Question about Water Heaters
We've had the hot water running while trying to light it. This used to work but has little effect now. We've persisted but for some reason it won't ignite
May need a thermo couple small copper tube screws in by the pilot lite
Posted on May 06, 2014
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Posted on Jan 02, 2017
SOURCE: gas hot water tank, pilot light
Look inside the water heater when it is heating the water, the flame should be blue. If it has yellow tips on the flame, it needs an adjustment to the air shutter. There is a nut on this air shutter to make this adjustment. This adjusts the air gas mixture. You may first try just simply tapping on the burner lightly to loosen any debris that may have built up and vacuum it out. MAKE SURE YOU TURN OFF THE GAS BEFORE CLEANING THE BURNER!! Also, check for drafts that may be blowing out your pilot light, Furnace register or outside drafts on windy nights. Some water heaters have an automatic shut down if the water heater gets too hot, so don't have it set to its hottest setting. Most water heaters only last about 10 years or so, It could be you are ready for a new one....Joe
Posted on Dec 16, 2008
Most likely it's time to replace the thermocouple, the safety device that makes sure the pilot is lit. New thermocouples are cheap and you can find them at most hardware stores and the big-box places (Home Depot, etc.)
Here is a site with basic information to get you going.
Posted on Apr 08, 2009
It is most likely the water valve stuck open, telling the controls to heat water, that it thinks is flowing through it, but without actual flow it overheats. Depending on how comfortable you are with taking it apart yourself, you could open the valve to see if it just needs cleaned out, or if you have a ruptured diaphragm or some other cause.
Posted on Apr 22, 2009
Thermo coupler may be defective. it controls the main gas valve by closing main if pilot is out. make sure thermo coupler bulb is positioned over and near tip of pilot flame, but not in the flame. Thermo couplers are inexpensive and easy to change out.
Posted on May 06, 2009
SOURCE: I have a Bosch Water
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
Before calling service technician, read manual for fault finding and possible solutions.
Read manual cover to cover, make sure tankless receives yearly maintenance as outline in manual.
Following links talk about keeping pilot lit, and describe location somewhat. Bosch water wizard has standing pilot light.
1) The manual does not show diagrams you asked for.
2) Website that sells Bosch parts does not show parts for water wizard, nor does Bosch site for parts: Instruction manual says: replace pilot injector
3) Searching "pilot injector for Bosch Water wizard" turns up fixya questions which is generally bad news for do-it-yourselfer because it means information sources are through service technician.
4) As a general rule, tankless are not do-it-yourself repairs or installation because they are affected by so many internal and external factors, including air quality, air flow, venting, other gas appliances, gas pressure, gas supply, water pressure, water flow, plumbing problems, water quality, plus internal parts and including any combination of things listed above..
Replacement parts each come will disclaimer.
Add a comment with your experience so others with same-similar problem can benefit.
Send some photos so the internet can see the problem.
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.
Posted on Apr 03, 2011
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