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I am getting code flash on screen 1 and 11. whats that mean. heater still seems to be working.

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Posted on Jan 02, 2017

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cballard
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SOURCE: Rinnai tankless water heater code 12

12 - Flame Failure or Poor Ground

1. Immediate code 12 is usually a defective gas valve, power supply problem, or defective fan motor wiring harness.

2. If code 12 occurs after a few seconds it indicates that proper operation was established, but then stopped unexpectedly.

3. Verify that fuel is being supplied to the unit.

4. Check for proper electrical ground. Unit must use a grounded power supply.

5. Check for flue blockage on inlet or exhaust.

http://www.foreverhotwater.com/service-codes.php

Posted on Dec 31, 2008

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1 Answer

I have a Noritz tankless water heater (model n-132m). I am getting an error code of 71. What does that mean?


The Noritz Manual shows fixed for the following error codes:
11
21
90
99
For all other codes this is the recommendation:
Contact our sales agent if:
• Any other error code appears.

Sep 12, 2014 | Noritz Commerical Tankless Water Heater...

1 Answer

Why does remote UMC-117 flash error code 11 and then L1?


Multiple error codes can mean bad PC board.
C11 is combustion, vent or gas issues
L1, heat exchanger needs delime.
Catch unit up on required maintenance each year.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#error

Gene

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Jun 17, 2014 | Rheem Tankless Water Heater Main Remote...

1 Answer

What does code 2, 4 mean in my 40gl Rheem electric water heater mean and how do I fix it


Copy following link to identify gas control and see error code chart, and service manuals:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Rheem does not post service manuals, and most questions on fixya are about Rheem products.
Seem they make a troublesome brand of heaters with little help from company.
Gene
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Oct 06, 2013 | Water Heaters

1 Answer

I have a paloma ptg2-42pvn tank less water heater. I recently installed the remote as the unit quit making hot water. I wanted to see if it was producing a code. The remote is flashing 76 repeatedly. I...


Bad remote control. Bad wire to remote control. Bad PC board.
Copy following link for resources, including older service manual and error codes and rheem chat for ordering replacement motherboard for your tankless computer.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

If tankless computer is 5 years old, then compare that to your 5-year old cell phone or 5-year old laptop, and ask if the chipware still functions or can be repaired to function back to factory fresh expectation.

Later today, install tank type water heater and solve all tankless computer problems with one ez step. Have hot water for shower same day with less maintenance and fewer long-term problems and expense.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Gene
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Aug 24, 2013 | Water Heaters

1 Answer

What does code 79 mean for the rinnai RU98i? It is beeiping and flashing 79


There is water leakage internally. Possible tank or water inlet or water entering from the combo air inlet/exhaust pipe.

Jan 09, 2013 | Rinnai Water Heaters

1 Answer

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.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Jul 29, 2012 | Water Heaters

1 Answer

Water heater fails to turn on. the light single flashes once every other second i just replaced the elements after the water heater had sat for months without working what can i do?


If you have the manual for it you can find out what the flashing code means, in your case it's one flash. If you know the brand of the heater then you can look them up on the internet and find the 800 number to call for troubleshooting.

Nov 24, 2010 | Whirlpool Water Heaters

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The red light on the water heater keeps flashing


Attached to the water heater is a troubleshooting chart for your sequence light. 1 flash means..., 2 flashes means...., and so forth. Find the chart, count the flashes and see what it means and we'll go from there. Douglas

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1 Answer

Unit flashes the number 20


A 20 error code means the high limit switch is being tripped. This is most typically caused when scale develops in the heat exchanger. I'd recommend performing a descale on the heater to resolve the problem. Make sure to follow the instructions that came with your isolator valve kit.

Jul 10, 2010 | Noritz 8.4 Gallon Residential Direct Vent...

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