robAll opinions expressed in this posting are my own and are not necessarily those of someone who knows what they are talking about.
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15th Nov 2007 6:27 pm
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
FBH
countrywide wrote:
I tried the key trick and it didn't work.
What's the key trick?
15th Nov 2007 6:35 pm
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
FBH
I found the following diagnostic info regarding the FBH that was fitted to D2s:
"Diagnostics
The fuel burning heater is capable of storing fault codes which are retrievable through TestBook. TestBook also has the ability to read real time inputs and outputs.
The fuel burning heater ECU will try to ignite the fuel burning heater three times within one operating cycle, (engine running and ambient temperature below 5°C (41°F)). If the heater fails to ignite, a fault is stored and the fuel burning heater will remain dormant until the conditions needed to operate are met again. If the fuel burning heater fails to ignite the fuel on three consecutive trips, (engine running, temperature below 5°C (41°F)) it will not attempt to operate again until the fault codes have been cleared.
The fuel burning heater ECU has a volatile memory. If all power is lost to the fuel burning heater, any fault code stored inside its memory will be lost. On reconnection of power the fuel burning heater will operate as if no previous faults have occurred."
If the FBH on the D3 also doesn't attempt to operate after 3 failed starts until the fault codes are cleared- it seems to make sense to remove the fault codes by removing the power to the heater temporarily then reconnecting as Countrywide did.
15th Nov 2007 6:55 pm
countrywide
Member Since: 16 Sep 2007
Location: UK
Posts: 6019
Problem is that not being used all summer it could have air locks in the fuel supply (even with the dosing pump), so it locks out. It's one of the reasons I am trying to get a group buy for the timers, but Webasto are so slow in responding.
We had the same type of unit in our boat and this happened a lot. On the boat it was quite often the battery voltage as it requires quite a lot of current to get the heater plug hot and start the heater.
I'll take the photo's in the morning on how to remove the connector.
15th Nov 2007 8:07 pm
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
FBH Reset
countrywide wrote:
I'll take the photo's in the morning on how to remove the connector.
-1C this morning when I started the motor up and not a peep from the FBH. Nearly froze to death kneeling on the pavement watching the FBH exhaust through the wheel arch to see if there was any sign of life! Attracted strange looks from the neighbours! Having said that, the coolant temperature guage did seem to rise a bit quicker than it has been. If I had been able to stop after 5 minutes or so of starting on my journey, I would have done so and risked touching the FBH exhaust to see if it burnt me!
Looking forward to seeing the photos so that I can have a go at removing the connector at lunchtime
16th Nov 2007 11:33 am
John C
Member Since: 28 Aug 2007
Location: East Yorkshire
Posts: 3292
What are your fuel levels like? My FBH works fine. However this morning when I started up on the red it didn't run. Filled up, and worked fine tonight...?2020 SDV6 D5 HSE, Carpathian Grey +
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16th Nov 2007 8:54 pm
countrywide
Member Since: 16 Sep 2007
Location: UK
Posts: 6019
I'll take photo's in the morning as I was out all day today for work, I am not sure but maybe fuse 28 or 29 (can't remember) in the engine bay fuse box does the same thing. I read in another post that it won't fire up if the red fuel light is on.
Last edited by countrywide on 16th Nov 2007 9:11 pm. Edited 1 time in total
16th Nov 2007 8:57 pm
philhunt
Member Since: 16 Sep 2007
Location: MI5 not 9 to 5
Posts: 1761
John C wrote:
What are your fuel levels like? My FBH works fine. However this morning when I started up on the red it didn't run. Filled up, and worked fine tonight...?
My tank's got about 60 litres in it
16th Nov 2007 9:06 pm
DSL Keeper of the wheelie bin
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and couldn't get the plug out - even think I have broken my key 
so any tips would be appreciated
