20 Most Recent Bosch Aquastar 125B Water Valve Assembly conversion kit - 8707002499 Questions & Answers


ABSOLUTELY NOTHING YET AS IT HAS NOT FAILED . WHY MAKE A MONEY PIT OF IT BEFORE ANY THING GOES WRONG ?A GOOD PRE-FILTER MIGHT HELP AS MUCH AS ANY THING ELSE

Bosch Water... | Answered on Mar 26, 2019


It could be the thermostat sensor They usually have a carbon buildup. They are easy to install and not that expensive. Good luck

Bosch Water... | Answered on Mar 26, 2019


as with all water heaters they need flushed once in awhile to get rid of sediment in the bottom of the tank . knowing this from the get go most of us never seem to get around to doing it . even myself but I do have a unit that is supposed to prevent this by the dip tube that was built in has circular action in the bottom of the tank

Bosch Water... | Answered on Jan 20, 2019


iF YOU RAN OUT OF GAS, THE LINES MAY NEED TO BE PURGED OF AIR. dISCONNECT THE GAS FLEX AND TURN THE GAS ON TO PURGE THE AIR FROM THE LINE. dO THIS UNTIL YOU GET A STRONG SMELL OF GAS. aLSO, WHEN YOUR UNIT TRIES TO LIGHT, BUT THERE IS NO GAS, IT WILL TRY TO LIGHT THREE TIMES. aFTER THE THIRD ATTEMPT, THE UNIT LOCKS OUT. yOU MAY NEED TO RESET IT BY UNPLUGGING IT, OR IF IT IS HARD WIRED, JUST TURN THE BREAKER OFF FOR 10 SECOINDS AND THEN TURN BACK ON. tHIS WILL RESET THE GAS VALCE TO RELIGHT. gOOD LUCK!

Bosch Water... | Answered on Oct 03, 2018


Error code EA - No sparks for the electrodes
The ionization electrodes are not making sparks when water is flowing. There are many reasons for this problem and here are some; low gas pressure, fan speed is low, wire connections are loose, the air in the gas line, no gas.

Bosch Water... | Answered on Sep 08, 2018


1) BOSCH website shows error codes.
FO does not appear:
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/2400ESTechSupport/Troubleshooting/tabid/1295/Default.aspx

2) I do not see FO error code listed on Internet search
Other FO questions at fixya seem to have no answer:
http://www.fixya.com/tags/error_f0_bosch

3) At this point, I would suggest calling a service technician.
While waiting for service, read manual cover to cover several times.

4) Your manual is valuable resource, and shows the word 'maintenance' and 'troubleshoot' frequently.
Tankless are maintenance heavy, and should be de-limed each year.
U-tube search "delime tankless water heater."

5) Also explore Bosch website for your manual and other valuable information.

6) When service tech arrives, ask that person for tips and tricks about your unit that will help you maintain your water heater.

7) All costs are energy. Install DIY tank-type gas water heater and avoid the whole headache.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Bosch Water... | Answered on Jun 10, 2018


hi julia
after checking on your bosch water heater error code e14
you can try to reboot your system but if code comes back you may need to find a plumber that knows your system to fix your fan system and clear your fault code. this is the site i got info from
http://www.jimsplumbing.net.au/bosch-hot-water-system/troubleshooting-guide/error-code-e14/
p.s. this site is not in the usa

Bosch Water... | Answered on May 20, 2018


when you turn on the hot water tap there is a pressure switch in the line that sends a signal to a gas solenoid to pass the gas and at the same time to the pizo to start the flame
I would have that pressure switched checked as it may be sticking ( internal contamination) or have dirty corroded points
as gas is involved I would suggest a gas technician do the jib
when you turn off the tap, that pressure switch is shut off so the gas is turned off at the solenoid and the pizo is stopped.

Bosch Water... | Answered on Apr 07, 2018


the tank is possibly full of gunk and the thermostat is not sensing the request for hot .flush tank if you can thru the bottom drain a few times if it is bad enough that ou get no water out then only option is to replace with a new unit

Bosch Water... | Answered on Apr 07, 2018

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