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Old 11-18-2017, 07:05 AM   #1
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Can't get frig to run on LPG

Hello everyone how all is well with you.

I have a 2001 Lance 1121. The refrigerator works on DC or AC but will not fire on propane gas. If you switch it to auto and into gas you can hear it click and turn on but then turns off after a few seconds or few minutes and the check light comes on .I was told it might be a dirty flute but I can't see any access panel or way to clean any suggestions or advice would be much appreciated.

I did take the roof cover off but I didn't see a flute just saw the back of the refrigerator and coils for the refrigerator .
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Old 11-18-2017, 07:18 AM   #2
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Propane supply should be checked and make sure the pressure is within specifications. This requires a manometer or specialized gauge as pressure feeding the burner is about 11 ounces of pressure.

In the meantime you can estimate if propane is good by observing the operation of your other propane devices. Good flow and heat from the stove and water heater?

As well you can remove the outside side panel of the fridge and there should be an inspection hatch on the perk tube burner where you can see the operation of the propane burner. Get someone to turn the fridge on to propane and you can watch the burner and see if it even lights.

Hope this helps.
Brian
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Old 11-18-2017, 07:38 AM   #3
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opps...my mistake. I should of mentioned that all other propane appliances work with no trouble
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Old 11-18-2017, 07:55 AM   #4
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Originally Posted by hemplife420 View Post
opps...my mistake. I should of mentioned that all other propane appliances work with no trouble
That's good. Do check the quality of the flame at the perk tube - short strong blue flame, with yellow tips on a LP burner.

There are a number of you tube videos for fridge maintenance.

Hope this helps,
Brian
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Old 11-18-2017, 08:04 AM   #5
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Often what happens when the unit is in storage surface oxidation (rust) inside the Chimney forms, then when you move the unit the vibration causes the rust to fall into the burner area, often blocking the orifice.
Try blowing the burner area with compressed air, a can of keyboard air will work well for this if you don't have a compressor.
And check the maintenance videos to ensure the flame is adjusted properly, you can tell by the color of the flame.
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Old 11-18-2017, 09:11 AM   #6
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Thanks guys I'll check YouTube. Don't know why I didn't do that. ill check o. the burner when it warms up a little more
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Old 11-18-2017, 12:56 PM   #7
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thanks guys got it working����
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Old 04-04-2018, 03:46 PM   #8
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Ok well it been awhile since I updated this so here goes...I have replace the control board termIlcoples igniter and igniter board...didn’t need to replace the latter 3 but chose to since the camper is 17 years old but she did need a new control board badly ...my new question is should she run on propane all the time or does it just come on to heat up the cooling liquid and then shut off and reignite when it senses the liquid warming up to cool it down again frig seams to stay at a constant 40 degrees..oh and I replaced the propane regulator
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Old 04-11-2018, 10:55 PM   #9
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Ok well it been awhile since I updated this so here goes...I have replace the control board termIlcoples igniter and igniter board...didnít need to replace the latter 3 but chose to since the camper is 17 years old but she did need a new control board badly ...my new question is should she run on propane all the time or does it just come on to heat up the cooling liquid and then shut off and reignite when it senses the liquid warming up to cool it down again frig seams to stay at a constant 40 degrees..oh and I replaced the propane regulator
The thermister inside the fridge signals the board to cycle either the flame or the electric heating element to turn on or off.

Fridge should be colder than 40, what is the freezer temp? when you are using the camper, leave the fridge on, it will cycle as it needs. For you to turn it on and off will simply complicate a simple issue.

Charles
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Old 04-12-2018, 10:27 AM   #10
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If the lower compartment is holding 40 degrees, Dometic would say it is working fine. The issue of how to know if a fridge is doing its thing comes up a lot and this is what Dometic has to say.

First of all make sure you are level and your vent is not blocked. Next take a one gallon jug of water and put it in the fridge. Temperature is never taken from the air in a refrigerator.

Next disconnect the thermocouple at the board and so the fridge will be calling for cooling constantly. Leave it for 24 hours. Then take the temperature of the water in jug. If you have 43 degrees with an outside ambient of around 95 degrees, all is good.

Yes, many fridges will do much better than that, but if it is 43 degrees or less, Dometic's position is there is no problem.

From the Dometic technician training manual page 26
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