Dometic Fridge
Hi all.
The fridge in our caravan is not working in the 12 volt mode which we only use while traveling, but the 240 volt and the gas is working correct. Does anyone know if there is an inline 12 volt fuse to the fridge. I have checked everything in the main caravan
fuse box and all is OK there. Our model is the large Dometic RMSL 8501. I don't want to pay a call out charge just for somthing like a fuse.
Comments
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Should be a fuse in the car controlling the 12v supply.
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Is it actually not working from the car?as I have been advised that the 13pin supply from modern cars is not up to making a fridge cold (as in the "old"days)but will "maintain" the temp,we have the large 9330 model
Ps they only work on 12v from the car and then only while engine is running
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Is it actually not working from the car?as I have been advised that the 13pin supply from modern cars is not up to making a fridge cold (as in the "old"days)but will "maintain" the temp,we have the large 9330 model
Ps they only work on 12v from the car and then only while engine is running
We have had the car electrics changed over to a 13pin but we have towed three times since having it changed without any problem and everything worked fine. I have checked the fuse for the caravan electrics in the car and thats OK.
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Is it actually not working from the car?as I have been advised that the 13pin supply from modern cars is not up to making a fridge cold (as in the "old"days)but will "maintain" the temp,we have the large 9330 model
Ps they only work on 12v from the car and then only while engine is running
We have had the car electrics changed over to a 13pin but we have towed three times since having it changed without any problem and everything worked fine. I have checked the fuse for the caravan electrics in the car and thats OK.
...Check the connections in the 13pin car socket? have any come loose
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Is it actually not working from the car?as I have been advised that the 13pin supply from modern cars is not up to making a fridge cold (as in the "old"days)but will "maintain" the temp,we have the large 9330 model
Ps they only work on 12v from the car and then only while engine is running
We have had the car electrics changed over to a 13pin but we have towed three times since having it changed without any problem and everything worked fine. I have checked the fuse for the caravan electrics in the car and thats OK.
...Check the connections in the 13pin car socket? have any come loose
Write your comments here...I will check that next. but many thanks, hope it's not a new control panel in the fridge
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Push your voltmeter probes into the car's 13 pin socket. With the engine running and volts about around 13.5 volts you should get volts.
Or test that the caravan battery is getting a charge with the car running. Look for around 13 volts and above, if you do get volts that means the fridge supply is into the caravan supplying the interpose relays.
It gets harder to fault find after that. If in doubt take the car to a towbar fitter and ask them to check your 13pin on their test rig, its only a two minute job for them so may not incur a charge, finding any fault may.
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Is it actually not working from the car?as I have been advised that the 13pin supply from modern cars is not up to making a fridge cold (as in the "old"days)but will "maintain" the temp,we have the large 9330 model
Ps they only work on 12v from the car and then only while engine is running
We have had the car electrics changed over to a 13pin but we have towed three times since having it changed without any problem and everything worked fine. I have checked the fuse for the caravan electrics in the car and thats OK.
Write your comments here...If your electrics were changed over by a company ,take it to them and get them to put it on their test equipment
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We seem to have a similar problem with our Dometic fridge, ours is a large 2 Door model 8551. It just doesn't seem to even maintain cooling whilst we are towing! It works perfectly on electric and gas. We now use a separate thermometer to check the temperature,
as an example, a couple of weeks ago we left site the fridge thermomter said 2 degs, travelled about 80 miles and it read 8 degs. Last year in France our fridge was up to 18 when towing! Consequently we don't travel with much food in it anymore. The fridge
has been checked by a Dometic engineer and our dealer also the car has been checked by the Dometic guy and our garage. We are waiting for Dometic to come back with suggestions!0 -
Is there a light on it to show it is getting/not getting the 12v power? Or is it just not getting/staying cold?
The fridge has press button controls for the three and when either is not working correctly it shows by the control lights flashing and a buzzer, and this is what is showing on 12volt.
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I'm guessing either the 12v inline fuse has blown or when you changed to 13pin electrics they didn't run a cable for the fridge at all.
We have used the van three times since going over to 13 pin and everything was working fine.
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I have the same problem with my Dometic fridge. It completely defrosted on three occasions whilst driving long distances across France. My dealer has confirmed it works on 12v on their test rig and also confirmed the 12v supply from my car is OK. The conclusion
I’ve come to is that they are just not up to the job when towing in hot weather. My only other suspicion regards the charging circuit on my Ford Kuga. Apparently, to save fuel, it only charges its own battery when I take my foot off the accelerator. I’m wondering
if this also applies to the 12v fridge/battery feed to the caravan. Perhaps I’ll have to permanently wire my voltmeter into the caravan supply to see what’s going on whilst driving. But I’ll also have to look where I’m going!!0 -
When the Dometic mobile chap checked out our 8551 he measured 13.5 amps going through the 12V heater in the cooling circuit. Initially he checked using his own 12V battery as the power source, then we attached my car (Kia Sorento) and again it drew 13.5
amps at tickover. Didn't try it at working revs though, so it could be some sort of load shedding at speed as you suggest. If you wire in a meter, you might find an ammeter more useful, but it would have to be a fairly hefty one as the whole 160W power for
the fridge would pass through it.0 -
Got it sorted today and everything working OK. The problem was the live 12volt on the car, in the fuse box, so best to start at the front and work backwards, but many thanks all.
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