Question about Bosch Water Heaters AquaStar 125 series Outdoor Gas Water Heater - 125BO

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Manual for the bosch aquastar aq-125-blp

I need to clean the intake filter and need a diagram

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gary1121
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SOURCE: Looking for Outdoor Tankless propane water heaters

it will tell you right on the box if it for indoors or out doors either way they have to have a cover over them,,

Posted on Jun 09, 2009

SOURCE: aq 125 blp Bosch tankless water heater, pilot

Natural Gas: Pilot burner or orfice may need to be cleaned. Pg 11 manual.
http://www.boschhotwater.com/Portals/7/TechManuals/125BL_English.pdf
Most tank and tankless gas water heaters today suggest annual cleaning and maintenance of burner.

Open following links for Bosch troubleshooting resources:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html
http://www.boschhotwater.com/HelpfulResources/TechnicalSupport/BoschAquaStarModels/125BLTechSupport/Troubleshoot/tabid/474/Default.aspx

Posted on Jun 14, 2011

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1 Answer

Aquastar 125 blp


Most of these have a safety switch, that would make the pilot shut down. Also check for rust deposits in your fuel line, and pressure.

Aug 23, 2014 | Bosch AQ125BO LP AquaStar 4.3 GPM Outdoor...

1 Answer

My pieps froze and now my tankless water tank leaks how do i get a new part



Bosch Aquastar 125B Water Heater Repair Parts Pre January 2003

Bosch Aquastar 125B Repair Parts Selection Grid

This web site has Aquastar 125B parts. It appears your unit was manufactured 7/7/02, so that is what I pulled up for you. At least this will be a start for you to locate the part. I hope these links work.






Bosch Aquastar 125B Water Heater Repair Parts Post February 2003

Mar 27, 2014 | Bosch AquaStar Indoor Natural Gas Tankless...

1 Answer

Bosch aq 125 bng


sounds like pressure relief valve is stuck closed free of or replace

Sep 24, 2013 | Bosch AquaStar Indoor Natural Gas Tankless...

1 Answer

Bosch aq 125 no water preasure


Clean water filter yearly or monthly. Page 16 example manual.
http://waterheatertimer.org/pdf/Bosch-125BO-NG-LP-outdoor.pdf
Shut off the installer supplied cold water supply valve.
Disconnect water pipe going to the back of the water
valve. Remove filter from back of water valve. Clean the
filter and inspect for damage. Replace if the filter is at all
damaged. Inspect the top of the water valve for signs of
a water leak or corrosion. If present, rebuild the water
valve.
Bosch service bulletins:
http://www.bosch-climate.us/bosch-hot-water/aquastar-service-bulletins/38b-125-series-bulletins.html
Descale heat exchanger yearly.
http://waterheatertimer.org/pdf/Bosch_Descaling-heat-exchanger.pdf

Sep 29, 2012 | Bosch Water Heaters AquaStar 125 series...

1 Answer

Bosch aq 125 b manual


Open following links for possible manual.
http://www.tanklesswaterheatersdirect.com/shop/tanklesswaterheaters/manuals/125B_manual.pdf
http://www.tanklesswaterheatersdirect.com/shop/tanklesswaterheaters/manuals/125BS_manual.pdf

When searching for product manuals on the internet, add .pdf to search parameter.
Search: bosch aq 125 .pdf

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Oct 03, 2011 | Bosch Water Heaters AquaStar 125 series...

1 Answer

I have a Bosch AquaStar AQ-125-BNG tankless water heater. It has worked very well until recently. The problem: The hot water at the tap is turned off, the flame on the main burner keeps burning and...


there is a small dia copper pipe which has a thermal coupling on it the end of it sits in the flame of the pilot light,
if it fails which it does after about 25-15 months,it shuts down the gas burner

Jul 05, 2010 | Bosch AquaStar Indoor Natural Gas Tankless...

1 Answer

Heater not getting started.batteries are o.k.


Sounds like the 125X unit. This unit has a brass water valve. Be sure to service the water valve every 1-2 years. It is the most common cause of the 125 series heater not working. There is also an inlet filter screen on the water valve that needs to be cleaned or replaced.

Mar 15, 2010 | Bosch AquaStar Indoor Natural Gas Tankless...

1 Answer

Looking for Outdoor Tankless propane water heaters


it will tell you right on the box if it for indoors or out doors either way they have to have a cover over them,,

Jun 09, 2009 | Bosch AquaStar Propane Tankless Water...

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