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故障现象:一辆2010款途安出租车,驾驶员报修空调无热风。故障诊断:接车后,尽管把温度设置到最高位(即图中左侧开关上标有26的完全制热挡位),但从中间出风口出来的风始终与室温(当时外界温度为18℃)差不多。检查发现温度调节阀门(由V68温度调节阀门电机带动)始终停留在把热源关死的位置上,更换该电机也不见好转。解码器上的故障信息显示控制单元J301有问题。于是更换了J301半自动空调控制单元,经引导性功能选择基本设定之后,温度调节阀门开始随设置温度高低而有所变化。该车行驶一天后又返回,驾驶员还是抱怨中间出风口温度不热,但脚部出风口热风正常。
Symptoms: a 2010 Touran taxi, driver repair air conditioning without hot air. Troubleshooting: After the car, although the temperature is set to the highest position (that is, the figure on the left switch marked with a full 26th gear), but out of the middle outlet wind always with room temperature (when the outside temperature is 18 ℃) almost. Inspection found that the thermostat valve (driven by the V68 thermostatic valve motor) always stays in the position of the heat source is turned off, replace the motor nor improved. The error message on the decoder shows the control unit J301 has a problem. So replace the J301 semi-automatic air conditioning control unit, the basic set by the boot selection function, the temperature control valve starts with the set temperature levels vary. The car after a day and return, the driver still complained about the middle outlet temperature is not hot, but the foot outlet hot air normal.