Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

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Model 22V40F1 40-gals unit. Pilot lights up OK but won't stay lit

Model 22V40F1 40-gals unit. Pilot lights up OK but then when Gas **** knob is turned to ON and the temperature dial is moved clockwise to the 60 deg F mark, the pilot flame dies.

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Change the thermcouple

Posted on Feb 17, 2010

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U can light the pilot lite,turn 2 ON it will stay lit 4 a couple of minutes then go out? If u turn the knob 2 low,med. It goes out pretty much immediately?I changed the thermocouple,blew the lines ou


Is the thermocouple secure, routed properly, no kinks, no sharp bends? Is the end of the unit properly aligned so the hottest part of the pilot flame is hitting the unit. Did you hold pilot switch in the light position for at least 30 seconds, before you set the gas valve to on? If all above OK, try this. Light the pilot using barbeque lighter once it lights keep the lighter on the t-couple for 30 seconds, then set the valve to ON and keep the lighter where it is. Once the main burner lights, remove the lighter. If the burner and pilot go off, your gas valve is bad.

Feb 17, 2015 | Rheem Richmond 75 Gal Natural Gas 6 Year...

1 Answer

Reliant 501 Natural Gas won't stay lit


Reliance water heater?
Thermocouple is good if the pilot stays lit continuously.

501 is older model. Unknown if this unit has FVIR protection and sealed combustion chamber or open air intake on front of unit.
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

With FVIR protection:
Get more fresh air to the unit.
Clean the flame arrestor screen.
Test and replace the thermocouple:
http://waterheatertimer.org/How-to-test-water-heater-thermocouple.html
Inspect and clean burner and combustion parts
Test gas pressure, bleed air out of gas line.
Replace gas control valve.
Test draft air by lighting match and see if smoke is pulled into the vent pipe at draft hood on top of tank.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Aug 20, 2012 | Water Heaters

1 Answer

Rheem 22V50F1 pilot won't stay lit. Changed thermo couple & it lit, ran then went out. Let it sit overnight & it lit, ran then went out. What next? p.s. The unit is 5 years old. Thanks


If pilot lights and flame is robust and clear blue, and pilot goes out later, then some suspects can be excluded: air in gas line, low gas pressure, thermocouple is overtightened (finger-tight + 1/4 turn), thermocouple not positioned correctly in the flame, dirty pilot tube.
If flame is yellowish and small: then clean pilot tube and combustion parts.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean
Remaining suspects can include: air in gas line, low gas pressure, bad gas control valve, tight house so household vent fans pull air down water heater vent that blows out pilot, hot attic with inadequate ventilation, water dripping down vent.

Open following links to read troubleshoot resources.
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

Aug 16, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Burner lites but goes out after 2 or 3 min.


the white rodgers gas control needs to be replaced;
the way it works is: the thermocouple opens the pilot gas circuit and, holds it open
when it heats up by creating a magnetic field in the gas control then: when you turn
the knob on the gas control to "on" a valve inside the gas valve opens the main gas circuit and, electricity supplied by your RV keeps it open.
the main gas coil inside the gas valve is defective and, can not hold the main gas circuit to the burner open anymore.

Jul 24, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

The pilot light & will stay lit. untill the burner cycles on/off


MAKE SURE THE BURNER TUBE AND ORIFICES ARE CLEAN. MAKE SURE YOU HAVE THE PROPER LP PRESSURE.

Oct 05, 2009 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

10 gal. atwood water heater in 1994 Prowler-Park model.After the water is heated, the pilot light goes out and has to be re-lit. this happens every time. Lately, put on pilot, re-light, turn to on and will...


the gas valve is what you need to replace, the thermocoupling only tells the gas valve that it is ready for a flame and lets a little gas out, but the gas valve is not letting the gas out,, there is a screen in the gas valve it may be clogged not letting the gas thru, but at the age of your unit I would even consider changing the unit insted of investinf more money into this one

Jun 14, 2009 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

No Hot Water in morning


Remove the cover then the access cover, then you can see inside,
the pilot light is probably out.

If out turn the gas off, then get a long match, grill lighter,or piece of paper ready to light, you should be able to see the little thin
gas line that runs inside the tank and see where it connects to,that is where you need to light, now that you see where to light, turn gas knob to pilot, and press down and at the same time light the pilot.
( blow into the pilot area before putting match inside to make sure no gas has built up inside) Hold down the knob for a minute then release, if pilot goes out try again and hold down longer, if you hold it for 3mins and it does not stay lite, the thermocouple is bad and you will have to replace it.

Apr 14, 2009 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Lighting the pilot light


The steps involved can vary slightly depending on your furnace model and pilot valve type, so if possible try and find the instructions inside the furnace door cover or in the instruction manual. This is for a gas fired furnace, but applies to any gas-fueled appliance including water heater. Two of the most common types of pilot valve body assemblies either have a red reset button and a gas valve or no reset button and a valve knob that can be depressed. But whichever type you've got, if you have an older model furnace with a standing pilot (flame is lit all the time) then this is the basic procedure.
  • Turn you thermostat to 80 degrees or to a setting that will demand heat. Make sure the thermostat is in "Heat" mode.
  • Go to the furnace and find the pilot valve. The pilot valve body is a box shaped device into which the main gas line will run and is located near the gas burners. It will usually have a gas **** or valve knob that reads "On, "Pilot" and "Off." Locate this gas **** or knob.
  • Turn the knob or gas **** to the "Off" position and wait about 3 minutes for any residual gas to clear away.
  • Find the pilot. It's located near the gas burner tube assembly in the furnace.
  • Get your match or lighter ready. Sometimes the pilot is hard to reach. If possible, try and use a long fireplace match when you light it. If you don't have a fireplace match then a butane BBQ grill lighter works well too. If you don't have that, then you can fasten a match to the end of a stick when you light the pilot
  • If you have a pilot with a red Reset button, turn the gas valve from "Off," to "Pilot."
  • If you have a pilot with no red button, turn the knob from "Off" to "Pilot."
  • Place the lit match or ignited lighter tip at the pilot and depress and hold the button or depress the knob as appropriate. Depress the button or knob for about 30 seconds. This maintains gas flow to the pilot until the thermocouple gets hot enough to open the main gas valve.
  • Once the pilot stays lit, slowly release the button or knob and turn the gas **** or knob from the "Pilot" position to the "On" position. This will ignite the burners and keep the flow of gas supplied as required for the burners as called for by the thermostat.
  • If the burners fail to ignite then it may be because the thermocouple did not get hot enough to open the gas valve. Wait a few minutes and then repeat the above procedure. This time hold the red reset button or depress the knob for about 45-60 seconds.
  • Once the main furnace burners ignite, adjust the thermostat to the desired setting.
  • If you've followed the previous steps on lighting the pilot and it still does not light after, or will not stay lit, then you probably have a problem with the thermocouple or an adjustment needs to be made to the pilot. You'll need a furnace service technician to replace or repair these parts. You may find that the pilot lights, but it is an anemic looking flame. That's a different problem we'll look at in the next section.
  • If the pilot lights but the flame is a weak yellow flame, it will not get hot enough to heat the thermocouple to its set point allowing the gas valve to open.
    A natural gas flame should be a bright blue with the tip of the flame having just a tinge of yellow. A propane flame should have a bluish green flame with a tinge of yellow at the tip. The flame should be strong enough to hit the thermocouple tip about 1/2 inch from the tip end. If the flame is weak or shaky looking, check to see that a breeze or draft is not blowing on it. Adjusting the Flame
    There is usually a small screw on the pilot valve body that will adjust the flame. You may have to refer to the manufacturer's instructions to find the screw. Turn the screw as needed to adjust the flame throw. Yellow Flame
    A yellow flame is caused by lack of air and incomplete combustion. It can be caused by a dirty pilot tube tip. Split Flame
    This is caused by dirt in the pilot tube. Take a needle or small nail and gently clean the tube. Flickering or Wavering Flame
    A flame that flickers is usually caused by a draft.
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Feb 18, 2009 | Water Heaters

1 Answer

Burner on new Whirlpool gass water heater will not stay lit


One of the proper ways to light a gas water heater, is to turn the black knob to Pilot, put a match to the end of the pilot light, while holding the match there, push the red reset button down and hold the match & the reset button down for one full minute. Then, release the reset button and turn the black knob to On. This should keep the pilot light on.

Jan 21, 2009 | Water Heaters

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