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Refrigerator does not cool

DA77L13RAU6 115 VOLT

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  • cal4 May 19, 2009

    Refrigerator takes over an hour to cool the freezer down to 5degrees from 35 degrees. the evaporator fan is running, the condenser fan is running, the compressor is pulling 1.4 amps and the discharge temperature is 105 degrees. all coils are clean and the suction line is frosting up at the output of the evaporator.

  • Steven Carter May 11, 2010

    is the freezer working there could be 40 different things that lead up to no cool

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Little info to give a good diagnostic
here some hints:
1) try to defrost it
2) check the grid at the back that normally radiates the heat from the fridges cooling liquid, and undust it,
3) if it is a fridge/freezercombo, then it can be that the defrosting needs to happen in the freezer compartiment, as both sides most likely do share the same cmpressor
4) eventually your fridge lost its freon or other cooling gas.
5) could be the termostat also

Posted on Dec 28, 2008

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Posted on Jan 02, 2017

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Code on 2010 Enclave about the cooling fans running all the time while engine is on.Code is refrigerant pressure sensor cicuit low voltage. # is P0532-00.Does anybody know where sensor is located


DTC P0532: Air Conditioning A/C Refrigerant Pressure Sensor Circuit Low Voltage
The sensor gets 5 volt ref. voltage from the ECM - engine control module . Three wire sensor , all wires are to an from the ECM .

Circuit/System Description
The engine control module (ECM) monitors the high side refrigerant pressure through the A/C refrigerant pressure sensor. The ECM supplies a 5-volt reference and a low reference to the sensor. Changes in the A/C refrigerant pressure cause the A/C refrigerant pressure sensor signal to the ECM to vary. When the pressure is low, the signal voltage is low. When the pressure is high, the ECM commands the cooling fans on. When pressure is too high or too low, the ECM will not allow the A/C compressor clutch to engage.

Circuit/System Testing
Ignition OFF, disconnect the harness connector at the A/C refrigerant pressure sensor.
Ignition OFF, test for less than 10 ohms between the low reference circuit terminal 1 and ground.
? If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal 2 and ground.
? If less than the specified range, test the 5-volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
? If greater than the specified range, test the 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the ECM.
Verify the scan tool A/C High Side Pressure Sensor parameter is less than 0.1 volts (1 psi).
? If greater than the specified range, test the signal circuit terminal 3 for a short to voltage. If the circuit tests normal, replace the ECM.
Install a 3A fused jumper wire between the signal circuit terminal 3 and the 5-volt reference circuit terminal 2. Verify the scan tool A/C Refrigerant High Side Pressure Sensor parameter is greater than 4.90 volts (425 psi).
? If less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the ECM.
If all circuits test normal, test or replace the A/C refrigerant pressure sensor.

A/C Refrigerant Pressure Sensor
In the engine compartment, on the high pressure refrigerant line

Do you know difference between high an low side lines ?
between alternator an the compressor

Feb 07, 2018 | Cars & Trucks

1 Answer

Question: I have a trailer camper it has a Dometic Rm 2652 Ameri. refrig.


If I remember right on those, the system works off 12 volt--120 volt-- or propane (LP gas). have you tried one of the other power source to run it off of?? If you get the same type cooling results the problem is probably a small leak in the freon system. Those use special internal gas. When I worked for GE the only way to fix them was to replace the complete cooling system which came pre-charged with the special internal gas. Quite expensive after the warranty. Now if you switch power source and one of the other sources make it work the problem will be with the type power you were using when it failed to cool properly. Many people that had system problems with those camper type refrigerators removed them and installed a small regular dorm style refrigerator that could only be run off a 120 volt power system. You would need a 12 volt to 120 converter to run it while on the road if thats what you want to do.

May 01, 2015 | Dometic Refrigerators

1 Answer

It doesn't cool.


Step 1:

Determine if you have power at the outlet, if you have no volt meter use a radio or lamp etc.

Step 2:

If you have power you need to determine if the compressor is running, if it is, is the line entering the compressor cool at all? even after running awhile? assuming the compressor runs, typically it will be not running, or if running, low on refrigerant, if that is the case it will not be worth charging or repairing.

Mar 09, 2013 | Refrigerators

1 Answer

I have an 8 year old Maytag side-by-side refrigerator that stopped cooling. The refrigerator side is not cool at all and the freezer side is marginally cool.


your freezer cabinet need to get all out and open the back wall.
  1. you have 2 element that can be check one is the heating element , two is the thermostat.
  2. you need a volt meter to check them.
  3. if the frost is all over the coils then one of the element i told you before, is bad
  4. if the frost is in one area not all over then you got gas leak.
  5. good luck 911service today .com

Jan 03, 2010 | Refrigerators

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