A/C LEAK DETECTION & FAULT FINDING 

Has Your Air Conditioning Stopped Working Completely? Are You Concerned That It Has A Leak or Fault?

If your vehicle air conditioning has stopped working completely there may be a leak somewhere within the system. We always recommend carrying out a Nitrogen Leak Test in advance if your air con has stopped working. It is also a legal requirement to Nitrogen Leak Test an ac system that is leaking before it can be regassed, as air con refrigerant is harmful to the environment.

During a leak test we will first remove any existing refrigerant from the system (unless it is already empty), and then fill the system with nitrogen. We then closely monitor the system whilst it is under pressure to see whether the pressure remains constant or drops. If a leak is present we can detect it through a 'hissing' noise and diagnose the part at fault.

 

In some instances, we also use a range of other leak detection methods including: leak detection agent, which will bubble / foam on contact with a leak; UV light if the system has previously been filled with UV leak dye; and electronic refrigerant leak detector or 'sniffer, which detects a leak using a sensor.  A fully sealed system is integral to a correctly functioning air conditioner. It is very important to keep the system well maintained with regular services. 

As well as leak detection we also offer air con fault finding and diagnosis, so whether it's a faulty pressure switch, faulty pump or an electrical fault, we can help identify any problems and advise on what air con repairs are required.

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