Let it run:
Running the air-con for 10 minutes every week should prevent hardening of hoses and compressor seals failure. Turning on the air-con to its coldest setting and the highest fan speed will clean out any moisture and prevent a buildup from mildew.
Windows up:
When using the air-con, make sure all windows are wound up. This is not only to get the full effect of crisp air circulating the cabin, but to keep your fuel consumption down too.
De-bug:
If not maintained on regular basis, a car's air-con system can become a breeding ground for bugs, fungus and other harmful bacteria - never good news if you suffer from allergies or other medical conditions. Taking your car to an automotive air-conditioning specialist to have it cleaned of any bug is your best bet.
Re-charge:
Around 10 per cent of air-con gas permeates from the system every year, meaning the effectiveness of the system is reduced. Therefore, it is recommended your air-con is re-charged with gas and lubricant at least every two years.
Check for faults:
Regular checks on your air-con will make a big difference in the long run as many components can suffer wear and tear if left unchecked for long periods of time. Leaks are the most common problem. A leak can start from anywhere and needs to be seen to sooner rather than later.
The belt on the compressor could produce a squeaking sound, similar to the squeal of a worn fan belt. This is an early warning your belt could be on the way out.
Dirt found in the air vents can also compromise the efficiency the system has in dispensing the air.
