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
I have had no hot water and have fixed it by removing the inlet screen and cleaning it, also make sure the water flow thingy is spinning in the clear inlet side of the heater. If your on a well or have questionable water algae can affect the flow indacater very gently tap the clear plastic while you have the hot water flowing only if it not spinning . It fixed mine. I ended up dumping bleach in my well to fix mine. Hope this helps someone, nothing like getting ready to go to work and having no hot water!
SOURCE: I have a PowerStar model
Open following link for Bosch tankless troubleshooting resources,
including Bosch contact information, typical manuals, error codes, tech
support, parts, fuel-saver calculator, service bulletins, water heater
forum, fixya links, disclaimers, and links for finding service
technician.
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
Read manual cover to cover, make sure tankless receives yearly maintenance as outline in manual.
Add a comment with your experience so others with same-similar problem can benefit.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.
SOURCE: i have the bosch
how is heating element ? Wasit on with no water running thru it. Does it have a reset?
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