Question about Rheem Water Heaters

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Need to purge air from gas line for water heater

Pilot light would not stay lit yesterday after going out spontaneously. Rheem sent a new thermocouple, igniter, pilot gas line assembly. Installed today, adjusted the pilot spacing just so...but I can't get it to light at all now. I followed manual's instructions by turn dial to pilot turned the knob from pilot to off, waited 5, 15, 30 minutes. Then tried lighting each time. No joy. The owner's manual says to contact a service tech but how hard can it be.

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  • Rheem Master
  • 2,550 Answers

It could be that the gap for the igniter is too big Try lighting it manually There should not be that much air in the line .

Posted on Jun 14, 2017

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Posted on Jan 02, 2017

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co7196
  • 3433 Answers

SOURCE: 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.

Posted on Jun 15, 2009

  • 2 Answers

SOURCE: Rheem 40 gallon gas hot water heater, pilot light

To make a short story long (I need to include all details, sry)…

I got up one morning and realized that we did not have hot water. I re-lit the pilot light and as soon as the burner went out from heating the water up, the pilot light would go out. After reading several posts regarding this issue, it seemed apparent that the thermo-coupler was the problem. Since I am a little bit handy around the house and very tight when it comes to opening my wallet, I bought the device from Lowe’s ($8.98) that was recommended by my online advisors and after a few googles, figured out how to change it. No help. The pilot light still goes out.

I gave up and went to Home Depot to purchase and schedule the installation of a new hot water heater.

STICKER SHOCK

A new Direct Vent type water heater costs around $800 with an additional $450 for “special” installation. Add a few fees to that and the grand total came to about $1450.

I felt like I had no choice since my wife and 2 daughters refused to live their life without hot water and I had no clue about how to fix the dam thing.

The plumber assigned to the installation stopped by to evaluate the site conditions and quickly noted to me that the 8 year old water heater tank was in good condition and that the gas controller was probably faulty, which could be purchased online from the manufacturer. I quickly cancelled the Home Depot order and purchased the controller for about $120 after shipping and tax. Immediately after the installation it seemed that the problem had been solved. A few days later the pilot light went out.

I called the plumber and explained the situation and he recommended that I purchase another controller because the one that was shipped to me was probably bad. I searched around town and found a plumbing supply company that had the correct model in stock. Two days later the pilot light was out. I cleaned up the controller and returned it to the store and asked the plumber to please schedule a visit to repair this dam thing.

When the plumber arrived, he hooked up a gauge in several locations and confirmed that the correct amount of gas (cfm) was being delivered to the controller, pilot light and burner. He then proceeded to remove the fire box to make sure that the igniter, thermo-coupler and pilot tip were set properly. He inspected the pilot light tip and said that he found the problem. Using about a 1/64” tip drill (can be purchased at a welding supply store), he cleaned the tiny hole that releases gas to the pilot light. I felt a sigh of relief because I was certain that the problem had been solved. $65 dollars (plumber’s fee for an hour of work) and 4 days later the pilot light went out.

I called the plumber and he said that the controller that I purchased online must be bad. Too embarrassed to return to the first plumbing supply store, I found another one in a different town that had the correct model in stock. Three days after changing the controller the pilot light went out. I returned the controller and a six pack later I decided to do some extensive googling.

The key term here is “DIRECT VENT”. This seems to be a very common problem with direct vent water heaters and I was about to find out the reason for this phenomenon. I read a post by an individual who wrote that if the vent becomes detached that the inflow of air can become contaminated and extinguish the pilot light. I decided that before I spent any more money on a plumber that I was going to take the vent apart and find out what makes it tick.

My direct vent system has 2 parts to the venting, an inner pipe (3” nominal diameter) that serves as the exhaust and the outer pipe (5” nominal diameter) that serves as the internal flow of air which supplies the pilot light and burner with oxygen. On the outside of the house a vent hood helps to segregate the two by extending the exhaust about 3” beyond the intake. I looked into the hood at the end of the pipes and discovered that the internal pipe which consisted of a 2 piece slip joint had come loose from the elbow that sets on top of the water heater. This slip joint pipe was not attached at any point with screws or clamps and was loosely setting over the elbow on one end and into the hood on the other end, allowing it to detach. Apparently, when atmospheric conditions were right, the burner idled down from heating up the water and extinguished the pilot light because the intake was saturated with CO2 from the connection failure.

I purchased a section of 3” pipe that was long enough to be installed in one piece. I connected it to the elbow using a stainless steel hose clamp. I had to disassemble the pipe 3 times to make adjustments to the length and position before I got it right, but I should not have any more problems with the pilot light.

The problem here is time. It takes a lot of time to get this right. When the plumbing contractors installed this unit during the construction of the house, there was no one around to make sure that they got it right. It is probably common to use a 2 piece slip joint type connection, but I feel like it should be attached with screws or clamps. In my opinion it is not rigid enough and can detach easily, especially if it is not installed properly. A one piece connection that is attached at one end with a hose clamp and then held in place at the other end by the hood is fool proof.

Posted on Sep 27, 2009

john224
  • 1378 Answers

SOURCE: Natural gas hot water heater not stying lit

Probably a bad solenoid in the gas valve. Higher voltage of a new thermocouple keeps it open longer but it still fails over a period of time. Look into a new gas valve for the water heater.

Posted on Dec 17, 2009

  • 2550 Answers

SOURCE: We have an older Rheem Fury (gas) water heater and

Hi I would try changing the thermocouple

Posted on Jan 24, 2010

  • 454 Answers

SOURCE: I have a Rheem 50 gal. natural gas water heater

The most common reason a pilot light will not stay lit is a bad thermocouple. How old is the water heater? If the pilot light will light, but then go out when you release the safety button, that is a sure sign the thermocouple is bad. You can buy a replacement thermocouple at your local home improvement store. There is a small chance that the control valve has gone bad, but that is highly unlikely.

Posted on Feb 23, 2010

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1 Answer

Rheem water heater pilot lite stays lit, burner goes out


Tripped FV or TRD, or bad gas control valve, low gas pressure, air in gas line.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
Unfortunately, Rheem does not post service manuals. Other companies post service manual, but only Rheem uses TRD FV system, while other companies use arrestor screen.
http://waterheatertimer.org/How-to-repair-Rheem-TRD.html
Add a comment and say what you discover.

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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

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1 Answer

Cannot get the pilot light to stay lit. Replaced the thermocouple and the problem still exists


Burner parts need yearly cleaning, air intake needs periodic cleaning, burner parts cannot be exposed to trace amounts of chemical without damaging parts, no water should be dripping down from vent, vent should be checked for updraft, ample combustion air is required especially in closed basements, tight houses, and hot attic, bleed gas line to remove air, check that gas control thermostat is functioning.
Open following links for pilot light help:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

Aug 07, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Rheem #22DV50-38,pilot light keeps going out.Thermal coupler has been changed.


Most gas water heater problems can be solved by cleaning burner parts and combustion chamber, and bleeding air out of gas line, checking gas pressure, and making sure gas shut-off handle is turned-on and parallel with gas line:
Many things cause pilot light to go out including dirty parts, air in gas line, and hot-unventilated atmosphere.
Open following links for troubleshoot resources and cleaning illustrations.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/pdf/Attic-Ventilation-and-Pilot-Outage-in-Gas%20Water-Heaters.pdf

Jul 08, 2011 | Rheem Water Heaters

2 Answers

Cover not sealed would that make polot keep going out


General causes for pilot going out: downward draft of air from outdoors, back-venting of furnace into water heater vent, bad thermocouple, or burner parts need cleaning, or bad gas control valve, or air in gas line.
Water heater in attic: hot attic conditions stop natural flow of vent gas upward.
Open following link for troubleshoot resources and cleaning illustrations and instructions:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
Check venting by lighting a match under the vent hood and see if smoke drafts immediately upward.

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1 Answer

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Open following link for gas water heater troubleshooting resources and illustrations for cleaning:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/How-to-clean-combustion-chamber.pdf
Generic pilot light information:
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

Open following link for Rheem gas water heaters to identify product and download manual:
Click on link next to image, next page opens, click on Spec/Docs to find typical use and care manuals and then read troubleshooting tips for your specific unit where it suggests calling service technician.
http://www.rheem.com/Products/tank_water_heaters/gas_water_heaters

Jun 24, 2011 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

Pilot wouldnt stay lit. replaced the thermocouple and now pilot wont light at all.


Hello Make sure the gas is on and be paitent you have to purge the air out of the pipes/tube to light pilot.

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1 Answer

Pilot light won't stay lit in gas water heater


If this heater was manufactured after 2003 it has a FVIR filter. It is usually located on the bottom of the heater and this is where it draws air into the combustion chamber. Check to see if it is clogged with dust or lint.
because the heater probably has a sensor, it is not getting enough air and shutting off. hope this helped.

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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...

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