4 Yr Old - AO Smith 50 Gallon Won't Relight? - Plumbing - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing


Thread Tools Display Modes
Old 05-07-2011, 05:06 PM   #1
Join Date: May 2011
Posts: 5
Rewards Points: 10

4 Yr Old - AO Smith 50 Gallon Won't Relight?

i have a 5 yr old 50 galllon ao smith gas water heater, no hot water starting yesterday night....... tried to light pilor a dozen times, but no luck. cannot seem to get it lit again... i have followed book & instruction on water heater to relight, but no luck... this is how i tried to relight.....IN THE OFF POSITION, I TURNED KNOB TO PILOT, PUSHED DOWN, PRESS THE IGNITOR BUTTON NUMEROUS TIMES, BUT NO LUCK.... on a couple of OCCASION, did seen to see a small spark inside the small glass window,,, .... i googled this model, appears this tank may have problems? anyone have an opinion.


sfagtjt is offline   Reply With Quote
Old 05-07-2011, 07:38 PM   #2
Join Date: Apr 2011
Posts: 17
Rewards Points: 10

Thermocouple? That is usually the culprit. My understanding, correct me if I'm wrong, is that you won't be able to relight if you need a new thermocouple.


schraggyj is offline   Reply With Quote
Old 05-07-2011, 08:19 PM   #3
DIY staff

Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 25,728
Rewards Points: 7,174

When a thermo coupling fails you can relight the pilot--but it will go out as soon as you let go of the button.

OP can't get the pilot to light at all---Often simply turning the valve to 'OFF'--then 'PILOT' and hold the button down for one minute--then hit the clicker ---will work---it's worth a try.

New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
A.O. Smith Vertex vs Vertex 100 vs 75 gallon tank. TopRowSeat Plumbing 7 01-11-2012 03:15 PM
Bayer liquid weed killer & 2 Gallon flomaster pressure sprayer combo pack @ HD $10 whataboutj Landscaping & Lawn Care 25 05-13-2010 10:01 PM
What are you paying for a gallon of paint? Git Painting 8 09-23-2008 10:59 PM
Is a 40 Gallon water heater electric enough for a 1 bath house (2 people). twilightcall Plumbing 6 08-06-2008 09:11 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1