Drew0057
Member Since: 22 Sep 2021
Location: Devon
Posts: 11
  
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| Fuel burn heater not working |
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Hi peeps.
I’ve got a 2005 disco3 and the FBH does not work won’t even turn on I’m just wondering if it needs to see the fuel pump prime to start the process. I’ve plugged in a computer and tried to manually prime the pump to see if it works but the computer just says failed is there anything I can do? I’ve stripped and cleaned and still no joy any help would me much appreciated thanks
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 3rd Nov 2021 7:32 pm |
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aja4x4
Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463
 
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Its very unlikely to need priming i would start by reading the codes and resetting the unit, it may have locked out if its had too many failed attempts Andrew
D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE
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| 4th Nov 2021 6:33 am |
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Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1820
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I read this soooo often…. Priming…. Is ONLY needed if a fbh is installed NEW/FRESH so the fuel lines are 100% empty….., from tank to fbh that is…
In all other “cases” NEVER prime , especially diesel FBH…. Diesel does not evaporate (very) well, so if to much diesel it will NOT start, until cleaned internally….
People tend to think that it is like tickling a carburettor, but carburettors work with fuel/gas, totally different evaporation behaviour and totally different burning behaviour……
If a fbh (ttv or tt evo) does not work after removing a lockout… it is next to dirty, mostly a faulty glowplug…. Faulty = does not get hot enough to ignite the diesel/air mixture… Best regards
Harold
Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. 
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| 4th Nov 2021 7:51 am |
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Drew0057
Member Since: 22 Sep 2021
Location: Devon
Posts: 11
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I was only going to prime to make sure the pump was working and not blocked. I already had the unit out and cleaned. Wasn’t that bad really. How do you reset it? Say I’ve already had the fuse out and the unit unplugged to clean. So is there another way?? Thanks for the input 
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| 4th Nov 2021 1:40 pm |
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