Question about Rheem Richmond XR90 High Performance 30G Nat Gas 6-Year Water Heater

1 Answer

Code 83 just got installed power up and get code 83 right out of the box

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,669 Answers

I couldn't find a list of the error codes on line. Please contact and put in a request for the codes for your model number.

Posted on Jan 03, 2013


1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I recently had a new electric hot water cylinder installed, but am unhappy about the electric tubing which travels along the wall from the cylinder to the power box.

get the electrician back to make it comply with the power authority standards for wiring installations
If he objects have the wiring inspected by a power inspector , who will , if not satisfied , issue the electrician with a notice to conform or face a charge

Apr 21, 2018 | Water Water Heaters

1 Answer

Our rinnai R94LS will shut off after running several minuets and shows error code#10. I'll turn it off for several minutes and turn back on, run system for several minuets and it will shut off again and...

Tankless computer is not working.
Error 10 is blocked flue or inadequate air supply. Or failed PC motherboard, or failed sensor etc.
Get more fresh air to unit. Check if bird built nest on flue pipe. If flue exits side of house, look for obstructions nearby that can slow the exit of poisonous vent byproduct into the air you breathe. For example trash cans and boxes or parked car etc.

Call service technician who is qualified to work on tankless computer. This will be a well-seasoned veteran of computer technology and plumbing expertise ... a plumber who knows how to fix computers lol.
This person will catch unit up on required yearly maintenance, and check specialized operation conditions needed for tankless computers to function properly.
If tankless computer is older than 5 years, then compare it to your 5-year old laptop, and assume same level of glitches and problems.

Solve any tankless problem yourself, today, for $385 by installing tank type heater from local box store:


Aug 29, 2013 | Rinnai Water Heaters

1 Answer

Can I install a junction box before my water heater junction box?

Junction box is fine.
Must be accessible and not hidden inside wall.

43 feet is not over 100 feet, so wire size can stay same.
Recommend 30 amp breaker and 10 gauge wire for 4500 watt water heater.
If circuit has 20 amp breaker and 12 gauge wire, recommend 3800 watt elements.

Mar 21, 2013 | Water Heaters

1 Answer

My Boch 24ES Highflow Hotwater is showing Code 14 and only runs for i minute then shuts off

Code 14.
What water heater do you have?
Question posted under tankless Bosch, but these error codes start with a letter.
Rheem/Richmond etc Tankless has error code 14
Call tankless service technician.
Ask technician how much it costs to have recommended yearly service.

Or install whole new tank-type gas water heater yourself for $350 from local box store, and avoid the entire headache, then sell tankless online for parts.

Aug 09, 2012 | Water Heaters

1 Answer

What is code 34 in a 1991 buick century 3.3 engine?

You MUST replace the MAF sensor as this was a very common failure on the late 80's and early 90's GM vehicles.

I have seen brand NEW ones right out of the box that were faulty so be careful as you might get a faulty one of which will give you the same code again.

Jul 06, 2011 | Water Heaters

1 Answer

Burner will not increase when second faucet is turned on

Turn of the hot water valve and turn on a hot water tap in the house. If You have water flow, then you have a problem with a faucet (usually a shower valve). Go to the shower valve and see if you hear water running. If so that is likely the problem. Otherwise there is not enough gas to fire the unit that far and it will fail out. Check the manual most people install these units wrong. If you install it to code then you did it right. If you install it to the manufacturer's specs, you installed it to code and it is right. Then the only adjustment is with a Calibrated CO2 analyzer (instructions in the manual).

Apr 02, 2010 | Bosch AquaStar 250SXO-LP-RE...

1 Answer

I have a 50 galon smartwaterheater that came with the home and im trying to figure out how to work the gray timer box on wall

The gray timer box saves power by turning the power off and on to the water heater. Most that I have seen have a 1/4 inch screw head that you loosen and tighten to change the time it runs and shuts off. Basically operates like the outlet timers you use from a wall outlet.
Installed one for my mom over 25 years ago, still working.

Nov 27, 2009 | General Electric GE SmartWater Household...

2 Answers

We have a 83 Gal. Rheem 41V50 40,000 Btu - What do we replace it with? It is leaking

The model number you gave is for a 50 gallon tank, not 83 gallon.

50 gallon ones are readily available, including the same model..

Oct 20, 2009 | Rheem 50 Gallon FVR NATGAS Water Heater...

2 Answers

Flashing 1L on screen what is the problem and how do i fix it (i installed this unit 8 months ago)

if you are saying you instaled it 8 months ago, if you are not licensed you have voided your warranty,,, if you had it installed you do have at a min of 1 year labor and can call your installer, when they started doing the tankless water heater there installers are supposed to go to classes for installing these units and the company's that manafacture them will provide you with assistance on any problem, in your book it will tell you what is wrong on the code page if you don't have the manule go to there website they have all the codes listed,,

Apr 15, 2009 | Rheem EcoSense by 7.4 GPM Tankless Water...

Not finding what you are looking for?
Rheem Richmond XR90 High Performance 30G Nat Gas 6-Year Water Heater Logo

80 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rheem Water Heaters Experts


Level 2 Expert

68 Answers

Brad Brown

Level 3 Expert

17151 Answers

Jim Goldsmith
Jim Goldsmith

Level 3 Expert

2005 Answers

Are you a Rheem Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides