With over 250 parts in its A/C range, Tridon says it is here to keep your car cool in summer and warm in winter

Tridon’s range of heater fan resistors and air conditioning pressure sensors have reportedly been extensively researched to give you maximum market coverage.
As such, Tridon says no longer do you need to go to the dealer to purchase high quality direct replacement air conditioning parts.

What is a heater fan resistor?
A heater fan resistor is designed to control the heater/air conditioner fan speed inside the vehicle. It operates by controlling the current flow to the fan motor and this in turn changes the speed of the fan.

Why do they need replacing?
Constant adjustments to the fan speed generate wear and tear on the terminals of the resistor. This can lead to shorting and in turn will lead to the resistor being “burnt out” and eventual failure. Common symptoms of a faulty heater fan resistor include:
• Non-function on a particular speed
• Constant running
• Working at the same speed regardless of setting
• Complete non-function

What is an air conditioning pressure switch?
The air-con pressure switch is a safety device that is fitted to most modern A/C systems. It is placed in-line with the cooling pipes and monitors the air-conditioning system pressure.
If the pressure rises to dangerous levels or if there is a sudden drop in pressure, it will shut off the compressor. This prevents damage to internal air-conditioning components and also to the compressor.
These switches do require replacement over time as the air conditioning may cease to function or a vehicle fault light will appear.
Tridon says its range of A/C switches has been comprehensively researched to provide a broad coverage of high quality OEM replacement parts.
It says these have been developed to meet or exceed original equipment manufacturer specifications, making them direct replacement for the original switches in the vehicle.
Live application data is available for all Tridon parts on the Tridon Part Finder at for the most up to date new vehicle applications and part numbers. All applications are also available on all major trade electronic catalogues, says Tridon.

For more information, visit or call 1300 362 263.