AO Smith GPSH Water Heater In System Lockout Mode - Plumbing - DIY Home Improvement | DIYChatroom


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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 06-16-2012, 09:07 AM   #16
Newbie
 
Join Date: Jun 2012
Posts: 1
Rewards Points: 10
Default

AO Smith GPSH water heater in System Lockout mode


Thanks so much for the info. This worked perfectly. My wife is very happy that we had to spare a Saturday service call to tech. Saved $$$!!!

Advertisement

boshjales is offline   Reply With Quote
Old 06-26-2012, 09:25 PM   #17
Newbie
 
Join Date: Jun 2012
Posts: 1
Rewards Points: 10
Default

AO Smith GPSH water heater in System Lockout mode


I will try you fix tomorrow my water heater did the same 4 years ago but fix it by him self. so this time I will try your fix thanks for posting this.
Quote:
Originally Posted by Abs777 View Post
I found out what it was. It was a dirty Flame sensor. I guess it was thinking that there wasn't a flame \wasn't getting gas and kicking itself off. I unplugged the water heater, pulled the bottom plate off (1 screw, undid the gas line (turn off the gas first), and pulled out the burner assembly. I then took sand paper and cleaned the flame sensor, put everything back together and boom HOT WATER. It was less than 20 minutes and saved me at least $100. The flame sensor looks like this (on the right) if anyone finds this thread in the future.



Thanks for the help.
Maxun is offline   Reply With Quote
Old 08-23-2012, 11:18 PM   #18
Newbie
 
Join Date: Aug 2012
Posts: 1
Rewards Points: 10
Default

AO Smith GPSH water heater in System Lockout mode


Water heater had the same problem. System lockout.

cleaned the sensor and vaccummed the unit for the dust.

Worked like a charm. Big Thanks Again

balsuu is offline   Reply With Quote
Old 12-21-2012, 01:43 PM   #19
Member
 
Join Date: Jan 2008
Posts: 130
Rewards Points: 93
Default

AO Smith GPSH water heater in System Lockout mode


Just in time for Christmas...My A.O. Smith Pro Max High Recovery 50 gallon tank, built in March 2008, is not heating water. The pilot is not out. It seems to kick on and off. Water is a balmy (ha) 80 degrees at faucets. My heating contractor has been here and is ordering a gas limiter valve. It won't arrive until the 26th; five days. Would the above instructions work? The plastic dust covers at the bottom of the heater were not very dirty. I haven't pulled any other covers off. My three teenagers are getting ripe. Anyone?
Arlo is offline   Reply With Quote
Old 01-24-2014, 09:16 PM   #20
Newbie
 
Join Date: Jan 2014
Posts: 1
Rewards Points: 10
Default

AO Smith GPSH water heater in System Lockout mode


Hope you're still active on this site and just wanted to say thanks. Just finished completing your cleaning steps and "Bam!" Hot water with no successive start-ups and shut-downs. If you were in WI I'd so buy you a drink. Thanks again.
topspin64 is offline   Reply With Quote
Old 01-29-2014, 11:41 AM   #21
Member
 
Join Date: Feb 2010
Location: Kentucky
Posts: 167
Rewards Points: 150
Default

AO Smith GPSH water heater in System Lockout mode


Glad it was of help...and Thank you!
Abs777 is offline   Reply With Quote
Old 05-04-2014, 10:04 PM   #22
Newbie
 
Join Date: May 2014
Posts: 1
Rewards Points: 10
Talking

AO Smith GPSH water heater in System Lockout mode


This worked like a charm! We've been fighting with having to reset the water heater for a week until today when it just wouldn't reset. Husband was online looking up new hot water heaters when I found your thread. I had him try it....it's working great. Except now he's mad he can't buy a tankless Thanks for saving us some $$$
dhamann48623 is offline   Reply With Quote
Old 09-01-2014, 02:02 PM   #23
Newbie
 
Join Date: Sep 2014
Location: Ohio
Posts: 1
Rewards Points: 10
Default

AO Smith GPSH water heater in System Lockout mode


@abs777 - Had same problem. In the years since the original post my ignitor (now ceramic) / sensor looked like this (attached). I removed (two screws total one for access plate one for ignitor/sensor assembly --- did NOT have to disconnect gas lines), cleaned both (maybe a mistake with the ignitor) with 00 steel wool, reinserted and fired up. Hot water now.
Attached Thumbnails
AO Smith GPSH water heater in System Lockout mode-20140901_114638.jpg  
willing to try is offline   Reply With Quote
The Following User Says Thank You to willing to try For This Useful Post:
cobra617 (10-02-2014)
Old 09-01-2014, 02:42 PM   #24
Member
 
Join Date: Jan 2013
Posts: 621
Rewards Points: 562
Default

AO Smith GPSH water heater in System Lockout mode


I came here for this exact problem! Wouldn't turn on and showed a lockout code. I turned it off and back on and it seems to be fine now.

We had a one minute power outage just before it happened, but that might have been a coincidence.

Should I clean it or leave it alone? (Assuming it stays better...)
If I clean it, with steel wool, sandpaper, vacuum?
Toller is online now   Reply With Quote
Old 09-01-2014, 03:31 PM   #25
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,471
Rewards Points: 4,588
Default

AO Smith GPSH water heater in System Lockout mode


Steel wool for flame sensor. Don't touch the HSI.
__________________
When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions.
beenthere is offline   Reply With Quote
Old 10-02-2014, 08:29 PM   #26
Newbie
 
Join Date: Oct 2014
Posts: 1
Rewards Points: 2
Default

AO Smith GPSH water heater in System Lockout mode


Quote:
Originally Posted by willing to try View Post
@abs777 - Had same problem. In the years since the original post my ignitor (now ceramic) / sensor looked like this (attached). I removed (two screws total one for access plate one for ignitor/sensor assembly --- did NOT have to disconnect gas lines), cleaned both (maybe a mistake with the ignitor) with 00 steel wool, reinserted and fired up. Hot water now.
I have the same ignitor/sensor as this one. I was in a foul mood because this hot water heater has been a pain for a few years.
I didn't remove the ignitor/sensor. I reached in with a small piece of 2000 grit sandpaper (what I had handy in my toolbox, I was too lazy to go looking for lower grit) and VERY lightly hit the top and bottom of that sensor. (I wasn't sure what I was supposed to sand so I very lightly did both). I only went 2-3 passes as I get nervous working with gas. (Electrical/Plumbing/Carpentry I can handle, but gas makes me nervous)
Put it back together, the unit fired up, ignited and stayed lit.

My question. Is this good? Or should I replace that ignitor/sensor assembly?
Also, I might sand it a bit more later on as I wasn't sure what I was supposed to sand and I went so lightly over both the ignitor and sensor that I can't imagine I did much.

BTW....THANKS!!!!! I was so peeved, and with the issues I've had with this unit, I was just going to bag it and have it replaced.

Advertisement


Last edited by cobra617; 10-02-2014 at 08:47 PM.
cobra617 is offline   Reply With Quote
Reply


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
Desiging a manifold water system? BowDown Plumbing 1 07-20-2009 12:00 PM
Stumped. Water heater woes. bigcaddy Plumbing 35 06-14-2009 06:12 PM
Natural Gas Water Heater Leaking from Release Valve Pipe? psumike Plumbing 6 01-14-2009 08:18 PM
low hot water pressure angus242 Plumbing 10 01-08-2009 12:41 PM
Water level in boiler system Barefoot Brian HVAC 3 10-19-2006 02:11 PM




Top of Page | View New Posts