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Old 07-02-2014, 04:25 PM   #1
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fridge not working on gas

on shorepower, my dometic runs 36-40, on gas, right now it's 57. I purged the gas lines, the check light doesn't come on, and the clicking ligher stops after a few secs. (I have a remote therm. so I don't have to open the door to get temp). any ideas ? 2011 crossroads.... on my 2nd dometic a/c and 2nd fridge.... thanks to my wife for insisting on extended warranty
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Old 07-02-2014, 04:29 PM   #2
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Are you sure the burner is lighting? Do you have internal and external fans?
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Old 07-02-2014, 04:54 PM   #3
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clicking stops very quick, but have not "looked" yet at the flame. has been on gas for about 3 hrs, freezer is 8 and fridge is 58.... it's 95 outside, so would guess it's doin something, but not enough. i'll check the flame at dusk, when I can see it, sun is to bright right now....... gonna do a little dry camping at lake powell, hate to spend $5/on ice...... this is my second dometic fridge in 3 yrs and on my 2 dometic a/c. not real happy with the quality, but I do have to admit, the new brisk 2 works tons better than the old a/c
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Old 07-02-2014, 07:29 PM   #4
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checked, i'm getting a flame when turned on in gas mode, doesn't cool........ had this one put in last summer....... leaving for pagosa springs july 5...... guess i'll see if I can get someone to come out and work on it there
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Old 07-03-2014, 12:41 AM   #5
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2015 sandpiper 360 PDEK . When I switched from 110 to gas and vis versa had a lag time. I figured it was just going through its cycle.
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Old 07-03-2014, 07:16 AM   #6
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So it does cool on AC; but not on gas (yet the flame does light and stay on).

Does the flame stay on constantly trying to cool or does it go out almost right away? Does the check light come on and stay on after 3 times?

Perhaps the flame sensor is not reliably detecting the flame and shuts the gas off.
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Old 07-03-2014, 07:32 AM   #7
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let fridge run overnite on gas, freezer is -4, fridge is 46, so it's working, just not cold enough..... guessing it needs a minor tweak somewhere .......... on shorepower, fridge would range 36-40....... still under warranty, will see if I can get a mobile repairman in pagosa springs.
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Old 07-03-2014, 11:03 AM   #8
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Originally Posted by gregtx View Post
let fridge run overnite on gas, freezer is -4, fridge is 46, so it's working, just not cold enough..... guessing it needs a minor tweak somewhere .......... on shorepower, fridge would range 36-40....... still under warranty, will see if I can get a mobile repairman in pagosa springs.
The flue may have a bug nest in it. (Does not affect the AC heater).

Try blowing it out with a can of compressed air.

You will need to remove the metal flame cover to gain access to the flue.
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Old 07-03-2014, 11:23 AM   #9
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The flue may have a bug nest in it. (Does not affect the AC heater).

Try blowing it out with a can of compressed air.

You will need to remove the metal flame cover to gain access to the flue.
Just asking, would a can have enough pressure to clear it?
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Old 07-03-2014, 11:35 AM   #10
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I'm still learning about these things but wouldn't the freezer getting down to -4 indicate that the heating systems are working correctly and that the problem is somewhere else?
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Old 07-03-2014, 11:47 AM   #11
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keith, i'm with u, freezer is colder, fridge is warmer on gas....... I don't get it. I did just get a new regulator for propane tanks....... stove and hot water appear to working normal, but when I try to switch tanks (I know both are full) I lose pressure (little window on regulator turns red). maybe bad diaphragm is screwing up pressure
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Old 07-03-2014, 12:54 PM   #12
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Just asking, would a can have enough pressure to clear it?
Probably not (it IS pretty tall), but I would not want to spray water up there either. A real compressor would do the job, but many folks don't have that kind of equipment.
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Old 07-03-2014, 12:59 PM   #13
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I'm still learning about these things but wouldn't the freezer getting down to -4 indicate that the heating systems are working correctly and that the problem is somewhere else?
And where might that "somewhere else" be?

The only non-commonality between AC and propane heat is the ability to transfer that heat to the ammonia.

Barring the OP doing something different between the two heat sources that causes radically different interior temperatures, I still think heat transfer affecting just propane should be looked at.

The freezer is much better insulated than the "ice box" and it gets first crack at whatever "coldness" is in the ammonia.
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Old 07-03-2014, 01:14 PM   #14
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Two items: check burner shutter for adjustment and is gas orifice too big or small (restricted) compare shape and size of flame to Dometic reference photos.


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Old 07-03-2014, 01:38 PM   #15
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Two items: check burner shutter for adjustment and is gas orifice too big or small (restricted) compare shape and size of flame to Dometic reference photos.


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Now this is possible! A yellow flame will cause minimal heat transfer as well as a blocked flue.
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