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Altitude Effects on Fridge?

adamis
Nomad II
Nomad II
I have been camping in northern California for the last two years with my 2001 Bigfoot camper. I have a Dometic fridge that I assume is from the same time frame (I bought the camper about two years ago).

On a previous Lance camper I noticed that the coils on the back of the fridge would get very cold to the touch. On my current camper however the coils are only moderately cold to the touch.

Performance wise the fridge has mostly worked fine, I would see internal fridge temps of 32 degrees and the freezer would freeze well. It would take at least a full day to chill down once turned on and would rise in temp a bit when stocked with food.

For the last year all of my trips have been at lower elevations. This week I've been on a trip to Tahoe (6500ft) and I've noticed the fridge struggling to stay cold, hovering in the 40s (freezer is still fine). I thought it was because we were just in and out of it a lot but this morning I checked it first thing in the morning and it was reading 40 degrees when it would usually be 32 degree. It was 50 degrees last night and day time temps are in the mid to high 70s.

My question is whether it's possible that the fridge could be low on the ammonia gas just enough that it works okay in lower elevations but at higher elevations it's not working quite as well. I am leaning this direction just because the coils on my fridge are not cold like they were with my other camper.

Any thoughts?

1999 F350 Dually with 7.3 Diesel
2000 Bigfoot 10.6 Camper
17 REPLIES 17

Old-Biscuit
Explorer III
Explorer III
Cooling unit is SEALED and under high pressure (300# Plus)
NO..altitude does not affect fridge as in 'low ammonia' etc.

Low ammonia means LEAK and then there is NO ammonia/hydrogen gas etc


Altitude does have affect on fridge cooling......thinner air----fuel rich...cooler flame for heating

What's a person to do?
Well there isn't a 'high altitude kit', there isn't an 'air shutter' to adjust air ....fridge has fixed air inlet based on propane gas flow/pressure.

Need to check that burner flame is strong,steady, blue.
If yellowish/lazy then need to get more air to burner.

Remove lower vent cover and see if flame improves.
Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

Kayteg1
Explorer II
Explorer II
Each fridge is different, but commonly the RV sets with dual door do suffer from fridge section staying too warm.
Never noticed fridge being affected by elevation and I did camp at 10,000'
I would not worry about it too much after one day checking. Recheck it later and come to the conclusion.
40F is good temperature for fridge.

pianotuna
Nomad III
Nomad III
Are you running it on propane or electricity?
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.