F11 - Blower motor relay fuse - no power
|
Posts: 19
Threads: 6
Thanks Received: 0 in 0 posts
Thanks Given: 2
Joined: Sep 2022
Location: Oxford
Reputation:
0
15-09-2022, 09:45 AM
(This post was last modified: 15-09-2022, 11:04 AM by GilesO.)
2009 XTR
Tracing fault on blower motor.
Pinned down to F11 12v supply - no power when vehicle ignition is on.
Relay, blower and controller work fine when F11 is bypassed (direct 12v feed into fuse connector).
Where does F11 get its feed from?
(I am assuming its from the main feed into the engine bay fuse board, but as it is "ignition on" dependent, it has to be a switched feed).
Any ideas?
•
Posts: 5,665
Threads: 75
Thanks Received: 1,297 in 1,139 posts
Thanks Given: 223
Joined: Dec 2011
Location: UK
Reputation:
163
15-09-2022, 12:43 PM
(This post was last modified: 15-09-2022, 12:46 PM by Sol.)
That fuse is powered by another fuse, MF4 (MasterFuse 4) which is in the bottom section of the engine bay fusebox, under the top visible layer. You need to remove the top tray (may be rivetted in place) and the you can access the MasterFuses. They swing out once the top layer is removed. MF4 only powers F11.
______________________
Current:
Not a Citroen!
______________________
Previous:
2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
2008 M59 1.6 HDi Van
2003 M59 1.9D Van
•
Posts: 19
Threads: 6
Thanks Received: 0 in 0 posts
Thanks Given: 2
Joined: Sep 2022
Location: Oxford
Reputation:
0
(15-09-2022, 12:43 PM)Zion Wrote: That fuse is powered by another fuse, MF4 (MasterFuse 4) which is in the bottom section of the engine bay fusebox, under the top visible layer. You need to remove the top tray (may be rivetted in place) and the you can access the MasterFuses. They swing out once the top layer is removed. MF4 only powers F11.
Thanks for that.
The Haynes manual diagram wasn't very helpful as it shows F11 directly powered from the battery with M4 and M5 parallel to - not in series with - F11...
•
Posts: 5,665
Threads: 75
Thanks Received: 1,297 in 1,139 posts
Thanks Given: 223
Joined: Dec 2011
Location: UK
Reputation:
163
15-09-2022, 01:53 PM
(This post was last modified: 15-09-2022, 01:57 PM by Sol.)
I took this from the official schematics in Citroen ServiceBox. Haynes is good, but it lacks locations for relays and the masterfuses, I only used the Haynes diagram to show the position of that fuse.
I've attached the official schematic below - follow F11 back to MF4.
B9_Heating.pdf (Size: 157 KB / Downloads: 26)
______________________
Current:
Not a Citroen!
______________________
Previous:
2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
2008 M59 1.6 HDi Van
2003 M59 1.9D Van
•
Posts: 19
Threads: 6
Thanks Received: 0 in 0 posts
Thanks Given: 2
Joined: Sep 2022
Location: Oxford
Reputation:
0
(15-09-2022, 01:53 PM)Zion Wrote: I took this from the official schematics in Citroen ServiceBox. Haynes is good, but it lacks locations for relays and the masterfuses, I only used the Haynes diagram to show the position of that fuse.
I've attached the official schematic below - follow F11 back to MF4.
Thanks very much.
MF4 was OK but contacts looked pretty manky. Cleaned them up.
Decided to remove fuse box and all fuses, cleaned them up.
Everything now works as it should.
Now need to sort rattle in the blower. There’s always something…
•
Posts: 5,665
Threads: 75
Thanks Received: 1,297 in 1,139 posts
Thanks Given: 223
Joined: Dec 2011
Location: UK
Reputation:
163
15-09-2022, 05:55 PM
(This post was last modified: 15-09-2022, 05:56 PM by Sol.)
That's good to know. Could be a fix for other issues going forward.
The blower mounting bolts are 5.5mm heads, but Halfords sell a little socket set with that size in it..
______________________
Current:
Not a Citroen!
______________________
Previous:
2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
2008 M59 1.6 HDi Van
2003 M59 1.9D Van
•
Posts: 19
Threads: 6
Thanks Received: 0 in 0 posts
Thanks Given: 2
Joined: Sep 2022
Location: Oxford
Reputation:
0
16-09-2022, 08:19 AM
(This post was last modified: 20-09-2022, 08:13 AM by GilesO.)
Thanks again.
Found out about the bolts the hard way...
Finally got them off with an adjustable and replaced with automotive philips head self-tappers to make life easier in future...
On my model, the blower bottom bearing has a removeable cap, enabling lubrication. Also used the silicone lube flexi-pipe to get under the moulded fan and spray the front of the shaft as it emerges from the motor.
Now the fan can only be heard on setting 4 - whisper quiet on other settings.
I'll call that a result. At least until it does it again...
•
Posts: 5,665
Threads: 75
Thanks Received: 1,297 in 1,139 posts
Thanks Given: 223
Joined: Dec 2011
Location: UK
Reputation:
163
I did a similar thing last year on my previous B9, and a new resistor.
A tip which I think causes the failure of the resistor, is by crap design, it is in the outlet airflow for it's cooling and not the intake on the B9, so when you have the blower on low speed and the heat setting up high, the resistor is working at its hardest, and being "cooled" by very hot air. Not a good combo. So when mine is up to temp, I always put the heat setting back to the first "gap" between the last red band and the previous red band, and no more.
______________________
Current:
Not a Citroen!
______________________
Previous:
2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
2008 M59 1.6 HDi Van
2003 M59 1.9D Van
•
|
Users browsing this thread: 1 Guest(s)
|
Welcome
|
You have to register before you can post on our site.
|
Latest Threads
|
Headlight removal
Last Post: Drummond
Yesterday 04:45 PM
» Replies: 1
» Views: 68
|
Cold Start Valve
Last Post: Jehu40
Yesterday 03:29 PM
» Replies: 3
» Views: 143
|
1.5 Blue HDi info: oil and chain
Last Post: oldbury863
07-11-2024 07:47 PM
» Replies: 31
» Views: 35364
|
M49 Brake caliper carrier
Last Post: geoff
07-11-2024 07:34 PM
» Replies: 10
» Views: 394
|
Peugeot 208 alloy wheels
Last Post: Kieron G
07-11-2024 07:15 PM
» Replies: 0
» Views: 75
|
2011 B9 radio change possibility
Last Post: shtu
06-11-2024 10:01 PM
» Replies: 10
» Views: 548
|
Berlingo MAX M Diesel 2024 - removing load retai...
Last Post: dougienisbet
05-11-2024 04:06 PM
» Replies: 4
» Views: 300
|
Zion ... Diagbox 9.68 Free - Mr Rorry
Last Post: evdama
05-11-2024 02:04 PM
» Replies: 8
» Views: 1873
|
Help me troubleshoot. New starter, fresh battery...
Last Post: evdama
05-11-2024 08:42 AM
» Replies: 9
» Views: 230
|
Passenger seat buckle plastic piece missing?
Last Post: Noiz_TnT
05-11-2024 08:16 AM
» Replies: 2
» Views: 219
|
Recent Visitors
|
|
Hosting by
|
|
|