What To Do If Your Air Conditioner Stops Working

Vehicle Air Conditioner Failure Tips in Sudbury, ON

With the summer season in full swing, the last thing you want is for your vehicle’s air conditioner to stop working. An efficient A/C system is essential for a comfortable driving experience, especially during the hot summer months. Should you find yourself in this situation, don’t panic as our team here at Auto Depot Sudbury has come up with a step-by-step guide on what to do if your car's air conditioner stops working.

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What To Do If Your Vehicle Overheats

Summer vs. Winter Tire Pressure

1. Check the Basics

If you suspect that your car’s A/C system may not be working properly, try not to panic and start by trying out the simplest solutions:

  • Make sure that the A/C is turned on: this may sound obvious but for your air conditioner to blow cold air, ensure that the “A/C” button is engaged on your vehicle’s climate control array 
  • Adjust the temperature settings: check to see if your climate control system is set to blow cold air. Do this by setting the climate control system to the lowest possible temperature or by turning the knob/pressing the buttons towards a blue-coloured setting
  • Check the air vents: ensure that the your air vents are in the “open” position, usually noted by a symbol with three flowing lines stacked on top of one another
Stay Calm & Pull Over

2. Examine the Refrigerant Level

Low refrigerant is a common reason for an air conditioner to stop working. Over time, refrigerant can leak from the system, reducing its cooling efficiency.

  • Look for leaks: Check under the hood for any oily residue around A/C components, which could indicate a refrigerant leak. Puddle marks under your vehicle may also indicate a refrigerant leak.
Turn Off the Engine

3.  Listen for Unusual Noises

Strange sounds when you turn on your A/C can indicate mechanical problems within the air conditioning system.

  • Grinding or squealing noises: These sounds might point to a failing compressor or a loose belt.
  • Hissing sound: This could indicate a refrigerant leak.

If you hear any unusual noises, it’s advisable to have one of our certified technicians diagnose and fix the issue.

Safely Inspect the Vehicle

4.  Inspect the Fuses and Relays

Your car's air conditioning system relies on fuses and relays to operate. A blown fuse or faulty relay could be the culprit.

  • Locate the fuse box: Check your vehicle’s owner manual to find the fuse box location and the specific fuse for the air conditioning system.
  • Check the fuse: Remove the fuse and inspect it for any signs of damage or burning. If it’s blown, replace it with a fuse of the same amperage.

Should you have any issues with this step or any of the steps we’ve listed out, our service professionals at Auto Depot Performance Group would be more than happy to assist you.

Book Service at Auto Depot Performance Group

A malfunctioning air conditioner can make summer driving uncomfortable, but by following these steps, you can often identify and resolve the issue. Start with basic checks, inspect critical components, and if needed, seek professional help. Stay cool all summer long and book a service appointment at Auto Depot Performance Group, today!