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

New FBH Pump - no joy! Error 88h Fault
Post Reply  Down to end
Page 3 of 3 <123
zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 566

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Very strange if it’s not starting but no codes. I’m assuming your reading the codes with the wtt software and lead to a pc? Maybe try starting it and video the status screen on the wtt software, would have a better idea when it’s shutting down then and for what reason.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192861420th Mar 2018 8:35 pm
View user's profile Send private message View poster's gallery Reply with quote
jonathanrichards
 


Member Since: 11 Jan 2018
Location: Hull
Posts: 116

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

I'll try again in the morning, but it starts the starting cycle and I can hear combustion happening (with smoke), then as it seems to accelerate, it then enters a cooling cycle and stops.

Maybe tomorrow I'll be more diligent and look for a code.
  
Post #192861720th Mar 2018 8:41 pm
View user's profile Send private message View poster's gallery Reply with quote
zinke
 


Member Since: 22 Feb 2014
Location: Scunthorpe
Posts: 566

2006 Discovery 3 TDV6 S Manual Zermatt SilverDiscovery 3

Sounds like it’s doing the “02h” fault, which I think is just a general fail to start (normally because of carbon build up) or it’s a overheat fault which will probably be a bad sensor if it’s happening so soon. If your reading the faults with a iid you won’t always see everything that’s stored in the heater that you will with the wtt software, well that’s my experience anyway.

Pete.
 IID, webasto software and workshop facility's available.  
Post #192863720th Mar 2018 9:34 pm
View user's profile Send private message View poster's gallery Reply with quote
jonathanrichards
 


Member Since: 11 Jan 2018
Location: Hull
Posts: 116

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Yes, tomorrow if hairdryer and persistence day.

Let's hope I can get it started long enough to change the CO2 level
  
Post #192865820th Mar 2018 10:18 pm
View user's profile Send private message View poster's gallery Reply with quote
Slovsdisco
 


Member Since: 19 Dec 2018
Location: Cornwall
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

Any joy on this? Would be nice to understand if you were successful in tracing your fault?
 Landrover discovery 3, 2005, TDV6, manual, 5 seats  
Post #201956817th Jan 2019 9:26 pm
View user's profile Send private message View poster's gallery Reply with quote
jonathanrichards
 


Member Since: 11 Jan 2018
Location: Hull
Posts: 116

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Yes, I found that the power wire had a break in it. So I ran a fresh power lead to the pump from the FBH - down the chassis rails, to the pump. The pump then worked fine.

I had some other issues with the FBJ and you can see a film I made about it here which also shows the new wire I fitted.

  
Post #201959617th Jan 2019 10:23 pm
View user's profile Send private message View poster's gallery Reply with quote
jonathanrichards
 


Member Since: 11 Jan 2018
Location: Hull
Posts: 116

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

It's the blue wire you can see in this YouTube thumbnail above.
  
Post #201959817th Jan 2019 10:24 pm
View user's profile Send private message View poster's gallery Reply with quote
Slovsdisco
 


Member Since: 19 Dec 2018
Location: Cornwall
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

Great footage and very helpful. Certainly gives me something to start with.

My 88h fault is intermittent however, in that some days it appears to run, and others not.

First port of call was to replace the FBH pump with a second hand one. It flashed up and ran straight away with a clean burn (ruling out the issue you had with mismatched parts). Few days later it begins to be intermittent again. WTT diognostics last night states 88h again.

Interestingly it ran quite well after I initially changed the pump out. Can’t help but think I may have some minor blockage in the suction line from the tank and me fiddling around wit the pump may have helped the restriction. I might see if a blow of an air gun (low pressure) into the fuel tank might remove anything that might have become lodged in that line.
 Landrover discovery 3, 2005, TDV6, manual, 5 seats  
Post #201969018th Jan 2019 9:02 am
View user's profile Send private message View poster's gallery Reply with quote
Martin
Site Admin and Owner 


Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 17424

Wales 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

As the FBH is reporting an error with the pump - 88h (0x88) is "fuel pump failure", then I would be looking at the fuel pump wiring.

A lack of fuel getting to the FBH (e.g. due to blocked pipes) would likely create a "no start" error, as the FBH would be happily operating the pump, but it couldn't light a flame due to no fuel.

If you need a replacement FBH fuel pump connector or any terminals etc to make up a new/temporary wire then I've got parts in the site shop: www.disco3.co.uk/shop/webasto-wiring-parts-c15.html
 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know! 
 
Post #201970718th Jan 2019 9:55 am
View user's profile Send private message View poster's gallery Send e-mail Reply with quote
Slovsdisco
 


Member Since: 19 Dec 2018
Location: Cornwall
Posts: 38

United Kingdom 2005 Discovery 3 TDV6 Base 5 Seat Manual Zermatt SilverDiscovery 3

That does make sense come to think of it. logic would dictate, i should run the methodology Jonathan adopted with regards to running in a new wire off my test harness to the fuel pump.

ill give it a go over the weekend.
 Landrover discovery 3, 2005, TDV6, manual, 5 seats  
Post #201984418th Jan 2019 3:32 pm
View user's profile Send private message View poster's gallery Reply with quote
jonathanrichards
 


Member Since: 11 Jan 2018
Location: Hull
Posts: 116

United Kingdom 2008 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Good luck.

My approach is step by step diagnostics of each component. Then the problem usually presents itself sooner or later.

Took a while to figure mine out as it had a broken power supply to the pump and needed a new burner. Once those were fitted, I couldn't quite believe it didn't work properly. The last thing I expected was a part incompatibility (the pump).

That was a bit of a curve ball...
  
Post #202033619th Jan 2019 10:40 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 3 of 3 <123
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 © 2004-2019 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