12/24v Fridge or Freezer
Q 1. My 12v 24v Fridge or freezer is not cooling at all?
Q Does the compressor run?
NO The fault is electrical - see Electrical Testing Manual
Q Have you isolated the thermostat?
NO Link out the thermostat on the compressor's electronic controller - see Checking Thermostat Manual
Q Have you checked the electrical installation?
NO Use the Testing Electrical Installation manual
Q Is your compressor a Danfoss BD35 or BD50?
YES Download the BD35 & BD50 Fault Diagnostics manual
YES If the compressor runs continually, the problem is likely to be a loss of gas - see Checking Refrigerant Charge on R134A Systems to confirm
Q 2. My 12v 24v Fridge or freezer is not getting sufficiently cold?
Q Is the Thermostat set correctly?
NO Turn the thermostat to a colder setting
Q Does the compressor run continually?
YES Check the refrigerant charge - see Checking Refrigerant Charge on R134A Systems
Q Is the evaporator (ice box) frozen over with heavy frost or ice?
YES Your cabinet may be faulty - see Cabinet Check List
Q Is the equipment correctly specified and installed?
NO See our correct evaporator page
Q3. Fridge/freezer too cold?
If your fridge is too cold and you find that you are freezing your tomatoes and salads, assuming the plate has been specified correctly, the most likely cause of the problem will be the thermostat. There are three possible reasons:-
- the thermostat is not set correctly
- the probe is not sensing correctly
- or the thermostat is faulty
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