Fridge not working on 240v

martinr

martinr

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Looking for help with regards to my Dometic RMD 8505 fridge freezer not working on 240v
works fine on gas ,have checked all the obvious even changed controller circuit board the funny thing is the matrix on the back of the fridge is getting hot but not cooling fridge. All voltages on the controller are ok ,no alarms on the fridge it thinks everything is ok changes over automatically when needed and as I say works fine on gas
Hope one of you tech guys can suggest something I have not checked
 
i can only suggest you check if the 240v element is getting hot . if not , do a continuity test on the element . no continuity means it's dead .
 
Thanks for the surguestion but the matrix is getting hot so I would think the heating element is working
 
Basics -
is the fridge level?
Have you got 230v working on other devices?
 
I have found that my fridge is sensitive to the voltage, some sites have poor wiring and a big voltage drop. Below about 190V my fridge won't work on mains but does on gas.
Have you checked the mains voltage?
 
At home on hook up flat all other 240v ok fridge works fine on gas matrex on back of fridge getting hot but fridge still cold
 
IMG_20210713_210057.jpg
 
Thanks for all your words of wisdom think I am going to have to get it booked in , my feeling is it is something to do with the heater element don’t fancy pulling fridge out to check it
 
Just a thought, but when on 240v have you checked that the gas burner is not lit. Wondering if the fridge switches to gas automatically when the 240v fails and that is why the matrix is hot?
 
Following this as I have exactly the same problem..
I have no idea either, at first I thought it was because it was not level but that progressed to the same fault.
 
n brown said:
did you check the continuity ?
Click to expand...
I am leaning towards the element being defective. it will work for a couple of days then stop .... no fault code showing.
Gas and 12 volt perfect...
I dont use 240 that often ,
 
If the fridge works fine on gas that rules out many other possible issues.
The fact that it fails to function on Leccy, suggests as Nigel states its the element.
Elements can look ok on a visual, but its important to check their continuity on a multi meter.
Obviously its important to check that mains voltage is reaching your fridge.
I hope you get this sorted.
 
just in case we're assuming you understand what we're on about . to check continuity ,turn off power , then find the 2 wires [+ earth] that come from the back of the switch to the element ,then put the probes on the stripped ends where they go into a terminal block or spade connectors . if there's no audible signal then the element is faulty
 
Hi guys thanks for all the input but when on electric and not working the fins and pipes are still getting hot but fridge still not cooling so would think element is ok the next day it will work fine for a few days
 
Just a variation on this theme- my 3 way works on mains and gas but not on 12v. lighting works so cant be insufficient power and solar shows sufficient output- any thoughts?
 
greg1 said:
Just a variation on this theme- my 3 way works on mains and gas but not on 12v. lighting works so cant be insufficient power and solar shows sufficient output- any thoughts?
Click to expand...
Your 3 way fridge only works on 12v when engine is running.
 
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