Question about Water Water Heaters

1 Answer

FV SENSE Keeps flashing water heater doesn't heat up anymore. I changed flammable sensor and nothing.

Posted by on

  • Sargon shamon Apr 16, 2017

    model 1240gpct 102

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Water Master
  • 7,919 Answers

Check ignitor and pressure switch

Posted on Feb 01, 2018

Ad

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad

SOURCE: I have a GPVH 40 100 AO smith hot water heater.The

AO smith manuals
http://www.hotwater.com/lit/im/r-gas.html

GPVH series manual
http://www.hotwater.com/lit/im/res_gas/315465-000.pdf
You can search the manual for FV

The FV sensor shorted because it detected flammable gas

Quote manual:
Flammable liquids (such as
gasoline, solvents, propane (LP or butane, etc.) and other substances
(such as adhesives, etc.) emit flammable vapors which can be ignited
by a gas water heater's hot surface igniter or main burner. The
resulting flashback and fire can cause death or serious burns to anyone
in the area. This water is equipped with a FV sensor for detecting the
presence of flammable vapors, see Figure 3. When the sensor detects
those vapors, the unit will shut down and not operate. Should this
happen, please refer to the troubleshooting guide on pages 28-30.

Troubleshoot step 14-15 says
replace the FV sensor
call tech assistance number that shows on water heater
AO Smith will refer you to a plumber
I don't believe homeowner can buy these parts due to Federal regulations
The shorted FV sensor probably saved you a flash-over
The cost of 2nd degree burns from a flash-over would be astronomical.
Fortunately you're ok, and the other folk in the room are ok.
In the old days.
Two guys I knew, winter 1978 Chicago, were laying VA tile using the black mastic.
They were killed and the house burned down because of the water heater.
Main office marked the event with a memo saying they still owed money on their account.

The only company with a re-settable FVIR that I'm aware right now is Bradford White
http://www.thetankatwaterheaterrescue.com/forums/forum3/2679.html
http://411plumb.com/bradford-white-defender-water-heater-review
Bradford White Defender FVIR is resettable without buying parts.
324e006.jpg

Posted on Oct 25, 2010

SOURCE: water hearer gas valve locked

If water heater has FV event, check your manual for re-setting procedure.
Look at label on side of tank for brand and model number of your water heater:
http://waterheatertimer.org/Water-heater-manufacturers.html
My understanding is that Bradford White has resettable FVIR but all other manufacturers require service technician for part replacement.

I have found one internet thread that covers do-it-yourself FV.
http://www.diychatroom.com/f7/rheem-hot-water-heater-pilot-burner-not-staying-lit-65755/

I also posted same question on water heater forums, and nobody will answer 'due to liability concerns.'
This leads me to believe there are serious safety issues that could lead to manufacturer and-or plumber liability since FV-lock-out mandates were written to reduce widespread insurance property and casualty losses.

Posted on Apr 19, 2011

  • 5245 Answers

SOURCE: hot water heater womt light, flammable vapor sensor code

Most likely: Combustion chamber got too hot because air intake is clogged with dust, causing less air to flow upward through vent pipe ... the slowed flow of air caused combustion chamber to overheat.

What brand and model water heater?
Look at label on side of unit and add comment.
Otherwise call service tech to repair/ replace water heater and clean arrestor screen (air intake) and replace or reset parts as needed, depending on model number and brand water heater.

AO Smith, Bradford white, and Rheem are main manufacturers.
Each has slightly different repair protocol, and each gas control valve can also be different. So more information is needed.

Identify gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
Rheem TRD/ FVIR glass vial
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html
How to remove combustion parts to inspect for Rheem glass vial and clean arrestor screen located under combustion chamber:
http://waterheatertimer.org/How-to-replace-thermocouple.html

Posted on Oct 01, 2012

  • 402 Answers

SOURCE: error codes

iIf main burner is comming on then going off you may have dirty flame sensing rod,if no main burner flame it may be bad gas valve.

Posted on Feb 25, 2013

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to test flammable vapor sensor lockout on whirlpool gas water heatermodel nd50t122-403


You could clog up the screen on bottom of water heater... and this would cause FV system to trip because of overheated combustion chamber... then clean arrestor screen and push reset button located on front of combustion chamber to get water heater working. Of course you might have to replace parts to restore functionality.
Or pour some gasoline nearby and see if the water heater explodes, or if the FV trips. I would think this to be unwise.
Contact Whirlpool
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html

Gene

Oct 19, 2014 | Water Heaters

1 Answer

How to reset FV sensor for water heater


Are you SURE there are no flammable vapors present now? Try removing it & taking it outdoors for half an hour - do this with the water heater POWERED OFF. Bring it back in & reconnect it, then try the water heater again. If it still won't light, replace the sensor.

Aug 10, 2014 | Water Heaters

1 Answer

My 50 gal lp water heater made a slight boom sound and now when i lite it and turn on the main bunner it snuffs its self out


1) Call manufacturer with model number and serial number appearing on label on side of water heater.
http://waterheatertimer.org/Water-heater-manufacturers.html

2) Copy following link to troubleshoot by type of gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-thermocouple.html

3) Product manuals today recommend yearly service, and yearly cleaning of combustion parts, and to keep air intake clean.
If air intake becomes clogged, or combustion parts get dirty, it can slow the exit of combustion gasses, and this will soot the burner, and clog burner ports, which means slow lazy yellow flame and incomplete burning of released gas. So unburned gas is present in combustion chamber and up the flueway. The ignition of unburned gas can cause explosion of various intensity ... and the 'boom' sound you heard.

The explosion certainly overheated combustion chamber and tripped FVIR system.

4) Since each manufacturer has different FV system (flammable vapor ignition retardation system), and each manufacturer has continued to make changes over time in FV systems, the solution for tripped FV will vary by brand and age and model of water heater.
For example the intellivent gas control can be reset in some models, while other models require replacement of parts ranging from gas control valve to FV sensor to glass vial, and include possibly full replacement of water heater.

Jan 20, 2013 | Water Heaters

1 Answer

Detecting gas and won't light


Open following link for troubleshoot error codes showing 7 flashes on Honeywell gas control valve is system lockout due to flammable vapor:
http://waterheatertimer.org/pdf/Honeywell-gas-control_error-Damper-series.pdf
The FV system in Rheem can be tripped by presence of flammable vapors such as gasoline or paint fumes etc, or it can be tripped if water heater was dropped, or mis-manufactured, or if gas control valve is defective, or if water heater is not getting adequate fresh air, or there is inadequate venting of combustion by-product.
When combustion chamber overheats, then glass vial breaks and damper shuts off air supply to water heater and it will not light.
Open following link for possible help fixing the problem:
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html

Jun 13, 2012 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Rheem water heater 42vp40sf and the fvd interface failure code is flashing. how do i fix this?


Call Rheem
1-800-432-8373

TRD is flammable vapor system. Typically there is a glass bulb or fuse located in the combustion chamber.
See example image:
http://waterheatertimer.org/images/FV-TRD-glass-fuse-300.jpg

Remove the burner and look for the evidence of broken glass bulb that holds the air intake open.
Air intake is located bottom of combustion chamber, and bulb breaks causing metal plate to snap upwards and close off air supply to combustion chamber.
Rheem will have exact part number and possible instructions. Other people have wedged the air intake open to get system working again, but I do not know if that will work with your model water heater with electronic control. Working around the FV system exposes home and people to flammable vapor ignition and explosion when water heater is exposed to flammable vapors.
Example manual with illustrations.
http://waterheatertimer.org/pdf/Test-if-thermal-release-device-needs-replacement.pdf

Clean burner and pilot orifice and combustion chamber while burner parts are removed. Also clean air intake.
When burner is removed for cleaning, the access door gasket might need to be replaced.
Your product manual and/or Rheem will have that part number.

Sep 23, 2011 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

Cant light pilot light


The problem can include bad thermocouple, combustion parts need cleaning, low gas pressure, air in gas line, bad gas control valve thermostat, lock-out from FV sensor flammable vapor event, ECO tripped from high heat event, hot attic air reducing available oxygen.

Before calling service technician, open following links for resources, illustrations and Reliance troubleshoot and service manual that might apply to your water heater:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

Aug 09, 2011 | Reliance Water Heater #6-50-GORT 50GAL...

1 Answer

Water hearer gas valve locked out. has code #15 fv sensor. has no flammable vapors around. how do i reset?


If water heater has FV event, check your manual for re-setting procedure.
Look at label on side of tank for brand and model number of your water heater:
http://waterheatertimer.org/Water-heater-manufacturers.html
My understanding is that Bradford White has resettable FVIR but all other manufacturers require service technician for part replacement.

I have found one internet thread that covers do-it-yourself FV.
http://www.diychatroom.com/f7/rheem-hot-water-heater-pilot-burner-not-staying-lit-65755/

I also posted same question on water heater forums, and nobody will answer 'due to liability concerns.'
This leads me to believe there are serious safety issues that could lead to manufacturer and-or plumber liability since FV-lock-out mandates were written to reduce widespread insurance property and casualty losses.

Apr 19, 2011 | Water Heaters

1 Answer

I have a GPVH 40 100 AO smith hot water heater.The FV (flammable vapor) sensor has been setoff from us painting the floor yesterday. How do I reset the unit?


AO smith manuals
http://www.hotwater.com/lit/im/r-gas.html

GPVH series manual
http://www.hotwater.com/lit/im/res_gas/315465-000.pdf
You can search the manual for FV

The FV sensor shorted because it detected flammable gas

Quote manual:
Flammable liquids (such as
gasoline, solvents, propane (LP or butane, etc.) and other substances
(such as adhesives, etc.) emit flammable vapors which can be ignited
by a gas water heater's hot surface igniter or main burner. The
resulting flashback and fire can cause death or serious burns to anyone
in the area. This water is equipped with a FV sensor for detecting the
presence of flammable vapors, see Figure 3. When the sensor detects
those vapors, the unit will shut down and not operate. Should this
happen, please refer to the troubleshooting guide on pages 28-30.

Troubleshoot step 14-15 says
replace the FV sensor
call tech assistance number that shows on water heater
AO Smith will refer you to a plumber
I don't believe homeowner can buy these parts due to Federal regulations
The shorted FV sensor probably saved you a flash-over
The cost of 2nd degree burns from a flash-over would be astronomical.
Fortunately you're ok, and the other folk in the room are ok.
In the old days.
Two guys I knew, winter 1978 Chicago, were laying VA tile using the black mastic.
They were killed and the house burned down because of the water heater.
Main office marked the event with a memo saying they still owed money on their account.

The only company with a re-settable FVIR that I'm aware right now is Bradford White
http://www.thetankatwaterheaterrescue.com/forums/forum3/2679.html
http://411plumb.com/bradford-white-defender-water-heater-review
Bradford White Defender FVIR is resettable without buying parts.
324e006.jpg

Oct 24, 2010 | Water Heaters

Not finding what you are looking for?
Water Heaters Logo

Related Topics:

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top Water Heaters Experts

vince

Level 3 Expert

1211 Answers

80stech

Level 2 Expert

102 Answers

D. E. Hev

Level 3 Expert

1181 Answers

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

Answer questions

Manuals & User Guides

Loading...