Question about Rheem 42VP75FW 75 Gallon Natural Gas Water Heater

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Gas Control Valve replacing!

How to remplace the Gas Control Valve of Rheem 75 Gallon, Model 42VP75FW ?

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  • deividzito Jan 03, 2014

    My heater is Rheem 75 Gallon, Model 42VP75FW. I need to instal the new Gas Valve but I do not know How remove the old one ? , Can anybody help me please?

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  • 16 Answers

Shut off the water and gas to the heater. Drain the heater. Disassemble the gas line to the heater starting at the Union and working to the gas control. Disconnect thermocouple, burner and pilot tunes from the bottom of the old gas control. The old control will screw out of the front of the heater. Grab the entire housing of the control and twist counterclockwise to remove. Perform new gas control install and connections in reverse. Remember to apply at least 4 wraps of Teflon tape on all threads before assembly. (Teflon paste may be used) Do NOT put any sealant on the thermocouple,burner tube or pilot tube connections (these are compression connections, make them fairly snug.) upon completion, fill heater, turn gas back on relite and check for water or gas leaks

Posted on Jan 15, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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

  • 2692 Answers

SOURCE: dripping from drain spout

If you are refering to the "Dripping coming from the preasure tempature valve,Then just turn off the valve where the water goes into the heater and open the P/T valve with a bucket below it draining only emought water to get below the level where it reaches.     Normally the drain valves are plastic with a Male hosebib attached.  Attach a  garden hose to the rain and run it out to a point lower that the vaslve in order for gravity to drain the tank.The valve opens counter clock wise. If the valve is stuck or does not drain,and you have a foor drain handy,remove the whole valve and replace it with a boiler drain valve.  If The tank is located below the drain level then you will have to either pump or carry the drain water to the higher level.     Replace the P/T valve  and reinstall the associated associated piping. I would use tefelon tape on the P/T pipe theads.    You may have to open a hot water faucet in order for the air to replace the water in the tank ,in order to drain. 

Posted on Jan 31, 2009

SOURCE: i have a 75 gal.

I answer questions for free.
My job is to provide resources that help you for free.

1) That being said, my research into FVIRs says you need a plumber when the FVIR trips.
2) The use-and-care manual for your model also says call a technician.
3) Buying replacement parts through a plumber is true for all water heaters except the Bradford White which has a resettable FVIR. BW is the only company with a re-settable FVIR, however the water heater market changes daily.

4) If the FVIR shorted and shut down the water heater, it probably saved a fire and maybe saved a life.

The following site says to call Rheem, who will tell you to call a local plumber.
http://www.terrylove.com/forums/showthread.php?2520-Broke-Rheem-FVIR-waterheater-Please-help

The Rheem lineup of gas water heaters shows you have a 75 gallon tall heater:
http://www.rheem.com/products/tank_water_heaters/gas_water_heaters/
http://www.rheem.com/product.aspx?id=C24E3F52-A6A4-4BC7-AF5B-0DF23A7A0263

The spec sheet for your model
http://globalimageserver.com/fetchDocument.aspx?id=e3d293b7-bedf-4d9f-bf0f-d85b2d8bda5f

The use and care manual has troubleshooting section > it says the combustion shut-off has to be inspected by qualified technician
http://globalimageserver.com/fetchDocument.aspx?id=a92c7d0e-8a95-48ba-8810-cd714f33d47a

To get opinions from professional plumbers in the field:
http://www.thetankatwaterheaterrescue.com/forums/forum3/
http://www.waterheaterrescue.com/pages/WHRpages/English/Troubleshooting/Tanklets/fvir-issues.html

Posted on Nov 05, 2010

em1cl
  • 463 Answers

SOURCE: Have a water heater drain

Hello tiletnickm, first, the plumber's tape and bottle cap is very clever! GREAT JOB!
Many of those valves do have a stem that can be replaced, however, finding the right parts at the big box stores can prove challenging. If you have a local plumbing supply store they seldom have the part in stock, but can usually order the right part for you.

Something you may consider if you haven't drained your water heater in the past year, ( most manufactureres recommend draining them atleast once a year to prevent buildup and extend the life of the water heater ), it could be much less time consuming to drain the tank and then change the valve.
I hope this is helpful my friend!

Posted on Jan 17, 2011

SOURCE: where is anode rod located on 100 Gallon rheem

Anode rods for tank-type water heaters are located on top of tank.
This is true since anodes are about 44" long.
Top of anode is standard 1-1/16" hex nut.
Anodes can be located in 2 different places: either directly screwed into top of tank -or- attached to hot water nipple.
Most times the exploded parts diagram in manual simply shows 'anode rod' without specifing exact location. If your tank has long warranty, then it can have two anode rods, and 1 will be on top and the other probably attached to hot water nipple, or there could be two anodes screwed into top of tank.
http://waterheatertimer.org/Replace-anode-rod.html

If anode is screwed into top of tank, then it will be under a plastic cap -or- it will be concealed under the top cover of tank.
Look for plastic cap, and if none shows, then remove screws holding down metal cover and look there for 1-1/16" hex nut.
Lastly, remove hot water nipple and check for anode located there.
If you have 2 anode rods, then replace with same metal for each.

Add a comment for more free help.
Also 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.

Posted on Mar 22, 2011

  • 5089 Answers

SOURCE: install a water control valve

Rheem does not post service manuals or bulletins.
It's how they treat customers. I do not recommend Rheem because of this problem.
They must expect their customers to pay for service call from Rheem-loyal technicians.

Here are resources that might help.
Rheem: 800-432-8373

http://waterheatertimer.org/pdf/Bosch-Removing_and_Replacing_Watervalve.pdf

http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

General 2008 troubleshoot manual I recently received from a fellow who got it through different company:
Shows parts and general parts diagrams start page 77
http://waterheatertimer.org/pdf/SVC810-Rheem-Ruud-Tankless-Service-manual-2008.pdf

Posted on Oct 04, 2012

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1 Answer

Rheem water heater flashes seven times ,it is in lock out mode


You have Honeywell electronic gas control valve, and error code is 7 flashes.
Probably you have power vent model.
One manual from different company says: "Reset gas control using on-off button on front of control, replace flammable vapor sensor, replace gas control thermostat.
But with Rheem you also need specific steps: Remove gas burner and look for broken glass vial, and then blow out arrestor screen air intake using compressed air, clean burner parts, check for unobstructed venting, you will need new glass vial from Rheem depending on year and model number of water heater that appears on label on side of unit, or they may not have a repair kit for that model, and you might need a new gas control valve depending on model and how extensive problem was
You have Rheem water heater.http://waterheatertimer.org/How-to-repair-Rheem-FVIR.html
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-thermocouple.html

Sep 28, 2012 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

The water heater starts to heat for about 2 to 3 mins then shuts off. Then the pilot will not even light back up for about half hour. then does same thing.


May be the gas control/thermostat, probably the safest thing to do is replace the control. Are you sure the main tube to the burner is clear of debris and the pilot tube. If they are then replacing the control should work, you can find them on the internet, write down the model no. and the serial no. and contact Rheem for a part no. or just buy it from them. Some hardware stores carry controls for different water heaters. If you cannot do this yourself, find a reliable handyman that knows plumbing. The gas control part is probably $75 and up. take care.

Feb 16, 2011 | Rheem 40 Gallon FVR NATGAS Water Heater 6...

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Need a blanket for Rheem Water Heater model #22VRP75.


You have 75 gallon gas water heater.
I install water heater insulation 3 ways:
1) Easiest: buy ready-made blanket from Lowes and use duct tape
2) Harder: wrap heater in ordinary fiberglass insulation and use tie wire
3) Hardest: Build a box out of blue styrafoam >> leaving room for air intake for gas water heater, and space around vent pipe

Instructions for gas water heater:
Do not cover TP valve.
No insulation is put over gas valve or air intake.
No insulation touches vent pipe.
Remember the gas water heater has to breathe air into the burner, and aftter combustion takes blace, hot gases escape so extra space is left around hot vent pipe to avoid fire.

Find age of Rheem: look at 3rd and 4th digit of serial number, for example 06 was manufactured in 2006.

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.

Feb 11, 2011 | Rheem Tank Water Heater G75-125, 75 Gallon

1 Answer

I have a 75 gal. powervent model #42vp75fw. the vapor sensor shut it down and i do not know how to reset it. please help. thank you


I answer questions for free.
My job is to provide resources that help you for free.

1) That being said, my research into FVIRs says you need a plumber when the FVIR trips.
2) The use-and-care manual for your model also says call a technician.
3) Buying replacement parts through a plumber is true for all water heaters except the Bradford White which has a resettable FVIR. BW is the only company with a re-settable FVIR, however the water heater market changes daily.

4) If the FVIR shorted and shut down the water heater, it probably saved a fire and maybe saved a life.

The following site says to call Rheem, who will tell you to call a local plumber.
http://www.terrylove.com/forums/showthread.php?2520-Broke-Rheem-FVIR-waterheater-Please-help

The Rheem lineup of gas water heaters shows you have a 75 gallon tall heater:
http://www.rheem.com/products/tank_water_heaters/gas_water_heaters/
http://www.rheem.com/product.aspx?id=C24E3F52-A6A4-4BC7-AF5B-0DF23A7A0263

The spec sheet for your model
http://globalimageserver.com/fetchDocument.aspx?id=e3d293b7-bedf-4d9f-bf0f-d85b2d8bda5f

The use and care manual has troubleshooting section > it says the combustion shut-off has to be inspected by qualified technician
http://globalimageserver.com/fetchDocument.aspx?id=a92c7d0e-8a95-48ba-8810-cd714f33d47a

To get opinions from professional plumbers in the field:
http://www.thetankatwaterheaterrescue.com/forums/forum3/
http://www.waterheaterrescue.com/pages/WHRpages/English/Troubleshooting/Tanklets/fvir-issues.html

Nov 05, 2010 | Rheem Water Heaters

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