STP explains air conditioning checks

STP explains air conditioning checks

It’s common practice to check the oil, fluids, and tyres, so why not the air conditioning too? STP explains the simple process to giving customers a more complete offering.


As commercial vehicles are being serviced in time for summer, it’s important to ensure that workshops are giving your customers the full service available. Once a vehicle is three years old, just a simple check is needed on the low side port. In many cases, a simple ‘top up’ is all that’s required.

The STP Air Con Recharge range allows technicians to properly maintain A/C systems without the need for Capital Investment or training, as it does not involve R1234yf or R134a refrigerant recovery at any stage. The STP advanced additives range not only enables the technician to recharge the air conditioning, but also to seal common rubber and metal leaks and lubricate the air conditioning compressor.

The 10 minute service can be used alongside recovery machines to achieve a greater number of services during peak times. After all, recovery, vacuum, test, and recharge can take up to 45 minutes.

The job can be completed in three easy steps, using the STP Air Con Recharge, a Reusable Trigger Dispenser Gauge, and a Test Thermometer. The STP Air Con Recharge range is able to completely refill two to three vehicles, and comes in a refillable container that carries a refundable environmental recycling and refilling deposit.

Step one

To refill the air conditioning correctly, firstly remove the port cap from the air conditioning’s low pressure service port and attach the gauge to the quick connect fitting. The gauge will only fit the low pressure connect, so it’s safe, calibrated, and colour coded for ease of use.

Step two

Start the engine and set the air conditioning to the lowest engine, running the vehicle for two minutes, and place the thin pencil-type gauge thermometer in the air vent inside the vehicle. This will show you the cabin temperature after two minutes.

Step three

Once the reading has been taken, referring to the pressure gauge chart on the canister will inform on the correct diagnosis, and whether the refrigerant needs topping up. If it does, which is often the case, keep the engine running, shake the canister, and connect it to the gauge. A simple squeeze of the trigger will dispense the refrigerant into the system, and the gauge informs when the job is done.

In conclusion, the STP Air Con Recharge range provides the trade with a cost-effective solution to recharge the refrigerant, seal common leaks, and lubricate the air conditioning compressor.


For more information online, click here.

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