When the mercury pushes past 40°C in Western Sydney - routinely several degrees hotter than the coastal suburbs - fridges and freezers work overtime just to hold a safe temperature. A big share of the breakdowns we attend across Parramatta cluster in the January and February heatwaves. The good news is that most of the units that fail were already running compromised for months beforehand. Here's what actually helps.

1. Vacuum the Condenser Coils

This is the single highest-impact thing you can do, and it takes ten minutes. Dust and pet hair insulate the coil, forcing the compressor to run longer and hotter to shed the same amount of heat. Do it every six months, more often if you have pets or the fridge sits in a dusty garage.

2. Give It Room to Breathe

Keep at least 5cm of clearance behind and above the fridge for airflow. A unit pushed hard against a wall in a stuffy garage or an unshaded laundry is one of the first to give up in a heatwave, because it has nowhere to release the heat it's pulling out of the cabinet.

3. Check the Door Seals

Close the door on a sheet of paper and try to pull it out. If it slides out easily, warm air is leaking in continuously, and the compressor has to run almost non-stop to compensate - exactly what you don't want in summer. Perished seals are a cheap fix with an outsized payoff on your power bill and your fridge's workload.

4. Don't Overpack It

Cold air needs room to circulate to cool everything evenly. An overstuffed fridge - common over the Christmas and New Year period - blocks airflow around the shelves, leaving some items warmer than they should be even though the thermostat reads normal.

5. Book a Check-Up Before Summer, Not During It

If your fridge has been making a new noise, running longer than it used to, or struggling to hold temperature through the cooler months, it's already telling you something. Getting it looked at in spring means a small, cheap fix instead of an emergency call-out (and a bin full of spoiled food) in the middle of a 40°C week.

Running a Commercial Kitchen or Coolroom?

The same principles apply at commercial scale, with more at stake. If you run multiple units, a scheduled maintenance arrangement is dramatically cheaper than an emergency breakdown mid-service on a Saturday night. See our commercial refrigeration services for details.