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Jun 14th, 2026
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
Posts: 513 Likes: 2 |
Another day another challenge from the Plus 4. Lost the dash electrics... so no speedo or lights on the switches. Nor any fan... and ig was hotmwithbthe hood up (I could see I was going to get wet on the way home otherwise.
The dash fuse has gone... easily replaced. I'm going to pull the dash again beforen I switch on just to make sure there's nothing obviously shorting. Haven't checked the fan fuse yet either.
But before I go into diagnosis mode, any common problems I shojld be aware of please? Its a 2012 model btw.
Thanks
Nick
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Joined: Dec 2008
Posts: 22,359 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,359 Likes: 353 |
Only that according to expert opinion, some of the fuses are marginal for the load. If it's a 15A and it blows again without an obvious cause, I would try a 20A. Just be careful!
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
Posts: 513 Likes: 2 |
Its 5a... I was thinking of going to 7.5 if necessary...
But as I qualified many many years ago as an electronics engineer it goes against the grain!
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Joined: Sep 2011
Posts: 14,748 Likes: 158
Member of the Inner Circle
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Member of the Inner Circle
Joined: Sep 2011
Posts: 14,748 Likes: 158 |
The circuit board behind the switch panel is notorious for burning out. I had 4 replacments before it was eliminated with hard wired circuits and relays.
Peter ![[Linked Image]](http://bradley.it/public_images/drive.jpg)
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Joined: Nov 2013
Posts: 541 Likes: 7
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2013
Posts: 541 Likes: 7 |
Similar thing happened to me.
Was traced to bad connections on both sides of the under dash fusebox, easily fixed but a bit of a squeeze to get access to it.
Hope it is not the PCB that has developed a problem as they are very expensive.
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Joined: May 2009
Posts: 238 Likes: 3
L - Learner Plates On
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L - Learner Plates On
Joined: May 2009
Posts: 238 Likes: 3 |
I had something similar which eventually traced to a loose multi plug,it maybe worth checking the dash plug and if it's happened in adverse weather conditions -water ingress
1999 Morgan Plus 8. 3.9 ....
1961 Alvis TD21 Series1 3 Litre Auto....
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
Posts: 513 Likes: 2 |
Oh dear. It was dry at the time, so not a water issue. Should get time tonight to investigate.
Thanks folks
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
Posts: 513 Likes: 2 |
Impatience got the better of me.... had acquick try with a new fuse. It works unless I put the faster stage of fan on when the fuse goes. So dash off tonight.... I am assuming the fan switch operates a relay for the fan so the 2nd speed should not be more load. But being a Morgan that logic may not hold!
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Joined: Oct 2016
Posts: 513 Likes: 2
Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Oct 2016
Posts: 513 Likes: 2 |
And the GoMog wiring diagrams (2004 is the latest) show a single speed fan so it's really back to basics on fault finding... :-(
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Joined: Dec 2008
Posts: 22,359 Likes: 353
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,359 Likes: 353 |
My Roadster from 2005 has a single speed fan. I think it changed sometime in 2005 to a two speed.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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