Troubleshooting chart for vehicle air conditioning systems

Troubleshooting chart
for vehicle air conditioning systems


The professional tips chart provides help and support when troubleshooting the air conditioning systems. This clearly arranged diagnosis guide will help you find the typical functional errors that may occur in air conditioning systems for vehicles


AC = air conditioning
LP = suction pressure
HP = high pressure

V = compressor with suction pressure regulator
F = compressor with constant displacement

How to use the chart

Professional tips can only be performed properly if the appropriate workshop equipment is available. The required equipment can be found in our workshop catalogue. Follow the operations listed on the following pages step by step. Only then can you be certain to achieve a good result from your troubleshooting efforts.

Professional standard

ASC by WAECO is, and has been for years, the abbreviation for excellent quality and cutting-edge technology in A/C service equipment. The series is constantly improved and complemented to meet future requirements. All ASC service units are state of the art and fully automatic

Be a successfull A/C professional

Use our comprehensive range of equipment for service and repairs on automotive A/C systems to make your company an efficient and successful A/C workshop. Polar bear Eddie supports you with useful information and advertising material that will keep you an Eddie nose length ahead of your competitors!


Dometic UK Ltd.
Dometic House, The Brewery,
Blandford St. Mary
Dorset DT11 9LS

Tel +44 (0) 344 626 0135
Fax +44 (0) 344 626 0143