Reasons for Frequent 10-Second Starts of Car Air Conditioning
1 Answers
Reasons and solutions for frequent starts of car air conditioning: 1. Engagement of the car air conditioning's energy-saving mode: The energy-saving mode is similar to a household refrigerator. When it self-checks and reaches the set temperature target, it shuts off the compressor to stop working, achieving energy-saving effects. When the temperature rises and deviates from the set temperature, it restarts to bring the temperature back on track. Many Japanese car models have this energy-saving mode, which is a normal phenomenon and does not indicate a problem with the compressor. 2. High exhaust pressure and low suction pressure: The presence of moisture in the system can cause pipe blockages, leading to icing. This can be repaired by flushing the pipes with high-pressure nitrogen. Blockages inside the expansion valve can also affect suction and exhaust pressures. Adjust the suction pressure by increasing the opening of the expansion valve and reduce the exhaust pressure by increasing the cooling water flow. 3. Insufficient or excessive refrigerant: The amount of refrigerant determines the system pressure, and abnormal pressure can cause frequent starts and stops of the compressor. Therefore, car owners should regularly check the remaining amount of refrigerant. 4. Relay setting limits are too high: If the high and low pressure limit values are set too high, the relay will automatically disconnect and stop working when the voltage slightly exceeds the limit. Adjust the high-pressure relay limit value appropriately and lower the low-pressure relay limit value.
