Dometic RMD8505 Fridge Accessing Control PCB

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Jul 1, 2010
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Hymer B 588 DL
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Since September 2010
Fridge will not switch off, when changing over to lpg it goes straight into alarm and not attempting to ignite so guessing the control pcb is at fault. Tried to get at said pcb to remove it and send for repair, the 2 screws removed bu unable to remove casing to get at pcb. It moves a small amount but not wishing to force anything and break the casing thought I would ask the, knowledgeable collective what is the secret to its removal?
IMG_4332.webp
 
If you've taken the two screws out from underneath, you just need a fine scraper or very thin knife to lever the front off at the top of it (on the black line). It needs a bit of coaxing and you won't break it. I started it in the middle, at the top.
Good luck :giggle:

Edited to add - I had trouble sourcing the pcb and used THIS company. He had one in stock, where Dometic and others said they had to order and wouldn't give a date. Even said that Dometic would have to make one :rolleyes:
Give the chap a ring, and he will know exactly what you are talking about. You need the details off of the label inside the fridge.
 
Last edited:
Check the rear main pcb for poor edge connections as they are well known for issues and can cause all sorts of problems. You can completely shut the fridge down and remove the ribbon for the control panel. The front panels have been known to get condensation on them, worth looking at that too
 
Before you buy a new pcb .buy yourself a can of electrical contact spray. Around £6 .halfords stock it.
Take out the pcb and using a stiff brush . A toothbrush will do. Clean across the soldered contacts on the pcb spray with the cleaner and rub the contacts clean of any grey or green deposits.
Let it dry and refit and see if it comes to life.
If it does then you can remove it again and coat the contacts with a non conductive lacquer to stop further condensation and corrosion.
You have nothing to lose trying this. It's worked for me a couple of times on pcb fridge boards.
 

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