Tip & How-To about Plumbing

How To Light a Pilot Light on a Water Heater

If your water heater has a push button ignitor, watch this video:

If your water heater requires you to manually light your pilot using a match/lighter, watch this video:
If you are uncertain, watch both. Hope you find this helpful! :-)

Posted by on

Plumbing Logo

Related Topics:

Related Questions:

2 Answers

when you push in the gas the red button the flame will not stay on


CTRL Z TV ' Volume 1: Introduction to the problem and ...

? 4:49
https://www.youtube.com/watch?v=k1qM-ZbYdWo
Dec 16, 2013 - Uploaded by CTRL Z TV
Which will take you from troubleshooting the problem, getting familiar ... Ctrl z TV, Pilot light won't stay lit up, Gas water heaterproblems, Gas water ... If your water heater has a thermal resetbutton, press & hold it for up to 4 ...

Pilot Light Easiest Way to Light it When it Goes Out - YouTube

? 3:06
https://www.youtube.com/watch?v=9bdLuGKaCXI
Sep 24, 2011 - Uploaded by Mixed Martial Animations
Here's a simple solution to a common water heater problem. ... the instructions says turn off the gas valve when lighting the pilot... i... 4 Steps, Set too pilot, hold down red button, push ignitor till pilots lit, ... if the flame will not stay on no matter how long youhold the button down, your thermocouple is bad..

Nov 29, 2015 | Heating & Cooling

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

pilot light will not light push the ignitor button, but no spark, maybe one in 20-30 strikes do i get a spark.


the sparkers do go bad and usually can be replaced. you should be able to light the pilot by hand with a long lighter that is used to light a grill.

Jan 30, 2011 | Reliance Water Heater #9003531 NAT Gas...

1 Answer

can't get the pilot light to start


Is this the newer style with closed combustion chamber. If so I would check to make sure that spark ignitor is working. If not it will need replaced. If ignitor is workingthen loosen compression nut on line to pilot and temporarily depress button on gas valve to make sure you have gas at that point.If you have gas there and tighten compression nut to pilot back up and it still won't light then you will need to remove screws that hold cover on burner compartment.Shut off valve to gas supply and remove gas line from gas valve remove pilot and thermocouple lines. Slide burner out ofcompartment and clean it .Remove nut from bottom of pilot assembly and clean out pilot orifice. Blow through pilot line to make sure it's all clear
Reassemble everthing using teflon tape or pipe joint compound as needed.Turn gas supply valve on and check for leaks.Set gas valve control to pilot and depress pilot button and hold. While you are holding button done push spark ignitor every few seconds until it lights. thank you and good luck

Dec 22, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Trying to find out if my new hot water heater is shot


The red button you pushed on the hot water heater was probably what is called a "piezo-electric" ignitor. It's normal for it to make a snapping sound and then pop back out. It sounds like you just lost the pilot light.

That being the case, do this:

Turn the gas valve on the hot water tank to the "off" position - it should be silver in color and down low on the tank. You may have to push it down to do this
Leave it off for about two minutes or so
Rotate the valve back on to the "Pilot" position
Hold down the pilot gas valve - it should be red and immediately to the left of the main gas valve.

While holding the pilot gas valve down, push the other red button to the right of the main gas valve - this is the piezo ignitor - push it several times in a row quickly

The gas pilot light should light
You can stop pushing the ignitor now, but continue to hold down the gas pilot valve (the one just left of the main gas valve). Let this valve up after about another 20 seconds or so.

Now rotate the main gas valve to the "on" position

Listen carefully - you should hear the main gas light and feel heat at the water heater flue outlet on top - don't touch it with your hand - you could get burned

If no luck, repeat the process until the heater re-lights

TIP - the instructions for re-lighting the pilot should be written on the heater

Just a potential diagnosis - the thunder clap, if as close as you describe, may have been intense enough to create what is known as a "draft inversion" that may have snuffed out your pilot light. The air pulse came down the flue pipe.


Apr 08, 2009 | American Standard Water Heaters

Not finding what you are looking for?

577 people viewed this tip

Ask a Question

Usually answered in minutes!

Top Plumbing Experts

Donni Steen

Level 3 Expert

659 Answers

Brad Brown

Level 3 Expert

15451 Answers

Tom Chichester

Level 3 Expert

33294 Answers

Are you a Plumbing Expert? Answer questions, earn points and help others

Answer questions

Loading...