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1 泄水孔堵塞一辆沃尔沃轿车,其暖水箱因漏水而被更换,但是不久在车厢内驾驶座处地板上出现了积水。据此,用户怀疑暖水箱的更换技术或暖水箱的品质有问题,要求返修。笔者通过询问和检查了解到:在更换暖水箱后,没有发生过暖水箱缺水的情况,并且暖水箱及其接口周围干燥;风窗玻璃是原车的,没有更换过。对这两点进行分析后认为:如果积水是暖水箱渗漏造成的,则必然会发生暖水箱缺水的情况,既然现在暖水箱不缺水且其接口周围是干燥的,暖水箱就不可能渗漏水;原车风
1 A scupper blocked a Volvo sedan, whose hot water tank was replaced due to water leaks, but soon enough water was found on the floor in the driver’s seat inside the car. Accordingly, the user suspects the replacement of warm water tank or warm water tank quality problems, requiring rework. The author through the inquiry and inspection learned: after replacing the warm water tank, there has been no shortage of water in the warm water tank, and warm water tank and its interface around the dry; windshield is the original car, not replaced. Analysis of these two points that: If the stagnant water is caused by the leakage of warm water tank, it is bound to occur in the case of lack of water in the warm water tank, since now the water tank is not dry and its interface is dry, warm water tank is not May leak water; the original car wind