Question about Bosch AquaStar Indoor Natural Gas Tankless Water Heater with Vent Hood #125
Bosch Aqua Star Tankless Gas Water Heater D 2400 E (propane) We have had this product for well over a year now. With the temp turned down as low as it will go, we either get scalding hot water or freezing cold water. The water will turn cold if there is some other source of water turned on at the time in the house. It does not matter whether it is cold or hot water turned on in another place in the house.
If we try to adjust the temperature, it will turn ice cold also.
This is not a new problem. It has been this way since the installation.
Is it because there needs to be some sort of flow control valve on either our well or water supply going into the tank less heater?
Please advise us on any ‘fixes’ that we can make to this water heater to make it more like our old ‘conventional’ water heater. Also if you sell the part that may fix this problem, please advise.
Slower the flow hotter the water is how it works . Sounds like the water section is blocked and could well need cleaning out . Draw back with this system is you need a good inlet flow and flow will drop when you open other taps . they are good for a small house a family house not that good . Not much you can do put in a bigger water inlet to heater ?
Posted on Mar 11, 2017
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Posted on Jan 02, 2017
What is your reason to have a recirc line on your water heater does the heater sit to far away from a certain fixture? If you put a pump on your tankless waterheater then your heater will continually fire till the call for hot water is stopped. Yes you normally do need a seperate line installed for a recirc line usually from the water heater to the farthest fixture away. If your problem is taking to long to get hot water then I suggest installing a second heater closer to problem area.
Posted on May 25, 2009
FA - Gas leakage error, gas valve circuit not closing properly
Posted on Mar 15, 2009
The manual says to hold a match near the pilot while the ignitor is
trying. It says that if the unit lights the pilot orifice may be dirty
or clogged. Then the manual says to check
the voltage on the igniter. It should be 1.3 volts DC minimum if it is not means the electronic control box is defective.
Let me know the status ...Kevin
Posted on Mar 29, 2009
BOSH AQ 250 On demand propane water heater ran out of propane, got gas now, but get EC flashing on the display and the unit won't fire? Lost manual, any suggestions. Thanks, Jim
Posted on Feb 23, 2011
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