Jayco Fridge

Submitted: Tuesday, May 13, 2003 at 04:45
ThreadID: 4880 Views:3968 Replies:11 FollowUps:8
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Just wondering if anyone has had problems with dometic fridges. I bought my Jayco in Jan this year. 240volt works fine, as well as gas, but on 12volt, it doesnt stay as cold while driving. I have checked the voltages and fuses on the car (80 Series), and all is ok. I make sure I have the fridge on 240 for at least a couple of days before a trip away(around 2deg), but rises to around 10deg after 5 hours driving. I have taken it back to Jayco once and they said everything is working fine. Is there something else I should be doing, or is this a common problem?
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Reply By: Wim - Tuesday, May 13, 2003 at 07:22

Tuesday, May 13, 2003 at 07:22
Stolzy.
What voltage (dc) do you have at the fridge when connected to the car with the engine running?Wim
AnswerID: 19837

Follow Up By: Wim - Tuesday, May 13, 2003 at 07:25

Tuesday, May 13, 2003 at 07:25
Stolzy.
Check voltage with the fridge connected and with it disconnected.Wim
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Follow Up By: Patsy - Tuesday, May 13, 2003 at 12:17

Tuesday, May 13, 2003 at 12:17
We have a Dometic/Electolux 3 way fridge in our new camper also. We also had an older one in our previous camper. In both cases, we have found that DC power is not as good as 240 volt or gas, but simply maintains a cool temperature whilst driving. It is not good enough to freeze things. Have had a few other minor problems but have worked these out (i.e. vehicle must be parked level to obtain optimum efficiency on gas). (Also flu at rear of fridge has previously slipped around to face another direction thus causing the fridge to work inefficiently [barely at all]).
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FollowupID: 12639

Follow Up By: Martin - Tuesday, May 13, 2003 at 21:28

Tuesday, May 13, 2003 at 21:28
Patsy the fridge should work perfectly on 12v
you will have faulty wiring if your fridge is not working properly on 12v
fridge must be level when parked but works perfectly while moving and being not level
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FollowupID: 12696

Reply By: Member - Wherethefugawi - Tuesday, May 13, 2003 at 07:22

Tuesday, May 13, 2003 at 07:22
I take it the fridge uses 12volts when driving....get an auto electrician to make sure the wiring is up to scratch to and for satisfacory operation.Richard
AnswerID: 19838

Follow Up By: Stolzy - Tuesday, May 13, 2003 at 22:52

Tuesday, May 13, 2003 at 22:52
The Jayco is brand new,and had the wiring on the car installed professionally when I had the electric brakes installed.
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Reply By: Member - Raymond - Tuesday, May 13, 2003 at 07:47

Tuesday, May 13, 2003 at 07:47
Hi Stolzy.
Make sure that the wiring from your battery to the caravan is heavy enough to carry the heavy current load that the fridge requires. When we owned a Jacyo we added a fan to the back of the fridge to improve the performance and also when stopped for lunch would run the fridge on gas for the hour we were stopped, the same if we stopped and went exploring.
Ray
No using 12 volt fridge instead of three waywanderin' in retirement. victor 2010
AnswerID: 19839

Reply By: Autolec - Tuesday, May 13, 2003 at 09:40

Tuesday, May 13, 2003 at 09:40
Stolzy you need a minimum of 10mm2 wire from your battery to your fridge. The connection between your vehicle and caravan needs to be made with a 50 amp Anderson plug. We normally use twin sheathed 6mm2 cable to do the job as it is easier to fit and more flexible. A 30 amp blade type fuse should be fitted from the positive on the battery to the lead. You need to run the earth wire as well to the negative terminal of the battery. You need to fit a Bosch type 30 amp relay to the ignition circuit so the fridge is only powered while the engine is running. A manual overide switch if you are stopping for lunch for an hour or going shopping at the supermarket is not a bad idea. A low voltage cutout is only $20 and a worthwhile fitment so if you do forget to turn it off or get delayed while shopping you will not flatten your vehicle battery. Absorbtion fridges depending on model take between 10 and 15 amps.
AnswerID: 19848

Reply By: raybates - Tuesday, May 13, 2003 at 09:50

Tuesday, May 13, 2003 at 09:50
Hi Stolzy,
I have run a complete seperate cable to run my three way fridge which is independant of any other wiring but don't forget to install a relay so that you do not draw current when your engine is turned off
AnswerID: 19853

Reply By: David N. - Tuesday, May 13, 2003 at 10:33

Tuesday, May 13, 2003 at 10:33
Stolzy
It is a very common problem with a 3-way.
Basically agree with pretty much all of the above
Check the voltage AT the frig (should be above 12) AND the amperage drawn. (most good multimeters have a 10Amp setting. It should draw a minimum of 10 amps- you only need to check this for a second or two. A half decent multimeter will only cost you about $30 from DickSmiths and is really essential)

If wiring and voltage are good, but amps are low, then maybe you have a dud element.
I had a new Dometic frig last year and was so unhappy with it I sold it in the trading post and went to a Danfoss powered 12v frig which is beeuuttiiffuull. (draws a maximum of 3.5 amps for typically only 30-50% duty cycle- depending on temp)
Good luck.
AnswerID: 19857

Reply By: Darian - Tuesday, May 13, 2003 at 13:48

Tuesday, May 13, 2003 at 13:48
Yep to all of the above, but keep in mind the 12 volt will never get to the gas / 240 performance. I see it more as maintenance mode, in between gas and/or 240 runs (gas when camped - 240 at home is pick - 12 only while mobile). Have just put in a 12 volt fan into the rear section - will try it in the car soon).Love the bush - stuck in the city - help.
AnswerID: 19879

Follow Up By: Member -BJ (Sydney) - Tuesday, May 13, 2003 at 14:26

Tuesday, May 13, 2003 at 14:26
Darian
You should update your rig info for new fridgeWish i was still here / Gulf in July
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FollowupID: 12657

Reply By: brian - Tuesday, May 13, 2003 at 20:28

Tuesday, May 13, 2003 at 20:28
Stolzy all the above applies but also for the fridge to work well on ANY power supply it must be ABSOLUTELY DEAD LEVEL in a moving vehicle this is almost never the case while travelling,
Result it can never operate at maximun cooling while travelling regardless of power supply.

they can work their optimun when level and stationary only regardless of power supply.
AnswerID: 19916

Follow Up By: Martin - Tuesday, May 13, 2003 at 21:26

Tuesday, May 13, 2003 at 21:26
Brian stop talking crap the fridge does not have to be level while travelling and the fridge will operate at maximum cooling when travelling

Brian contact Dometic or read the instructions instead of talking crap you know nothing about
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FollowupID: 12695

Reply By: victatwo - Tuesday, May 13, 2003 at 21:18

Tuesday, May 13, 2003 at 21:18
Have to agree with all the above especially wiring size as does not take much to voltage drop on 12 volt with the travel to the towing vehicle, would have thought that with the refrigitant slossing around with towing it should be just as efficient any thoughts on this???
Tom the pom
AnswerID: 19930

Reply By: Flash - Wednesday, May 14, 2003 at 12:49

Wednesday, May 14, 2003 at 12:49
They must be very level when stationary.
When moving it doesn't matter as the continual movement keeps the refridgerant moving also. Must have GOOD 12VOLT supply- separate leads.
However, Dometic are CRAP in my opinion. Hav had 3 over the years and never again! They promise the world but don't deliver.
Now have 12VOLT compressor friges X2 (1 upright, 1 chest) both danfoss comp- they're the ducks guts- you can have 3 way 'cos I won't ever hav another.
See Ya
AnswerID: 20008

Follow Up By: Martin - Thursday, May 15, 2003 at 08:58

Thursday, May 15, 2003 at 08:58
Flash you may like to know that the Dometic are the only upright/front door opening rated fridge for tropical conditions. If Dometic are installed correctly with proper and correct ventilation as per the manual they are among the best fridges available
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FollowupID: 12827

Reply By: brian - Wednesday, May 14, 2003 at 20:00

Wednesday, May 14, 2003 at 20:00
martin your reply is unnecessarily severe search the archives and other recent replys many others agree the fridge must be level to work efficiently,guess you must have had a hard day.happy travelling.
AnswerID: 20061

Follow Up By: Martin - Thursday, May 15, 2003 at 08:55

Thursday, May 15, 2003 at 08:55
nothing harsh at all as your post is wrong wrong wrong information
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FollowupID: 12824

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