maplecottage
Member Since: 01 Feb 2011
Location: Norfolk
Posts: 3171
  
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Hi Pete,
Probes were the right way round so not sure what happened. Coolant pump not running when connected to the FBH but does run really well if 12v applied directly (from battery).
Is it worth taking the FBH apart or should I just resign myself to needing a replacement unit ??
Steve
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 14th Dec 2011 12:30 pm |
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bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
 
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please test voltage out when the pump is connected and you try and fire the heater, if the fbh is workinbg then it should at least try to power the pump.
but yes you may need a new fbh if its nothing simple.
pete
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| 14th Dec 2011 12:50 pm |
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M44PWM
Member Since: 30 Jun 2010
Location: South East - in the countryside
Posts: 82
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Ordered mine, and paid, yesterday to get a message to say they are now under construction and not delivered yet - no timescale suggested..... 
Mitch Mitch
I never forget a face, but in your case I'll be glad to make an exception......
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| 14th Dec 2011 10:42 pm |
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bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
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Hi
I hope to send all orders out early next week. Sorry to all for the delay, the pcb factory has had some problems with their acid bath which has held things up 
Pete
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| 14th Dec 2011 10:52 pm |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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| 19th Dec 2011 3:57 pm |
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bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
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All UK orders are on the way now special delivery, non UK orders are getting collected tomorrow and sent with UPS.
Please accept my appols for the delay I have had with this batch or orders.
Pete
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| 19th Dec 2011 4:11 pm |
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B16 KJR
Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005
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Cheers Pete, hopefully I will be able to get it fitted this week
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| 19th Dec 2011 4:17 pm |
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bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
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All non Uk orders left today with UPS hopefully to arrive in time for crimbo 
I do have stock left ready if anyone is thinking of ordering, I can get them out tomorrow as the last accepted delivery at the post office is Thursday morning via Special Delivery this would still mean delivery to UK mainland before the big fella arrives on the 25th.
Pete
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| 20th Dec 2011 7:45 pm |
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maplecottage
Member Since: 01 Feb 2011
Location: Norfolk
Posts: 3171
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bellautos wrote:please test voltage out when the pump is connected and you try and fire the heater, if the fbh is workinbg then it should at least try to power the pump.
but yes you may need a new fbh if its nothing simple.
pete
Hi Pete,
Didn't get to check the voltages but....took another twist yesterday - started engine and then cleared down the coolant pump errors whist engine was running and guess what - a wheel arch full of smoke !!!!. Didn't run for the full time but at least it did run and no error codes logged. I'll keep trying to 'force' it, perhaps it's a battery voltage problem about to bite me in the derrier 
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| 21st Dec 2011 10:17 am |
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bellautos
Member Since: 02 Feb 2006
Location: NorthYorkshire
Posts: 2532
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Perfect news
Pete
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| 21st Dec 2011 10:32 am |
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disco_steve
Member Since: 25 Aug 2009
Location: Are you sure this is the M5 ?
Posts: 1498
 
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bellautos wrote:had some problems with their acid bath which has held things up
Isn't that what Dr Crippen said in defence  Never get mad - get even !!
06 D3 now gone to family member and still going strong at 265k
previous vehicles:
04 D2 TD5 - (clocked 189k from new)
52 X-Trail 2.2 SVE
various euro boxes !
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| 21st Dec 2011 10:45 am |
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Narpy
Member Since: 18 Jul 2011
Location: Stockport
Posts: 7830
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I think John Haigh was the Acid Bath Murderer Steve, a small point admittedly yet strangely topical. 
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| 21st Dec 2011 11:09 am |
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yorkie1
Member Since: 27 Dec 2010
Location: South Yorkshire
Posts: 5
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Steve (MapleCottage)
If your FBH is firing with the engine running then I would think your problem is likely to be with the circulating pump on the Webasto unit. With the engine running the water pump will circulate the water anyway so no overheating.
I am not sure but think that the output from the FBH to the circulating pump may not be a straight forward 12V anyway. The fuel pump for instance receives a pulse modulated output to operate correctly. Yorkie
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| 22nd Dec 2011 4:40 pm |
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D3puty Dog
Member Since: 15 Aug 2011
Location: Derbyshire
Posts: 139
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Fitted mine today - works perfectly 
Spoke to Pete on phone to check all the details before fitting and got the proper low down - fitted in about 20 mins - brilliant!
On a sadder note Alternator has gone U/S - TFC  coming in the moring to fit a new one - Warranty Direct happy to pay although only signed up in November so very happy! Its all in the grip of the Tyre Fitters hand!
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| 22nd Dec 2011 5:46 pm |
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maplecottage
Member Since: 01 Feb 2011
Location: Norfolk
Posts: 3171
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Hi Yorkie,
A while ago I would have been tempted to agree but during my 'investigations' I discovered that the coolant pump errors actually prevent the FBH from running at all, it is not an 'overheat' that was causing the malfunction/shutdown. The FBH detects that the pump is not running and prevents the burner from firing at all. 
On measuring the voltage from the FBH to the pump I found it was only 9.6v, this led me to think about voltage generally and so decided to try to activate it with the engine running but still cold thus ensuring good healthy voltage to the FBH, clear down the DTC's and the required low temperatures.
Lo and behold, it worked. 
I've yet to try it again but will be doing so at the weekend; have added a good slug of Redex for good measure - watch this space.
Merry xmas one and all.
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| 23rd Dec 2011 8:50 am |
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