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How do you reset combustion shutoff system on a water heater

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Posted on Jan 02, 2017

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SOURCE: 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

Posted on Sep 10, 2012

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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

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

How to replace combustion shutoff device


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

Dec 07, 2012 | Water Heaters

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

Water heat will not stay lite. will light but goes out when you turn the knob from pilot to on


Water heater brand, model number, type, location and approximate age are not known.
It is possible that water heater has tripped the FVIR system.
Water heaters manufactured last several years will shut down if exposed to flammable vapors, or high heat inside combustion chamber caused by inadequate air supply or clogged air intake, or bad venting.
Solutions range from replacing water heater, to cleaning air intake, to replacing-resetting TCO, replacing TRD glass vial, replacing gas control valve, installing louvers so more air gets to water heater, removing water heater from dusty environment, etc.
Other cause can be bad gas control valve, and possibly bad TCO, or tripped ECO requiring reset or replacement of gas control depending on specific brand and model number.
Review you product manual, look for identifying information on label on side of water heater.
Copy following links for basic troubleshooting:
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html

Jul 13, 2012 | Water Heaters

1 Answer

Having problems with models sutting down. Relates to combustion shut off system. Explain how system works, with corrective action, especially draft system. Pilot ignites, burner operates for second or two...


As a general rule with Rheem gas water heaters, the manufacturer suggests calling trained service technician and their products do not have specific service bulletins.
I cannot explain combustion shut-off adequately. Post question on water heater forum.
http://www.thetankatwaterheaterrescue.com/forums/

Most likely the combustion and combustion parts need cleaning and maintenance, as a start point.
Gas water heaters today require yearly cleaning and maintenance.
That work would cover possible causes and combination of causes: from air in gas line, faulty venting, inadequate air supply, dirty parts, overheating, leaks, exposure to chemicals, corrosion, faulty gas control valve thermostat, sediment build-up.
You have a standing pilot light that is working, so gas supply sounds correct, and ECO is not tripped, so cleaning is major suspect right off.

Light a match under the vent hood and check if smoke drafts immediately upward.
Your water heater vent has a natural upward draft that pulls combustion by-product upward so the poison gas is vented outdoors to kill the world slowly instead of remaining inside the house. If vent is clogged, the air flow might not support combustion. Likewise if water heater does not have adequate incoming air supply, for example a tightly sealed house, then combustion is not supported. Also if you store bleach and pool chemicals and other assorted chemicals in trace amounts in same room or nearby, the burning chemicals will corrode combustion parts so they no longer perform.
http://waterheatertimer.org/images/Test-water-heater-vent-400.jpg

See general illustrations for cleaning combustion parts, and read 2 pdf files about cleaning typical gas water heaters.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

Read Reliance gas water heater handbook. It may or may not apply to your circumstance and heater.
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

Jul 11, 2011 | Rheem 30 Gallon FVR NATGAS Water Heater...

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...

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