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I have a 650 delta thermostatic gas combination control on a Rheem hot water heater that won't turn to to the proper pilot or off position to relight it. We have looked everywhere for trouble shootin

The control knob to light the pilot light won't turn to the necessary off and pilot positions to light the pilot light.

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Jennifer, the instructions posted by Rheems on the heater are wrong. You must first rotate the dial clockwise, use force (in our our case) to get the pilot to its position. The folks at Rheems are nuts not to check their instructions before printing them and plastering them on their hot water tanks. Disgraceful, period.

Posted on Jan 03, 2015

  • torsoboy Nov 23, 2015

    I was having the same issue. This solved it for me. Thank you!

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  • Water Heaters Master
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The instructions for some valves specify pressing the knob down while rotating it to the desired position. This is a safety measure.

Posted on Mar 30, 2014

Testimonial: "This was exactly the problem...my husband said he tried that already after I had suggested he do that...but then I tried it...and that was exactly the issue. Guess it just takes a little finesse. Hah! Thank you for your assistance"

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Posted on Jan 02, 2017

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1 Answer

Why won't control knob on water heater turn to off or pilot position so that I can relight


It usually needs to be pushed straight down, or into the valve body, if it is on the side.

Mar 26, 2017 | Water Water Heaters

Tip

How to Change the Gas Valve and Thermostat on a Hot Water Heater


<p>If you are having<b> trouble with the temperatures</b> of your <b>gas hot water heater</b> fluctuating too much, or after <b>changing the thermocouple</b> of your gas <b>hot water heater</b> then you may need to change the complete <b>gas valve and thermostat assembly</b>. Also if you have changed the <b>thermocouple</b> and the pilot still will not stay lit, then the gas valve could be bad or the <b>ECO (Emergency Cutout)</b> may have activated and is open. This is a onetime device and cannot be replaced.<br /> <p><br /> <p>These instructions are for the older style <b>gas valve and thermostat combination</b>. These commonly have a large red knob that adjusts the temperature of the water. Also note that the burner tube nut for <b>natural gas</b> is right hand thread, but if you have <b>LP or propane gas</b> the burner tube nut is left hand thread.<br /> <p><br /> <p>The newer <b>gas valve thermostat combinations</b> that have come out recently are similar, but they have a well in the tank that the sensor slides into. The assembly is held fast with a set screw. With this type of <b>gas valve and thermostat unit </b>the tank does not need to be drained, but most of the rest of the change out is similar.<br /><br />To change a <b>gas hot water heater thermostat</b> you will need to first buy a new gas valve for your <b>hot water heater</b>. The <b>gas valve</b> and the <b>thermostat</b> are integrated into one unit.<br /><br />To <b>replace the thermostat on a gas hot water heater</b> you must follow these procedures....<br /><br />1. Turn off the incoming water and<b> drain the hot water heater</b>.<br /><br />2. Remove the <b>pilot tube</b>, the <b>burner gas tube</b> and the thermocouple from the gas valve. Turn off the <b>gas line</b> and remove from the gas valve.<br /><br />3. Get a <b>pump pliers</b> or a<b> wrench</b> in behind the gas valve and turn the whole assembly CCW to remove it from the tank.<br /><br />4. After applying pipe dope or tape to the new gas valve threads, turn the new gas valve into the tank by turning in a CW direction. Be careful not to damage the small wires to the <b>ECO</b>. They are the little red wires on the back. If you break them the assembly is irreparably damaged.<br /><br />5. Reinstall the gas line, thermocouple, burner tube, and the pilot tube to the gas valve.<br /><br />6. Fill tank with water. Make sure to open a <b>hot water faucet</b> and <b>purge all air from the tank.<br /><br /></b>7. <b>Check for leaks</b> where the gas line hooks up with soapy water.<br /><br />8. Relight pilot light and check operation.<br /><br />9. Set the new temperature setting to a medium setting and then adjust the temperature to your liking from there and adequate time for heating completely<br /> <p>

on Feb 25, 2011 | Water Heaters

1 Answer

I have a Rheemglas Fury model # 81VP207, no hot water it is in a trailer home. HELP


I don't recognize the models number, if your water heater is an electric, check the two-pole circuit breaker in the distribution panel to make certain it has not tripped. If it has, try resetting it. If it will not reset, the heater element is probably bad. If the breaker has not tripped, either the thermostat(s) or heating element(s) are bad.
If it's gas, there are several problems that can cause a heater to not start. First is the pilot lit? If not, try holding the gas control down in the pilot position and light it using a match. (The instructions are on a label on the side of the heater). After the pilot lights, turn to "on" position and it will start to reheat the tank. If the pilot will not relight, either the gas control is failed, or (more likely) the thermocouple has failed. (The thermocouple is a very small copper tube that screws into the gas control and the other end is positioned in the flame of the pilot (it monitors the pilot flame to make certain the pilot is burning and only if satisfied, will allow the gas control to turn on and heat the water in the tank).
Hope this helps.

Dec 14, 2014 | Water Water Heaters

1 Answer

Rheem rp4036m


Under the gas valve is a removable panel. On models of that era there should also be a second panel behind the first. remove both.

the pilot light should be clearly visible.

If no pilot, turn the gas valve to OFF. wait 60 seconds. locate the tubes from the gas valve to the pilot location. turn the valve to pilot, and with a long match or grill lighter lit, place flame at the pilot location and press down on the pilot button beside the main valve.

pilot should light. If not shut off the gas and call a technician. If yes, hold the pilot button for 60 seconds, then slowly release. Pilot should stay lit. If not, shut off gas and replace thermocouple, start relight sequence over. If pilot stays lit, replace inner cover and adjust temp to 120 deg. If heater fires up, replace outer cover. Done.

If heater does not light, replace gas valve or entire unit. Water heaters have a limited life expectancy, and if my recollection is correct your unit is 10yrs past warranty.

Dec 04, 2013 | Water 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

Rheem NatGas hot water heater model 41V50, basement flooded pilot went our how do I relight?


At the controls there should be a knob that says " Pilot"... "ON" Turn the knob to pilot and hold it down while lighting the pilot lite. Keep holding it down until it gets warm enough that when you leave it up the pilot stays on. Once the pilot lite stays on on it's own turn it to on.

Mar 14, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

How to change bad thermocouple on reliance gas hot waterheater reliance 606


it is important to turn off

the gas supply to the water heater at the manual gas shut-off

valve. This valve is typically located beside the water heater.

Note the position of the shut-off valve in the open/on position

then proceed to turn it off.

2. On the lower front of the water heater locate the combination

gas control valve/thermostat. Depress and hold

the lock tab located under the gas control knob on the right.

Rotate the gas control knob on the combination gas control

valve/thermostat clockwise until "OFF" aligns with the mark on

the front of the gas valve. Once the gas supply has been shutoff,

remove outer door. 3. Using a 1/4" nut driver or socket loosen the two screws securing

the manifold door assembly until they are free. Do not

totally remove the screws and plastic retainer washers from

the manifold door. The screws and retainer washers will be

needed to reattach the manifold door. 4. In this step, the thermocouple, manifold tube, pilot tube and

igniter wire will be disconnected from the combination gas

control valve/thermostat. Using a 7/16" wrench

disconnect the thermocouple (left-hand thread) and pilot tube

(right-hand thread). Using a 3/4" wrench disconnect the manifold

tube (right-hand thread). Carefully pull the igniter wire from

the igniter button.

5. Grasp the manifold tube and push down slightly to free the

manifold tube, pilot tube, and thermocouple from the combination

gas control valve/thermostat. when installation is complete and gas is back on, You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

Nov 27, 2010 | Reliance Natural Gas Water Heater Control

3 Answers

Pilot light on water heater wont stay lit


The thermocouple has failed. It is the temp probe that goes from the pilot lite burner area to the control valve. Go to your local plumbng repair shop and buy one. Most appliance parts stores have them also. Take the old one with you and they will hook you up with an exact replacement. They are not that hard to change. Usually a nut or 2 screws in the temp bulb area at the burner end and a nut that threads into the control valve.
Make sure before you install the new one that the area where it mates to the gas valve is clean. Should be about a 20 min job including clean up with replacement parts in hand.

Jan 23, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

40 gal lp locked out at gas control valve. what are steps to unlocking valve?


Try turning the off pilot on knob to off and then turnign the temperature dial to the coldest position. then turn to pilot, relight and see if that works.

Jul 12, 2009 | Rheem Water Heaters

1 Answer

Can no light up a new Rheem 22V40FN water heater


Air in system. Make sure there is no sources of ignition and loosen the supply line at the heater and purge all air. Mske sure your source valve is open. then turn off yje heater after tightening the line. Let sit in off position for 15 minutes. Then turn therm knob to on slowly and then over to pilot, depress pilot button and hold a ffew seconds. Pilot should light. If so, hold for a few and then release and turn ti on position. Good Luck.

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

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