Question about Rheem Water Heaters

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Rheem water heater with White Rodgers controller FVS bad (open circuit)

I have ordered a new FVS but won't be in for several days due to current hurricane. Is there a (temporary) work around? Should ohm at between 9K and 45K could a simple resistor work for a couple of days? Thanks

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  • Rheem Master
  • 5,245 Answers

I don't know.
Copy following link for general service manuals by type of gas control valve:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

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

While tank water is cool, loosen and replace anode rod so tank is up-to-date on rust protection.
http://waterheatertimer.org/pdf/How-to-replace-water-heater-gas-valve.pdf

Posted on Oct 30, 2012

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Posted on Jan 02, 2017

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SOURCE: How to install a new temp sensor Whirlpool electric water heater

The instructions for installing the sensor will probably included with the new part. Also, when you receive the part and actually see it, you will probably know where it will go. Sometimes, things like this happen even with new units. I have had bad thermocouples on brand new units right from the factory. It happens and unfortunately it happens to us sometimes. Good luck and if you get the part and still have trouble, contact them again. If you would have bought a GE (Rheem) unit, they would have sent a tech out to your house at no cost. I'm not a fan of Whirlpool water heaters.

Posted on Apr 02, 2009

  • 74 Answers

SOURCE: AO Smith water heater won't fire.

I bet your thermo couple is bad or your ports are clogged? How old is the unit?

Posted on Apr 16, 2009

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

  • 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

SOURCE: Hello, I have a Rheem 81V52D 50 gal. residential

It's probably bad upper or lower thermostat.
BUT... new element could also be shorted.
OR ... original tank is rated 1500 watt elements look at label on side of tank.
I always replace both thermostats to save time.
Lower thermostat costs $10 at Lowes.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

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Fixya is always less expensive than a service call.

Posted on Jan 17, 2011

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1 Answer

Drain wont stop leaking


1) Copy following link for fixing drain valve on 38 gallon gas water heater with plastic drain valve.
http://waterheatertimer.org/How-to-replace-water-heater-drain-valve.html

2) According to serial number, your GE (Rheem) water heater was made in 3rd month of 2007. No service manuals are available from Rheem. Warranty period is probably 6 year. Unit appears to have reliable White Rodgers gas control valve.
http://waterheatertimer.org/How-to-maintain-water-heater.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

3) Add comment and say what you discover.

Feb 18, 2013 | Water Heaters

2 Answers

Rheem water heater rtg95dvn keeps blowing 3 amp fuses


Not for sure what your root cause was and I know it's a little late but I just suffered this same exact scenario on the same water heater. Storms came through, power went out, power came back on and the water heater keeps blowing the 3 amp fuses now. I removed all the cables and plugged them back in one at a time. When I plugged in the Fan Motor connector the fuses blew. Installed new fuses with the connector out, the Fan Motor was putting out 150 VDC through the connector port (on main control). I pulled the control from the unit and Q1 is visible blown and disintegrated on the control board. Obvious control design issue. I've ordered a new control and will put a surge protector on the heater now when the new control comes in. Very disappointed that this was not caught in controls testing within the manufacturers facility. New control is not very cheap. Half the cost of a new Heater. Hopefully the Fan Motor survived the high voltage with the fuses blowing. I'm putting this here for anyone else that suffers the same issue on this water heater or the Richmond equivalents as they use the same control.
rheem-water-heater-rtg95dvn-keeps-lig2cnfgd44b3pejpipwueov-2-0.jpg

Jul 31, 2012 | Rheem Tankless Hot Water Heater...

1 Answer

Detecting gas and won't light


Open following link for troubleshoot error codes showing 7 flashes on Honeywell gas control valve is system lockout due to flammable vapor:
http://waterheatertimer.org/pdf/Honeywell-gas-control_error-Damper-series.pdf
The FV system in Rheem can be tripped by presence of flammable vapors such as gasoline or paint fumes etc, or it can be tripped if water heater was dropped, or mis-manufactured, or if gas control valve is defective, or if water heater is not getting adequate fresh air, or there is inadequate venting of combustion by-product.
When combustion chamber overheats, then glass vial breaks and damper shuts off air supply to water heater and it will not light.
Open following link for possible help fixing the problem:
http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html

Jun 13, 2012 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

We have a Richmond 50 gal Rheem model 8MV50-2 that blew out the bottom element. We changed both elements and refilled the tank but the water heater won't heat. Do we need a new tank?


Electric water heater is fully repairable unless it is rusted out.
All 2-element tanks are 240Volts.

If you have NO hot water, then suspects are 240Volt circuit supplying only 120V, reset button is tripped out on upper thermostat, bad upper thermostat, bad upper element.
If elements were not completely covered with water when power was turned on, then elements will instantly burn out.
When filling water heater tanks, open bathtub spout. Wait for water to come out full stream. Then open TP valve on water heater for a moment to remove last of air. Then turn on electricity.

Open following link for complete troubleshoot walk-thru.
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Aug 20, 2011 | Water Heaters

1 Answer

I have an A. O. Smith Model FPSH 40-261 hot water heater. It won't heat water. there is a green light on the control flashing. What does it mean?


AO Smith uses the Honeywell ICON gas valve with green indicator light.
Some models use White Rodgers Intellivent with a row of indicator lights.

The gas control blinks the error code:
Open following links to identify gas control thermostat and read possible error codes:
http://waterheatertimer.org/pdf/Honeywell-Gas-Valve-LED-Codes-2000.pdf
http://waterheatertimer.org/BW.html#Temp
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#intelli

Jul 18, 2011 | Water Heaters

1 Answer

My white rodgers control panel is set on vacation (green light) is on. I have held down the arrow buttons to get it off of vacation mode but it is not working. Obviously i need to switch it off as we have...


Water heater and gas valve are not clear:
Add a comment with description of water heater and gas valve for possible help.

Open following link for White Rodgers intelli-vent gas valve thermostat:
http://waterheatertimer.org/pdf/Intelli-vent-gas-valve2.pdf
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#Intellivent

1) Typical instructions for Kenmore and AO Smith water heater with Intelli-vent say:
Set on-off switch to ON position.
Hold down both arrow buttons for 1 second.
Then press hotter button.

2) Also check that 120Volt electrical outlet has power, and check outlet with cheap circuit analyzer from home center.
3) If Intelli-vent gas valve thermostat is malfunctioning, and won't reset, then contact manufacturer of water heater for replacement gas valve.
Label on side of tank will have Model number, manufacturer, type of gas LP NG, serial number for part ordering.

Add a comment for more help.

Jun 10, 2011 | White Rodgers Water Heaters

2 Answers

I have a Rheem 41VRP50N water heater. The water I am getting is luke warm on a good day. The burner fires up when I turn the thermostat to the highest temperature only. I drained the unit and flushed...


This condition can be caused by 4 different problems, or combination of these problems.
Good indicator would be to check temperature of water inside tank.
Put bucket under TP overflow tube and release water into bucket, then use cooking thermometer to gauge temperature. Stand back from scalding water that can shoot out of overflow.

If tank temperature is 120-130:
1) Crossover is suspect:
http://waterheatertimer.org/Crossover.html

If tank temperature is low:
2) Bad gas control valve thermostat is suspect.
I believe Rheem 41VRP50N has Honeywell or White Rodgers electronic gas control valve.
Open following link to identify gas control thermostat and see typical error codes.
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html#Honeywell
Replacement gas valve can be purchased from Rheem.

3) Combustion parts and tubes need cleaning, and bleed gas line for air and water contaminants.

4) Water heater has sediment build-up coating burner transfer surface and covering thermostat.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html
Year of manufacture for Rheem water heater is 2nd two digits of serial number, so XX03.. would be 2003.

Add a comment and say what you did to solve problem.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Upvote the help.
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For a price, expert works with you while you work on water heater or any do-it-yourself project.
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Jun 03, 2011 | Rheem Water Heaters

1 Answer

Hot water heater restarts then turns off. This happens over and over again. It clicks off about 3 seconds after the burner actually fires up. Water Heater: Kenmore Power Miser 9 w/ White Rodgers Intelli...


Service technician is probably best bet for troubleshooting all possible causes from plumbing leak to burner assembly needing cleaned to blower problem to bad gas control valve or tripped ECO, or combination of things listed above.

The intelli vent controller has error codes.
Open link for images, error codes and sample manual.
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html#Intellivent

I think the Kenmore is a Rheem product, but the market changes very fast.
Intellivent control indicates that water heater has a blower on top of heater that communicates with the gas control valve to coordinate combustion.
Rheem recommends the burner assembly be cleaned no less than once a year by trained service technician who has the tools and experience.

Newer gas water heaters, both tank and tankless are maintenance heavy because of energy and safety standards, and because of new electronic controls. Tankless require more frequent attention.

If problem is going to cost more than $330, then install new gas water heater yourself from local box store. I recommend avoiding electronics, and blowers, and tankless so you can hold down costs and maintain the unit yourself.
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Water heater electronics and energy factor are good initial selling points, but all costs are energy, and repairs, service and parts of more sophisticated machines can cost more than the $1 to $8 saving you can expect under best circumstance.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

May 21, 2011 | Water Heaters

1 Answer

Rheem 40 gal. elct. have 220 at both elements all the time but only one drawing?


Your testing may be off here. Or you might have special order 'simultaneous' wired water heater.

Water heaters with two elements are 240V.
Elements test for 120V at all times, but with ordinary non-simultaneous water heater, only one element at a time has 240. This is called non-simultaneous operation.
Open links below for understanding of water heater operation.
http://waterheatertimer.org/How-it-works.html
http://waterheatertimer.org/How-water-heater-thermostats-work.html
http://waterheatertimer.org/B220C.html

If both elements were drawing 240 at one time, then upper thermostat is bad, or else your water heater is wired for simultaneous operation, and one of the elements is burned out.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Your tank might be wired for simultaneous operation, if water heater was special order from Rheem, or if somebody changed wiring and set lower thermostat-and-element on a separate circuit breaker.

If you have simultaneous operation, then you would have 2 circuit breakers and 2 wires going to water heater or one 50 amp breaker with 8 gauge wire to heater. If this is the case, then both elements could test for 240V and one of the elements is bad, and thermostats are ok.

If you have ordinary Rheem water heater, then it is wired for non-simultaneous operation where only one element is ON at a time. This is called non-simultaneous operation and you can check because water heater has one circuit breaker rated for 20 or 30 amps.

Rheem elements are 4500Watts.
If both elements were ON at same time, that would be 9000Watts, which would trip typical water heater 20-30 amp circuit breaker.
9000Watts divided by 240 volts = 37.5 amps
So if upper thermostat is bad, and it is turning on both elements so they both test for 240, then thermostat is bad, but also one of the elements has to be bad.
Or test is inaccurate.
Interesting puzzle.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Dec 09, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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

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