Power out of the demolition of the board out, measuring the temperature, the tube temperature resistance is normal, respectively, 15K and 20K low. Power measurement of two temperature sensor voltage, one for the 2.1V, a 4V or so! Low is the ring temperature voltage. So power, with chrome iron directly welded to the ring in the circuit, and the ground connected to the C22 ceramic capacitors, with a table 10K file a test, was short-circuit status quo! Remove not installed, and then start the machine more than half an hour, no longer appear outside the machine downtime!
Waiting for the trial machine, the customer said that this air conditioning during the master please come home repair, fluoride after cleaning the external machine to leave, and his cousin, after the renovation of air conditioning, air conditioning test machine to the evening No thanks. And then do not call the phone, said no time to repair. And finally let me take the 200 back to the store. thanks for watching!
今天接修一台格力空调，型号为KFR-32GW/K。客户电话里说，空调制冷不行，外机会停止工作。过去开机，刚开始制冷正常，等十分钟左右外机就停工了，连外风机也停止转动了！用表测外机电压没有220V，内机还在工作着。看似空调制冷达到了设定的温度停机了。可房间里却热得要命！
断电拆内机板出来，测量环温、管温阻值正常，分别为15K和 20K偏低点。上电测量两个感温器电压，一个为2.1V，一个为4V左右！偏低的正是环温电压。于是断电，用铬铁直接焊出那个接在环温电路中的，与地相连的C22瓷片电容，用表10K档一测，显短路现状！去掉不装，再开机试机半小时以上，不再出现外机停机现象了！
在等待试机的当中，客户说这台空调这期间请过师傅上门来修，加氟后清洗外机就走人了，而且是他的表弟，在售后装修空调，到晚上空调试机就不行了。再打电话也不来了，说没时间修。最终让我收200打道回店。谢谢观赏！