天气预报 > 其他 > 美的热水器为什么用着突然没电
美的热水器为什么用着突然没电
更新时间: 2020-09-06 00:00:00  

1、发热管绝缘性能下降,其绝缘电阻值不稳定,当漏电的电流超过某一数值,漏电保护插头会立即处理,需要检查排除或更换发热管;

2、发热管与温敏开关探头经金属直接导热,若导热过快、过高,会产生误动作处理。分别将两表笔与发热管外壳及其任一电源接线端相接,若冷态绝缘电阻小于7M欧姆,需要更换发热管;

3、其它带电元器件与机壳之间产生漏电,需要检查排除或更换元件;

4、漏电保护插头与劣质插座接触不良,因过热而产生误动作处理,需要更换插座;

5、保护插头或温敏开关出现故障,需要更换温敏开关或漏电何护插头。

关键词: 热水器 为什么 突然

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