Question about Audiovox Richmond 6G40-36F 6-Year Tall Gas Water Heater

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I have a new fv sensor put it in and i need to have a reset code to restart it

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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


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

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.

Feb 25, 2013 | Water Heaters

1 Answer

Richmond gas water heater need reset code

Intellivent gas control can be reset on some units.
Honeywell does not make Intellivent.

1) Copy following links:

2) For Rheem, there is a glass vial that is broken if FV system tripped.
This requires new glass vial, which Rheem may send depending on model.
It might also require new parts such as gas control valve, and/or replacement FV sensor depending on model.
Some models require full replacement of water heater.
Each model can be different.

3) Rheem does not post service manuals, and says customers should call service technician.
Combustion parts are held in place with tamper-proof screws and combustion door gasket might need to be replaced when removed from front of unit.

Jan 29, 2013 | 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.

2) Copy following link to troubleshoot by type of gas control valve:

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

How to take off the thermal couple off a ge sg40t12txk

1) Copy following links:

2) GE is made by Rheem, so air intake screen is located below the combustion burner, as is the TRD (thermal reset device).

3) Modern gas water heaters, the FVIR, or FV system will trip when air intake gets clogged with dust.
This will slow venting of hot combustion gasses, except burner is still burning same amount of fuel. Overheating occurs, and that trips FV system.
Other brands require cleaning air intake screen and possible replacement of gas control valve, or FV sensor, etc. Each model is different.
Rheem_GE overheating will trip TRD, and glass vial breaks, causing air intake to close. Glass vial must be replaced, and possibly the gas control valve replaced.

Dec 18, 2012 | Rheem 36" Water Heater Thermocouple Kit

1 Answer

Put in gas valve, a few days later sensor set lock out due to flamible sensor setting off. what are the codes to unlock system?

Air intake is probably clogged, so combustion air flow slowed and caused overheating inside combustion chamber.
This tripped FV system and broke TRD, which is a small glass vial located under burner. The spring-activated air baffle snapped closed and shut off air supply, and also tripped FV lockout of gas control.
Remove burner, replace glass vial ordered from Richmond, and clean air intake.
If you have Intellivent gas control, then it can be reset.
Copy following link to identify gas control valve, and download possible service manual:

Nov 11, 2012 | Rheem Richmond 40 Gal LP Gas 6 Year Tall...

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:
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.

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

GPVH series manual
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
Bradford White Defender FVIR is resettable without buying parts.

Oct 24, 2010 | Water Heaters

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