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车型:配置272发动机。行驶里程:145741km。故障现象:根据客户描述车子很长时间没使用过,使用时发现空调不制冷。故障诊断:根据维修经验,空调不制冷因素比较多。首先根据客户描述试车,空调确实不制冷,按空调A/C开关没有反应,怀疑是制冷剂的问题。连接压力表,发现低压在300k Pa左右,高压在1100k Pa左右,很明显制冷剂不是影响空调不制冷的主要因素。连接诊断仪读取存储故障:9304M13(热水循环泵):断
Model: Configuration 272 engine. Mileage: 145741km. Symptom: According to the customer described the car for a long time not used, found that the use of air conditioning is not cooling. Fault diagnosis: According to the maintenance experience, air conditioning is not cooling more factors. First, according to the description of the customer test, air conditioning is not cooling, air conditioning A / C switch no response, suspected to be refrigerant problems. Connect the pressure gauge and found that the low pressure at about 300k Pa, high pressure at about 1100k Pa, it is clear that the refrigerant is not the main factor affecting the air conditioning is not cooling. Connect the diagnostic device to read the stored fault: 9304M13 (hot water circulation pump): Off