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Rheem 21vp40e1 power vent water heater not staying lit

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 21 Answers

SOURCE: Rheem 50 Gal Hot Water Heater will not stay lit

On the back of the gas valve (where you turn the temp up) there is a stem that actually goes into the tank that senses the temprature of the water it could be dirty or buried in sediment depending on how old the tank is, or just bad. if the tank is over 10 years old i wouldn't bother replacing the gas valve, the tank is probably not far behind. A new valve will run around $100.00 maybe a little less. You wont find it at menards or home depot in stock but they may be able to order it for you. Menards sells rheem products or try you local plumbing supply house. REMEMBER TO RELIEVE THE PRESSURE ON THE TANK BEFORE YOU WORK ON IT. IF YOU CHANGE THE VALVE DRAIN IT FIRST!

Posted on Feb 10, 2009

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gary1121
  • 332 Answers

SOURCE: Rheem 40 gal power vent gas water heater shows code 42

you plugged it in and the fan started or you unplugged it and the fan started,,the fan will come on first before the unit will inginte to take out the excess gas, if it didn't lite then the ignitor might not be working there are 2 swithces on the unit one on the fan and one by the gas valve make sure they are both on and make sure the gas it also turned on.

Posted on May 30, 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

  • 48 Answers

SOURCE: Loud blower on my new Rheem Power Vent 2 water heater

find out if it does the same noise with the venting disconnected

Posted on Jan 16, 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 Power Vent 2 41vrp50n does not stay lit


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-troubleshoot-gas-water-heater.html
http://www.thetankatwaterheaterrescue.com/forums/forum3/

Rheem does not post service manuals ... wonder if that's why huge majority of water heater problem on fixya are about Rheem/Richmond tank and tankless water heaters

Gene
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Sep 26, 2013 | Water Heaters

1 Answer

GX90-715A wont stay fired


1) Product manual has burner info page 11, maintenance 12, and troubleshoot flow charts starting page 17
Otherwise, Rheem does not post service manuals.
http://bostonheatingsupply.com/Rheem/Rheem%20Commerical%20Gas/Rheem_CommGas_Extreme_Use%20and%20Care%20Manual.pdf

2) Post question on pro water heater forum.
http://www.thetankatwaterheaterrescue.com/forums/forum3/

3) Is air intake clear? Is the burner sooted? Is the flame large and clear blue? Is the vent obstructed? Does air draft when blower activates?

Feb 14, 2013 | Rheem RUUD GX90-715A Water Heater,gas,90...

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

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 power vent heater will lite one time and go out after 5 minimutes. It tries to restart three time and then shuts down


Problem can be bad gas control valve, bad wire connections, combustion chamber and burner parts need cleaning, bad venting, air in gas line. Rheem manual recommends calling service technician.
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

I have a rheem power vent 21vp75e-1 it ignites the burner for couple of seconds and shuts off and retry to ignite into a lock out I wire jump the vacuum switch and it works properly than i replace the...


Before calling service technician, read manual for troubleshooting and yearly maintenance requirements.
Open following links to identify same-similar product and download manual.
Once you have product showing on page, click 'specs-docs' tab to see use-and-care manual.
http://www.rheem.com/product.aspx?id=C24E3F52-A6A4-4BC7-AF5B-0DF23A7A0263
http://www.rheem.com/Products/tank_water_heaters/gas_water_heaters
http://globalimageserver.com/fetchDocument.aspx?id=c0471d58-5e59-4be6-96f7-68361b8fb515
Rheem site loads slow, and some manuals never load.
Typical power vent manual:
http://waterheatertimer.org/pdf/Rheem-power-vent-manual.pdf

I believe the 21VP is older and Rheem does not show older manuals, but manuals are generally generic enough to help greatly. Year of manufacture show as second and third digit of serial number.

Lockout condition requires service technician and part replacement, or call Rheem and have them send part.
I found one link that talks about FV lockout that may or may not pertain to your issue:
http://www.diychatroom.com/f7/rheem-hot-water-heater-pilot-burner-not-staying-lit-65755/

Apr 19, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Richmond power vent will not stay lit, the bunrer will lit than after about 5-10 min. it goes and tries to relite and than goes into lock down. after it about 5 min. you can reset it and it will do the...


Richmond-Ruud-Rheem
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf

It sounds like you've read the manual.
And cleaned the burner parts according to manual.
You replaced thermal reset, but system is still tripping, so either the gas valve and tubing are bad, the thermocouple is bad, or there is a problem with gas pressure, or gas line.

Post question on pro water heater forum:
http://www.thetankatwaterheaterrescue.com/forums/forum3/

Apr 08, 2011 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

1 Answer

I too have an issue where our Rheem power vent water heater will not stay lit. I cannot see that it has a thermocouple though. I can only see the "glowplug" with two wires. The glow plug is fine....


You do not have thermocouple on your unit, you have a sensor. Rheem power vent water heaters ir very sensitive to any pressure changes. There are several things you can do to trouble shoot your water heater. Make sure the flue vent is fully open all the way out of the house. Unplug the unit from its electrical power source for 3 minutes, and then rest the heater. Make sure you have an adequate fuel supply, you may need to contact your local utility for a free inspection.

Dec 06, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

Rheem water heater will not stay lit


can you lit the pilot and if so will it stay lit

Sep 23, 2009 | Vanguard International Vanguard BY Rheem...

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