SOURCE: powerstar bosch tankless water heater ae3.4
Yes the device is faulty. the unit should not heat water unless a tap is turned on. Call in a service rep to assess the problem. Do it quickly your description doesn't sound good.
Please rate this response and Good Luck Phil
SOURCE: i have the bosch
how is heating element ? Wasit on with no water running thru it. Does it have a reset?
SOURCE: Noritz tankless gas water heater.
Hi,
The unit is plugged up with mineral buildup from the water going through it... it will need to be cleaned internally....this is done by running an acid solution through it to clean out the mineral buildup...
Then it will work again...
heatman101
SOURCE: PowerStar. Model 45-557701
Hot Water Hot to Cold And back. I had that problem for 2 years. I had a very large shower head from the time I installed the tank-less hot water heater and the water temp would change from one extreme to another. Over time my shower head had stopped working as well as it did so I bought a smaller shower head and installed it and amazingly my water temperature quit changing temperature. I now turn my water to what temp I want and it stays there. It's been working correctly for 6 months now ... until yesterday and it quit working completely which is the reason I'm on here. lol
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