Freezer Working Overtime?

With the heated summer months quickly approaching, it’s time to start thinking about getting ready for those long, hot days when it seems like you just can’t cool off! You can sometimes find relief though in a refreshingly cold drink or an Icy pole treat that you keep stocked in the freezer. But just to make sure that your deep freezer is ready for the Australian summer heat and can keep those frozen treats frozen, here are some practical maintenance tips to review so that you can stay as cool as a cucumber:

  1. Condenser Coils
    Freezers have a lot of work to do to keep humming along, and the hardest working components in the freezer are the motor and the condenser. Deep freezers, especially older ones, often fail to cool sufficiently because of dirty condenser coils. The heat from the condenser must be able to flow away from the unit and will stop working if it’s blocked. When you keep the coils free of dirt, dust or any accumulation, the condenser is able to adequately cool off the hot refrigerant gas into a liquid, which will then transfer that heat away from the unit. Condenser coils can be vacuumed every 6 months with a hose.
  2. Condenser Fan
    While we’re on the subject of the condenser, let’s also talk about checking the condenser fan. Each time the freezer’s compressor starts, the condenser fan should also start. Often times, dirt and debris gets into the motor’s bearing and will prohibit the fan from working. If the fan fails to start when the compressor starts, you may need to lubricate the shaft and bearings with appliance oil if the blades aren’t turning at all. You can also use a digital multimeter (DMM) if the fan is in fact turning, but is going too fast, indicating that the motor windings have become worn. It’s advisable to place a service call for this since further testing may be required to see to what extent the fan and/motor may be affected.
  3. Check the Thermostatic Switch
    Thermostatic switches go bad, and there’s no way to predict when that will happen. To stay ahead of any surprises, test the thermostat to see if it needs replacing. Do this by performing a bypass test, where you will unplug the freezer, remove the control and using a short piece of wire attached to alligator clips, ignite its terminals to see if the freezer gets cold by doing this. Test this further when you plug the freezer back in and if it does get cold, you’ll need to replace the switch. You can replace this switch yourself or avoid any further issues by having a professional Matic technician troubleshoot, test and replace any defective thermostat parts. They can also advise you on anything else that may be a potential problem.