Walk In Freezer Evaporator Fans Not Running

If the condenser fan is not running check the fan blades for obstructions.

Walk in freezer evaporator fans not running.

If your freezer has electronic controls instead of a dial a failed relay on the electronic control board or a bad control panel can prevent the compressor from getting power. Not running if the freezer has electrical power the inside light turns on but the compressor won t run a failed cold control thermostat could be the problem. The freezer light should turn off and the evaporator fan should kick on after a few seconds. If it turns on you should be able to clearly hear the electric motor activate and then a low hum from the fan spinning.

Check fan motor and its electrical circuit. See corrective steps for low suction pressure. If the fan blades do not spin freely the fan motor bearings are worn out and the fan motor should be replaced. The condenser fan motor draws air through the condenser and over the condenser coils.

In many cases the problem is do to the fact that the evaporator fan cannot operate. If the evaporator fan doesn t run in the diagnostic test mode then you could have a defective control board but the problem could also be a bad evaporator fan or a break in the wiring. Clean walk in cooler and walk in freezer condenser coils. According to repair clinic other possible reasons include dirty evaporator coils a faulty thermostat or a bad evaporator motor compressor.

Insufficient refrigerant in system. If the fan motor does not turn on while you hold the switch the motor is probably bad. Next ensure that the blades spin free ly. Unplug the refrigerator and remove the screw that holds the control box.

If your refrigerator isn t getting cool the fan is just one of many possible reasons. Let s check the wiring first. Physically obstructed if the fan is not running unplug the refrigerator and remove the evaporator fan cover. A loud blowing sound from the motor doesn t mean it s bad either.