Jump to content



Learn appliance repair at the Samurai Tech Academy.  Learn more.  Earn more.


Parts Search
Site Search

FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource!

The world-famous Samurai Appliance Repair Forums


To get started, click here.


Already a member of Appliantology? Just sign in with your username and password in the upper right-hand corner of the screen.

 


Photo

A.O. SMITH PROMAX WATER HEATER MOD - FCV 40 100 nat . Gas


  • Please log in to reply
6 replies to this topic

#1 ARAGON77

ARAGON77

    Samanera

  • Grasshoppah
  • Pip
  • 9 posts
  • Location: USA
  • Flavorite Brew:Miller light

Posted 15 April 2013 - 08:39 PM

Hi there I got a A.O. SMITH WATER HEATER MOD - FCV 40 100 , that shuts off by it self after heating for about 20-25 min, I just replaced the thermocouple with the cut off , the igniter and pilot line .
I also tried cleaning the screen under the burner with my vacuum , but it didn't help at all ,

CAN ANY BODY PROVIDE ANY TIPS .... ...?.

Use the Appliantology Parts Search Box to Find What You Need!
Enter your model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

#2 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 15 April 2013 - 08:48 PM

what shuts OFF ? ...  the pilot ?

Does the incoming Gas Supply Line have a drip-leg at the Gas Valve ?


Need parts? Call our Parts Department now! 877-803-7957


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


#3 ARAGON77

ARAGON77

    Samanera

  • Grasshoppah
  • Pip
  • 9 posts
  • Location: USA
  • Flavorite Brew:Miller light

Posted 15 April 2013 - 08:57 PM

The pilot and the burner will shut off at the same time , pilot and burner only stay on for about 25 minutes .



And no there is no sediment. Trap at the gas valve inlet . I just put in a brand new thermocouple

#4 Budget Appliance Repair

Budget Appliance Repair

    Sensei

  • Senior Appliantology Fellow
  • PipPipPipPipPip
  • 5,152 posts
  • Location: USA

Posted 16 April 2013 - 07:00 AM

It's not the thermal couple pilot assembly most of the time on these units.

 

Mostly always a plugged flame bearer ceramic disk that is plugged from not being maintained.

 

If you just ran a vacuum, (how you got it thru the little 3/4" x 5" slots I don't know), around with a crevice tool maybe - that's not enough.

 

You really need one of these: http://www.tightspotvacuum.com/ to clean them properly and sometimes if it hasn't been maintained for many year and no one ever installed the LDO (lint-dust-oil) screen, even that won't be enough and you will have to remove the burner assembly and flush with water from the top side while vacuuming from the bottom side to remove all the lint and dust that is accumulated/packed in the hundreds of little holes.


William Burk (Willie)
Willie's Budget Appliance Repair
Eureka, CA 95501

#5 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 16 April 2013 - 07:16 AM

50032689-00001.png


Need parts? Call our Parts Department now! 877-803-7957


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


#6 ARAGON77

ARAGON77

    Samanera

  • Grasshoppah
  • Pip
  • 9 posts
  • Location: USA
  • Flavorite Brew:Miller light

Posted 16 April 2013 - 01:48 PM

A big thanks to all for these useful tips , I'm going to try cleaning this lint ,oil screen and hopefully this will solve this problem . Once again thank you all for your help

#7 Budget Appliance Repair

Budget Appliance Repair

    Sensei

  • Senior Appliantology Fellow
  • PipPipPipPipPip
  • 5,152 posts
  • Location: USA

Posted 17 April 2013 - 05:49 AM

Ref#11 is the LDO screen that needs to be used, (NOT LEFT OFF like you find so often with these units), you need to make sure the plastic LDO screen is clean but that isn't where the blockage usually occurs, (because it get left off most of the time).

 

Need need to get into and clean the ceramic disk under the burner, inside the air inlet openings that the LDO screen covers


William Burk (Willie)
Willie's Budget Appliance Repair
Eureka, CA 95501




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."


The Appliance Guru | Master Samurai Tech

Real Time Analytics