Thetford N112 PCB Fault.

Apr 13, 2009
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Our fridge doesn't start on the button. Been told it's a faulty PCB? So? is there any recommends as to who can exchange or repair it please? With the bottom vent removed, I can see it'll be no Picnic removing it? Any advices, greatly recieved?
 
Apr 13, 2009
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Thank you Gafferbill. I have replied so to keep the OP going. I'll try the reconnect and try again. Bit worried that there is two PCB's though? Well over 200 quid to replace both? I see the thought that switching off completely may terminally reset, I hope it works for me but surely fuse removal would have the desired effect? I'll let this post know later.
 
Last edited:
Nov 30, 2022
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I have, over the years, sorted a few fridge "issues" by physically disconnecting the 12v supply for 30 seconds and reconnecting. A bit like control/alt/delete on a computer, which I suppose is what a PCB is like.
That would now be my very first "Go to" for any fridge issues, it onky takes a few seconds but could save a fortune but it's vital to physically separate the multi plug to ensure total disconnection.
 
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Apr 13, 2009
236
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I have, over the years, sorted a few fridge "issues" by physically disconnecting the 12v supply for 30 seconds and reconnecting. A bit like control/alt/delete on a computer, which I suppose is what a PCB is like.
That would now be my very first "Go to" for any fridge issues, it onky takes a few seconds but could save a fortune but it's vital to physically separate the multi plug to ensure total disconnection.
Hi, yes Mr Plodd. I intend to reconnect it in the next hour or so, fingers crossed it works for me? A friend of mine, he has a car repair garage. He calls it "Terminal Reset "and it's the very first trial he and his Staff try with any electrical issue resulting in success very often. :)
 
Jun 20, 2005
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Bluetonic, have you had anything like a PCB repaired by these people?
Not a PCB as such but two I know, me plus one have had new chargers to replace the broken BCA unit. The other was a repair to an old Nord Electronica charger and control unit fitted to an older Sterling. All work was excellent.
 
Apr 13, 2009
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Hi, yes Mr Plodd. I intend to reconnect it in the next hour or so, fingers crossed it works for me? A friend of mine, he has a car repair garage. He calls it "Terminal Reset "and it's the very first trial he and his Staff try with any electrical issue resulting in success very often. :)
Going to give this one final go before removing the board, hopefully for repair
 
Sep 26, 2018
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I had early issues last year with the Thetford N series in our Bailey Cabrera where the fridge panel and internal lights would start flashing. Long story short, the 12v -ve connection from the fridge was via the fixed gas pipe! All the issues were resolved by the dealer installing a proper -ve connection direct to the van chassis. Within all the messing around, one of the attempted resolutions was replacing the PCB.

As part of this thing, I did a set of remote activities to try and rectify - the disconnection reset included. It required disconnection of the solar panel from the controller, as the panel isn't properly connected (i.e. direct to battery).
 
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Nov 6, 2005
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I had early issues last year with the Thetford N series in our Bailey Cabrera where the fridge panel and internal lights would start flashing. Long story short, the 12v -ve connection from the fridge was via the fixed gas pipe! All the issues were resolved by the dealer installing a proper -ve connection direct to the van chassis. Within all the messing around, one of the attempted resolutions was replacing the PCB.

As part of this thing, I did a set of remote activities to try and rectify - the disconnection reset included. It required disconnection of the solar panel from the controller, as the panel isn't properly connected (i.e. direct to battery).
I'm baffled - caravans don't generally use the chassis for the 12v -ve, unlike cars - I'd expect to see a fully wired 12v -ve system.

There should of course be a 230v earth connection to the chassis.
 

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