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-   -   pros/cons of refer continuous operation (http://www.airforums.com/forums/f425/pros-cons-of-refer-continuous-operation-55123.html)

wmarsha 08-14-2009 10:44 AM

pros/cons of refer continuous operation
 
It is quite easy for us to leave the reefer operating-at home, on the road, boondocking and in a park-any chime in on operating the reefer full time. Well, shoot writing this I realized there are folks who full-time the trailer, so I assume they full-time the reefer, too! (duh!:blush:) But, I'd still like to hear comments on this...thanks.
ol' bill the newbie

moosetags 08-14-2009 10:55 AM

Greetings from the Florida Panhandle
 
We use camp in Lucy quite a bit, 120+ nights a year. We run the refer at all times when Lucy is in use. When we get her home, we usually shut the refer down for a defrost and cleaning. After as long as nine weeks of consistent use, there is some frost build-up in the freezer section.

Brian

Minnie's Mate 08-14-2009 11:18 AM

My wife uses our Airstream "reefer" as an overflow from our "reefer" in the kitchen. After three + years of near continuous use, we haven't had a problem. It isn't opened often between trips, just when we need to get something out or to stock it for a trip.

jcanavera 08-14-2009 11:29 AM

Like anything else it will be a wear and tear issue. Logic would say that something going 24x365 is going to wear out faster. Harmful no. Sometimes depending on the item, not using it causes more harm! A low mileage class A or class C unit might be less reliable due to the wear and tear caused by sitting. We know that tires need to roll and axles need to flex. Non use kills them.

Jack

SilverRanger 08-14-2009 01:50 PM

Right or wrong, aside from an occasional defrosting, ours has been running continuously for over 4 years. No problems yet.

mutcth 08-14-2009 03:17 PM

Another newbie question - how much propane does a frig typically use? Can they run a very long time on the two 20-lb bottles?

Tom

jeff4506 08-14-2009 06:07 PM

Ran mine continuously for almost 2 weeks using what seemed less than half a 30 lb.us tank.

ROBERT CROSS 08-14-2009 06:14 PM

:wally: 15 days in the Adirondack's, on lpg most of the time, stays on while traveling. Did work well.

Sav'h Steve 08-14-2009 07:47 PM

New Cooling Unit __ Poor reg Frig temps 39-40 deg
 
As Jack pointed out. Non use has disadvantages.

Just found that out yesterday coming back from Myrtle Bch, and had the curb tire loose the tread after some rough roads. Tires were 7 years old and I was hoping for few more months of use. Bought a tire (luckily a small town had one) and was a wake up call for the 6 year life.

On that note I do believe that I could get more life had I just used it more frequently during the last 3 years. Note that my car tires got constant use and no problems with 8 years and 80,000 miles.

***On the Dometic 2603, I replaced the back cooling unit following the instructions exactly 2 years ago. Freezer gets to 16 deg. but frig only gets to 39-40 lowest either on gas or electric.

I too was wondering if the extra costs of running it (electric) would prevent the clogging of the ammonia gas in the coils, which I believe is what is happening.

Keep the posts coming.....

Steve

bibbs 08-14-2009 08:11 PM

I never thought about turning it off. My frige is only two years old, it must be frost free. Not any moving parts,whats to wear?

Bibbs

jcanavera 08-14-2009 09:13 PM

Quote:

Originally Posted by bibbs (Post 735173)
I never thought about turning it off. My frige is only two years old, it must be frost free. Not any moving parts,whats to wear?

Bibbs

The electric heater element has a fixed life. It's nothing more than a metal coil. Electronics in the "brains" constantly running. If you are constantly under gas operation, the gas valve will eventually die, the thermocouple that senses the flame will die. I don't know the effect of the boiler being continually under pressure, so that's pretty much an unknown. So for all intents it doesn't have to move, or move much to have a fixed life. What none of us know is the what the toll of constant operation is.

My fridge in my Hi-Lo failed after 14 years of use. If you added up all the hours that it ran over the course of 14 years, it probably doesn't even come close to my much more mechanical refrigerator in my house. Consider the climate the trailer fridge has to run in plus the shaking it gets during towing, I would be surprised that a home unit wouldn't have a shortened life.

So in retrospect maybe the biggest item that affects the life of an RV refrigerator is how much it gets towed and the roads you travel on. The wear and tear caused by operation might be a minor to what is inflicted when you are on the road.

Jack

Sav'h Steve 08-14-2009 09:16 PM

Ammonia only moving "part" _ does clog though
 
And that is the reason for asking if others had negative results from just running the frig a few times a year to camp vs. running all the time and it's expense on electricity.

Remember that is a heating coil to boil the ammonia in the back and resistance heat is not cheap - nor is replacement of a frig. I guess it would use more electricity than a full size frig because it is using a small compressor and fans.

Steve

jcanavera 08-14-2009 09:26 PM

Quote:

Originally Posted by Sav'h Steve (Post 735209)
And that is the reason for asking if others had negative results from just running the frig a few times a year to camp vs. running all the time and it's expense on electricity.

Remember that is a heating coil to boil the ammonia in the back and resistance heat is not cheap - nor is replacement of a frig. I guess it would use more electricity than a full size frig because it is using a small compressor and fans.

Steve

The other thing directly related to this comment is whether you operate that fridge in an off level situation. On the older units running off level didn't allow for free flow of the ammonia liquid mix. Once that free flow gets inhibited you start to develop deposits which eventually starts a clog. Somewhat like plaque in an artery. Once it starts it slowly continues to build until you get a clog....and your fridge has a heart attack, which for all intents means a loss of cooling capacity.

The newer fridges have been engineered to be more tolerant of off level conditions. Supposedly if its comfortable for you, then you are level enough. I'm picky and I try really hard to get that bubble centered. RV refrigerators are expensive to replace.

Jack

bhayden 08-14-2009 10:39 PM

I think in general more things die on trailers from lack of use (maintenance) than over use. But, electric coils do have a wear out factor and certainly running on propane there will be issues with soot build-up. If stationary though I think the electric coils shouldn't be an issue. I can't see feeding the thing propane year round though if the fridge is staying home more often than not.

We have a mid '40s fridge in our house that's been running almost continuously for over 60 years. There's no way it would still be alive if it was left sitting and then plugged in occasionally. OTOH, it's lasted this long because in hasn't been moved in almost 50 years!


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