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Not cooling as normal 2008 summit ridge reserve dometic rm 1350 with ice maker. started acting up last year, fans not coming on so I addedan external one .problem solved until recently lost power. now not coolin below 46 degrees making ice but constantly tried auto mode , gas only

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  • douglas_dunn Sep 21, 2009

    Should have been clearer this is an absorption refridge in an rv works on 110 ,gas and 12 volt

  • douglas_dunn Sep 23, 2009

    This fridge does not have a compresor it is an rv fridge an absorption type

    the external fan was to assist in ventilation in the out side compartment

  • douglas_dunn Sep 23, 2009

    this is a absorption type rv refridg does not have defrost fan. fans are for ventilation of the out side compartment neither does it have a compresor think I need to trouble shoot thermisters or circuit board



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Below the evaporator fan is the evaporator coils. Remove the back cover in the freezer to observe the frost pattern. Light frost everywhere(NORMAL) or a partial pattern of ice(LOW ON FREON) or nothing(LOW FREON OR COMPRESSOR PROBLEM).

The fridge gets its cold air from the freezer through a vent(damper) between the freezer and fridge.The fan in the freezer blows air through it. Make sure this fan is running. You may have to hold the door switch in for it to run. There is a flap you adjust with the fridge temp. control. Make sure it's opening and closing when you adjust the fridge temp.
The problem could be the electronic control if you have one or the mechanical linkages.

If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.

Posted on Sep 21, 2009

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It sounds like a problem with the defrost system that had gone worse in time.
If defrost fan was not working then the fan should have been tested by energizing fan motor. If fan was working, then test the defrost thermostat that start the fan. If fan motor was blown , you should have replaced the fan with original replacement, not with an external fan.
The situation surely put under stress the compressor motor. Probably now the compressor is gone too.
Try defrosting completely the fridge, by leaving it disconnected for two days. If when you restart the fridge, you find that it is cooling again, then it is still defrost system. In this case the fridge will stop cooling after a couple of days or weeks. If it still does not cool at all, check the compressor.

Posted on Sep 22, 2009

  • Ginko
    Ginko Sep 23, 2009

    If this is an absorption fridge, the external fan has a double function, it is a cooling fan and a defrost fan.
    /surely it does not have compressor. Absorption fridges work producing heat on external coil, the internal coil is the freezing one. You did not specified the model number, dometic rm 1350 is of no use to us. You should have mentioned before just refusing our question.

    Now that you obtained your refund, please change the negative rating given, at least I can say that I have wasted my time for something.

    Many thanks.




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Good day,
The ice maker locks out if the machine is not at normal temperature.
So the cooling system has to be repaired first.
Here is a list of items on a standard refrigerator that would prevent it from cooling.
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Ok, I realize I'm a little late on chiming in here, is this unit located in a slideout, and/or the top outside vent is in the wall not a roof located vent?

If so then the issue is that there are fans that are necessary to circulate air thru the hot coils. And there is probably a malfuntioning thermostat to turn these fans on/off. I had this issue with same fridge in a Gulfstream motorhome, and the temporary fix was to pull the faston connectors off the thermostat and tied them together with a 12V fuse, and taped it up with electrical tape to keep it from shorting on fridge chassis and parts. Replace the thermostat at your conveniance, as these fans are now running whenever fridge is on, and will run your batteries down if not plugged into shore power.

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Comment by Soulvisitor, posted on Jan 20, 2008 see this
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