Question about Rheem Water Heaters

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I just installed a rheem power vent water heater but will not light get 8 flash code. This heater is brand new from home depot.

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Then contact Rheem for warranty service .might have to go thru HOME DEPOT

Posted on Dec 11, 2016

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Rheem 50 gallon powerdirect vent waterheater keeps cycling


Take note of the barometric pressure when this happens.

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RichmondG40PVpower vent gas water heater


1) Type and brand water heater unknown.
Copy following link for Rheem-Richmond tankless error codes:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

2) Question posted under Richmond tank-type power vent.
Error code 24 appears to be Rheem-Richmond tankless water heater.

3) Add a comment with more information about type, brand, age of water heater including what you have tried so far.

4) Call service technician to catch up on required yearly maintenance.

Dec 28, 2012 | Audiovox Richmond 6G40-36F 6-Year Tall Gas...

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Rheem model 41vrp40n flashes twice and stops working


Error code means that you have electronic gas control valve.

Copy following link to identify gas control valve, read error code meanings for each, and download service manual relevant to each gas control, but not specifically Rheem since rheem does not post service manuals.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

The fact that water heater restarts, means that water heater is getting gas, getting sufficient air for combustion, thermister is ok, gas pressure is good, etc.
The fact that you unplug and replug water heater and it works, shows that you have power vent model.
Since water heater worked correctly before, 2 flashes with Rheem power vent model could mean that pressure switch has failed.

Jul 29, 2012 | Water Heaters

1 Answer

My Rheem tankless water heater has been flashing a C8 and 76 code. I can turn off the heater using the power button on the unit, but my hot water will only last for a shower or so. Any suggestions? ...


Before calling service technician, open following link for troubleshoot resources including Rheem chat and contact, possible manual, error codes, etc.:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

C8 76 is generally bad PC board. Call 800-432-8373
Just like a motherboard on your computer, the tankless PC board is operational center of tankless water heater.
Various sensors gather information from water pipes, gas line, vent pipe, and air supply to determine when to activate burner.
Most people understand that when their computer motherboard needs replacement, that computer will probably not work reliably again.

Tankless is basically connecting a complex computer to your plumbing and electrical lines and to a gas burner with a vent pipe to outdoors, despite knowing that plumbing lines, vent pipes, gas burners, and household electrical systems have plenty of problems on their own.

Age factor: When tankless is new and everything operates perfectly, the tankless works correctly.
And each tankless manual recommends yearly and monthly maintenance, just to maintain operation, the cost of which can exceed the expected 1-8$ monthly savings. And who wants to clean the water filter each month and delime the exchanger every year?
http://waterheatertimer.org/pdf/Tankless-maintenance.pdf

Don't buy a tankless water heater because the only folks promising unlimited hot water and effortless water heating experience while saving money with a tankless are the tankless promotors.

Solve most tankless problems yourself, same day, any brand for about $350.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Sep 22, 2011 | Rheem Tankless Water Heater Main Remote...

1 Answer

21vp50-1 rheem water heater, the ignitor is not working


1) Rheem does not show that exact model number, since they list current products only.
http://www.rheem.com/products/tank_water_heaters/gas_water_heaters

2) Rheem serial number shows year of manufacture on second 2 digits. So C06 was made in 2006.
Today's manual might not have troubleshoot steps that match older product.

3) 21vp50 is 50 gallon power vent water heater.
Open following link to identify product.
New models have Honeywell electronic gas valve with LCD flashing error codes.
http://www.rheem.com/product.aspx?id=C24E3F52-A6A4-4BC7-AF5B-0DF23A7A0263
http://waterheatertimer.org/gas-water-heater-timers.html#Rheem

4) Sample manual for newer power vent models shows error codes and troubleshoot steps:
http://globalimageserver.com/fetchDocument.aspx?id=a92c7d0e-8a95-48ba-8810-cd714f33d47a

5) Earlier Fixya answer suggests where to buy ignitor for 21vp50:
PART #HSI51409A
http://www.fixya.com/support/t3641891-rheem_21vp50_1_igniter_stopped

6) Your manual should show troubleshoot steps and expanded parts list.
Always save manuals like gold, and save searching later for a manual at Fixya.
If we can't find the manual, then our answers are limited to suggestions and guesses, since we're not on-site and can't perform troubleshoot steps for you.

7) Post your question on professional water heater forum
http://www.thetankatwaterheaterrescue.com/forums/forum3/

8) Call Rheem and they can possibly suggest which local service technician will work on that model:
2600 Gunter Park Drive East
Montgomery, Alabama 36109-1413
Phone: 1-800-432-8373.

9) Call a local plumber.

10) Install inexpensive home-center brand gas water heater yourself:
http://waterheatertimer.org/How-to-install-gas-water-heater.html

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.

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1 Answer

Rheem Power Vent 2 water heater is flashing 4 times and there is no hot water. Model # 41VRP50NT What can I do to fix this? Do I need to call a plumber?


The flashing light is a trouble sequence light. Find your manual to see what 4 flashes means. It's usually attached to the side of the water heater tank. Try a quick fix by unplugging the power vent and see what happens.

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New gas water heater pilot light will not ignite


Hi .. if this is a brand new heater, then you probably need to have the gas line bled. This means getting all the air out of the gas line feeding the burner. This can be done by constantly trying to light the burner or poilot . or it can be bled down by a HVAC tech.

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Ihave a new water heater.Worked for 3 days.Now back to Ice baths


All new tank-type gas water heaters for the home are designed with Flammable Vapor Ignition Resistant systems. It sounds like the unit has shut down because of a venting problem. If it is a Rheem or Ruud (General Electric for Home Depot) you have to reploace the heater. Other brands alow for resetting this safety device. Don't take chances with gas if you are not absolutely sure of what you are doing - have a professional licensed plumber check out the problem.

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