Hi @sintax47
What is the model number of the refrigerator?
If it is a "larder" type refrigerator i.e. refrigerator compartment only, no freezer compartment, is the compressor motor running?
If not try disconnecting the power to the refrigerator, wait 5 minutes and reconnect the power and check if it starts OK and that the compartment begin to cool down. Allow some hours for it to reach the set operating temp.
If it is there may be a sealed system problem.
If it is a refrigerator with a refrigerator compartment and a separate freezer compartment:
If the refrigerator compartment is too warm but the freezer compartment is OK, it may be due to the evaporator fan, which is located behind a panel at the back, inside the freezer compartment not operating.
This fan is used to drag air across the freezing cold evaporator unit (operates at -18°C) which is also located there and blows the icy cold air throughout the freezer compartment and the refrigerator compartment, cooling them down to their set temperatures. The freezer temperature will be OK because the evaporator unit is located in the freezer compartment so the compartment will remain cold, but the refrigerator compartment relies on the icy cold air being blown there by the fan
If the fan is not operating this could be due to a faulty fan, no power to the fan or more likely that it is iced up and stopped due to a problem with the auto defrost function of the refrigerator.
No auto defrost could be due to a faulty defrost heater, faulty defrost thermostat, blocked drain line from below the evaporator unit to the evaporator pan under the refrigerator or a faulty control board.
Check if you can hear if the evaporator fan inside the freezer compartment is running. It will run as long as the compressor motor is operating and will stop when a door (either door) is opened and start again when the door is shut. Do not confuse this fan with the condenser fan, which is outside the compartments, under the refrigerator near the compressor motor. It can run at any time whether the doors are open or not.
If it is not running at all, turn off the refrigerator, disconnect the power to the refrigerator and remove the panel, inside at the back of the freezer compartment to expose the evaporator unit and fan. Access is through the door at the front. Check if it is covered and blocked up with ice etc.
If the fan is clear, reconnect the power to the refrigerator and check if the fan operates when you manually operate the door switch which may be located in the door jamb. This fools the control board into thinking that the door is shut. If there is no switch visible then it will be a magnetic switch hidden somewhere in the door frame which makes it more difficult. If this is the case, mark a fan blade with a marker pen and note the position of the blade and then turn on the power and close the doors, allow the refrigerator to start up and run for a minute and then open the door and check if the fan blade has moved position or not.
If both the freezer compartment and the refrigerator compartments are too warm, is the compressor motor running?
If not try disconnecting the power to the refrigerator, wait 5 minutes and reconnect the power and check if it starts OK and that the compartments begin to cool down. Allow some hours for them to reach their set temps.
If it is there may be a sealed system problem.
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