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Bosch water wizard 780 -relighting the pilot light.

My Bosch water wizard 780 pilot light went out and I am having trouble relighting it. The instructions have faded and are no longer visible. After playing around with it the button with the 'O' on it is now stuck down. Is anyone able to help?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Bosch water wizard 600 pilot light out

depress single flame button in whilst all other buttons are out and depress igniter button a few times it should light. hold single flame button in untill pilot warms up.

Posted on Aug 23, 2009

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Dplumber
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SOURCE: The off button on my bosch hot water service want

Turn the Gas off at the main supply to the unit and contact Bosch ASAP. Do not try and refire the unit.

Posted on Sep 08, 2010

SOURCE: I have a Bosch 10P

What leads you to suspect that pilot blew out instead of another problem?
Fact that pilot will not relight, indicates other factors at play.

Open following link for Bosch troubleshooting resources including manual, and Bosch contact info:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Best place to start is your manual.
http://waterheatertimer.org/pdf/Bosch_10P-installation.pdf

1) Manual recommends 'cleaning by authorized person, never less than once a year.'
Tankless water heaters, and most newer tank-type gas water heaters, are highly technical and finicky devices that require continual maintenance, with tankless requiring 'yearly' maintenance while tank-type require 'periodic' maintenance.
2) Troubleshoot in manual says 'no gas supply' or 'blocked pilot' replace pilot injector

Upvote the help.
And 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 May 21, 2011

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2 Answers

Wher is pilot light


Why will my pilot light on the gas water heater not stay lit for ...

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Jul 28, 2011 - The pilot light went out on my gas water heater. I followed the ... This could be from a valve not being all the way open. It could also be from a ...

How To Relight Your Pilot Light On Your Water Heater ...

? 7:54
https://www.youtube.com/watch?v=gqM7kMkkFAI
Apr 15, 2013 - Uploaded by TipsNNTricks
How To Relight Your Pilot Light On Your Water Heater. TipsNNTricks .... I answer the following questions in this video. How can I relight my pilot ...

How to Light a Water Heater (with Pictures) - wikiHow

www.wikihow.com/Light-a-Water-Heater

wikiHowJump to Questions and Answers - If the pilot light doesn't relight or goes out immediately after ... if you are unable to light the water heater after several attempts.

Jan 13, 2016 | Water Heaters

1 Answer

How do you relight the pilot light after it has blown out or the gas supplied has been turned off.


Instructions for relighting pilot on Tankless water heater are in the product manual:
Model number is on label located on side of unit.
Open following link to help identify product and download possible manual:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

For tank-type water heater, the lighting instructions are usually printed on side of tank in addition to the product manual.

Find the model number and re-post question with as much information as possible for more assistance.

Jul 30, 2011 | Bosch Water Heaters

1 Answer

I have a Bosch 10P water heater. Pilot light has blown out and while trying to relight the pilot the stop button has been pushed down and won't pop back out. What am i doing wrong? Cheers


What leads you to suspect that pilot blew out instead of another problem?
Fact that pilot will not relight, indicates other factors at play.

Open following link for Bosch troubleshooting resources including manual, and Bosch contact info:
http://waterheatertimer.org/Troubleshoot-Bosch-Tankless-water-heater.html

Best place to start is your manual.
http://waterheatertimer.org/pdf/Bosch_10P-installation.pdf

1) Manual recommends 'cleaning by authorized person, never less than once a year.'
Tankless water heaters, and most newer tank-type gas water heaters, are highly technical and finicky devices that require continual maintenance, with tankless requiring 'yearly' maintenance while tank-type require 'periodic' maintenance.
2) Troubleshoot in manual says 'no gas supply' or 'blocked pilot' replace pilot injector

Upvote the help.
And 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.

May 21, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

I have a Bosch Water Wizard 10P - have no hot water, no water comes out the hot water tap, can't light Pilot Light, not sure where to start would love a step by step diagram how to start pilot light -...


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

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.
http://waterheatertimer.org/pdf/Bosch_water-wizard.pdf
http://waterheatertimer.org/pdf/Bosch_13P_16P_In.pdf

Following links talk about keeping pilot lit, and describe location somewhat. Bosch water wizard has standing pilot light.
http://www.fixya.com/support/t2961646-water_wizard_10p_pilot_light_keeps_going
http://www.fixya.com/support/t2960079-bosh_water_wizard_10p_pilot_light_keeps
http://www.fixya.com/support/t6182021-bosch_10p_tankless_hot_water

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
http://www.boschhotwater.com/HelpfulResources/PurchaseParts/tabid/837/Default.aspx
http://www.houseneeds.com/shop/heatingproducts/waterheating/parts/bosch2400espartsbuy.asp#

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.
http://www.fixya.com/support/r6568559-post_photograph_fixya_questions_answers

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.

Apr 03, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

When the wind blows the pilot light out, I have great difficulty in pressing the buttons in to relight it.


You are getting negative pressure in the burner ... this can be caused by the access panel not being reinstalled properly after you relight the pilot. Vents can cause a "venturi effect" and if the access door is not on tight it will indeed become a real pain

Feb 18, 2011 | Bosch & Tankless LP Hot Water Heater

1 Answer

The off button on my bosch hot water service want pop back out So nothing is happening and I can't relight the pilot light??


Turn the Gas off at the main supply to the unit and contact Bosch ASAP. Do not try and refire the unit.

Sep 08, 2010 | Bosch & Tankless LP Hot Water Heater

1 Answer

Pilot light will not stay on Bosch natural gas tankless water hea


Check to make sure the flame of the pilot is hitting the thermocoupling. If not then you can use compressed air to clean the pilot port and relight and check again. If the flame is hitting the thermocouple, then it may need to be replaced.

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

1 Answer

Pilot light went out but will can,t get it relit it only stays on as long as I hold the button down


Is the thermocouple in the pilot flame? & does it get hot [glow red] If not adjust position until it does & make sure it's clean
If thermocouple gets hot but no relight, replace couple

Oct 26, 2009 | Bosch AquaStar 125FXKIT-NG 125FX Natural...

1 Answer

Pilot light gone out. How do I relight? Which


In general, large button from gas valve push in & hold 20-30 secs at same time push electronic lighter/ignition button to light pilot. Remember to hold in only gas button. the pilot light heats up a thermo couple [u can see this in the flame] and when hot enough allows the main gas through and the pilot to remain on.
If not then either thermo couple not heated for long enough or
it may need replacing

Oct 22, 2009 | Bosch Water Heaters

1 Answer

Bosch Water Wizard 600 pilot light keeps going out


You need a new thermocouple. Its the little stick like thing that the flame heats up to tell gas valve to open.

Jun 15, 2009 | Bosch Water Heaters

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