清洗是汽车空调器使用前必须进行的一个重要步骤。及时地对冷凝器、蒸发器表面尘污进行处理,不仅可增强制冷效果,同时也保护了管道,减少各器件的消耗。
1. 清洗冷凝器
冷凝器在汽车的最前面,脏堵情况比较严重,特别是冬、春季节风沙大,会沉积不少泥土,影响冷凝器散热,降低空调器的制冷效果。清冼时,如仅用水枪冲,仅能除去其上的浮土,最好把冷凝器取下来,反向吹洗,或用毛刷除去杂物污垢,再用水清洗干净。
2. 清洗蒸发器
虽然蒸发器在驾驶室内,脏堵情况会相对轻些,但因冬天使用暖风,一般采用室外与室内循环时,易带入灰尘和污物,这些污物会附着在蒸发器表面,蒸发器内混入冷凝水变成泥,既影响风量又影响换热效果。若清洗不干净,便会通风不畅,甚至带有异味而影响夏季的制冷效果。所以,—般原装空调的蒸发器至少每隔 3~4年都要拆下来进行一次彻底清洗。
3. 清洗空气滤网
在蒸发器的进风口处,一般都装有空气滤网,滤网堵塞会使风量减小。空调器滤网应每周清洗一次,以免车内的灰尘、杂物吸附在空气滤网上而阻碍空气流通,造成制冷量不足。如发现堵塞,可拆下蝴蝶螺栓,打开蒸发器检查门,卸下滤网,然后用压缩空气或带有中性洗涤剂的温水清洗,并用水龙头冲洗滤网的反面,也可将滤网浸在水里用毛刷洗污物,然后将其风干后即可装复使用。
滤网由于安装在蒸发器上,往往不被人们所重视,当滤网堵塞严重时,如果驾驶员不知道要清洗蒸发器入风口滤网,由此就会造成空气流通不畅,引起车内冷风不足,而误以为空调器有故障。曾遇到过多例私家车主从很远的地方将汽车开到维修部说是空调器制冷不良,但只对滤网进行彻底的清洗后,问题即可得到解决的情况。
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