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How to replace combustion shutoff device - Water Heaters

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Copy following link for general steps for Rheem, Ruud, Richmond, GE tank-type gas water heaters:
http://waterheatertimer.org/How-to-repair-Rheem-TRD.html

Posted on Dec 07, 2012

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SOURCE: where is the combustion shutoff device

the combustion shut off device is usually the gas shut off valve.
follow the gas flex connected to the water heater gas controll, to the wall, you should find the valve located somewhere near the wall.

Posted on Aug 31, 2010

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How to take off the thermal couple off a ge sg40t12txk


1) Copy following links:
http://waterheatertimer.org/How-to-replace-thermocouple.html
http://waterheatertimer.org/How-to-repair-Rheem-TRD.html

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

Gas not getting to the combustion chamber of water heater


1) Gas control valve might be bad.
http://waterheatertimer.org/pdf/How-to-replace-water-heater-gas-valve.pdf

2) Copy following link to identify gas control valve:http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
3) Link above has general troubleshoot information concerning each gas control.
4) If FV system tripped due to clogged air intake, then can shut down gas control.
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html

Less air means slowed venting, but same amount of gas is still burning, which overheats combustion chamber tripping FV system.
Each brand is different: Some air intakes are located on bottom of heater, while other brands, the air intake is located under combustion chamber.


5) Gas control will also fail if thermostat fails and allows tank temperature to reach beyond ECO set point. The ECO is 1-time-use thermal fuse. Replace gas control.

Dec 06, 2012 | Water Heaters

1 Answer

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

Sep 30, 2012 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

Where is the combustion shutoff system on a Rheem 30 gal moble home hot water heater


Disproportionate number of water heater problems are Rheem-related, yet Rheem is just 1 of 3 major water heater manufacturers.

If you have Rheem tank-type gas water heater, and the combustion shut off has tripped the FV system, then there is a broken glass vial located under the burner.
Rheem does not post service manuals, and they may or may not send the glass vial for replacement. Depending on model which appears on label on side of tank. Year of manufacture are 3rd and 4th digits in serial number.
And they may want you to contact a qualified service technician (plumber)
You will have to replace glass vial, and clean the arrestor screen and clean the combustion parts, check gas pressure, and check venting.
Other companies post service manuals and do not rely on the glass vial.

Copy following links:
http://waterheatertimer.org/How-to-repair-Rheem-TRD.html
http://waterheatertimer.org/How-to-replace-thermocouple.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Sep 09, 2012 | Rheem 40 Gallon FVR NATGAS Low WATER...

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

Automatic restart is not working. Seems to keep saying eco problem...I thinl...the code is four flashes followed by two flashes.


Gas control valve is not identified, so error code is not known.
ECO means energy cut off.
Energy cut off happens when gas control valve thermostat has gone bad, or when gas control senses runaway heating inside combustion chamber.
Newer heaters have resettable ECO for combustion overheat. This reset is typically located on combustion chamber door and is round and has two wires that connect back to gas control. Generally you have to clean combustion chamber and tubes and catch up on maintenance, then reset ECO, then fire up heater again to see if problem is resolved.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/images/Typical-gas-valve-500.jpg

Newer heater does not have reset for bad thermostat, and in that case you replace gas control valve thermostat.
Older heater does not have reset, and combustion chamber and parts are cleaned, and gas control valve thermostat is replaced.
Your manual is best place to start troubleshoot.
Open following link to help identify gas control valve:
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html

Jul 10, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

3 Answers

How do you reset combustion shut-off device tripped


Call GE 1 800 431 1549 they will fedex you a new one free of charge

Jan 30, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Where is the combustion shutoff device


the combustion shut off device is usually the gas shut off valve.
follow the gas flex connected to the water heater gas controll, to the wall, you should find the valve located somewhere near the wall.

Aug 21, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Shutting off water valve problems


Some shutoff valves are pretty marginal to start with, then they corrode. They can easily break if you put too much force on the handle. You are wise to be cautious. You will have to turn of the main water supply and then replace the toilet shutoff valve. You might be able to replace the shutoff valve yourself, depending on your skills and depending on how the shutoff valve is connected to pipe coming out of the wall or floor. But keep in mind that if you get in over your head you will have no water in the house until you get that new shutoff valve in place.
If you can describe what kind of pipe that shutoff valve is connected to I can help you understand if you should tackle it yourself.

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New Noritz 751M-OD not getting up to temp.


check the thermostat this would be the only thing keeping it from getting to any temp,, other then the gas valve, is it constant or happens here and there;;;

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