嗨&提前感谢看我的问题。
我在我的小房子里住了十年。当我搬进来,热水提供的“红环病Powerstream的快热式热水器附近厨房的水槽&还提供一个脸盆在浴室正上方(约2米)。管道本质上是一个小电路提供厨房的水槽与浴室面盆和浴缸和淋浴的刺激正上方。我独自生活,所以只有一个水龙头使用在任何时候(从不洗澡)。住在那里大约一年之后,Powerstream开始失败时不关闭洗手间水龙头关闭&沸水管中的元素,因此总是跳闸内部TCO。经过几次重置我认为单位已经失败了。所以我代替整个单元与一个相同的。两年后,相同模式的失败,与楼上的面盆龙头的使用。再一次,我咬子弹和安装一个全新的相同的单位。两年后同样的问题! I fitted yet a third & after the same period approx- same failure. I note that the pressure switch in these units have a thin-bore tapping off the cold feed to an enclosed rubber diaphragm actuator (I took one apart). Could this diaphragm somehow stretch over time allowing unit to remain on with no flow? I will consider another design of unit but I need to know that the issue is not related to the pipework first. I might add that I live in a soft water area (Greater Manchester) and dissembly of the old units shows no evidence of any restrictions such as scale build-up.Help! I can provide photos of the set-up if these will help. Many thanks, Graham.