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Rheem tankless water heater eco180dvn3 error 12

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Http://www.waterheaterrepairinstructions.com/Eco180dvn3-Manual.html

www.waiwela.com/downloads/manuals/MIC-6_Manual.pdf

http://www.rheem.com/products/tankless_water_heaters/customer_support/
Go to the above website to get the error codes explained and what to do, at top is a link for your manual, below is the controller manual, below that is the support link...
The number 12 error code appears in a Rheem gas water heater's display if there is an interruption in the heater's gas service. Your gas company should be contacted to address the problem. In LP models, the 12 error code may also appear if the LP gas supply has gotten low. To clear the code, replace or refill the LP gas supply.

Posted on Apr 05, 2011

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My Paloma pg-711fr is turning itself off and error 12 comes up


Copy following link for error codes and Rheem-Paloma tankless troubleshoot.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#error
Add a comment and say if this is new installation.
Call Rheem and hear them tell you to call the tankless installer, or hire local service technician to check your tankless computer that heats water, and catch up on required monthly and yearly maintenance. For example cleaning burner and flame rod, or replacing bad flame rod, or installing correct gas line, or checking gas pressure etc.
Fix any tankless problem yourself, any brand tankless, same day for $385, by replacing 1 part: the whole thing:
http://waterheatertimer.org/How-to-install-gas-water-heater.html
Do not install tankless.

Jul 21, 2013 | Water Heaters

1 Answer

Manual


Copy following link for Rheem tankless troubleshoot resources, including error codes, manuals, and general information for maintaining your tankless computer that heats water.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
Multiple error codes can indicate failed PC board. Rheem will send PC board... so your computer-that-heats-water might have failed motherboard.
Continual maintenance can help avoid common error codes, but some problems are insoluble and chronic.

Jul 16, 2013 | Rheem RTG-74PVN-2 Natural Gas Pronto Whole...

2 Answers

We are getting multiple codes. Can someone help us. Last year we got cod c2 11 which we found out we just have to clean the probes in the unit. So we did that yesterday again and everything worked great,...


Rheem, Richmond, Ruud, and Paloma are all the same manufacturer. After about 9 months, my tankless RTG-74PVN started giving me error code 11 and cold water!. I fixed it by cleaning the burner, as shown in this video:
www.howtolou.com/clean-a-burner

Jul 31, 2011 | Rheem EcoSense by 7.4 GPM Tankless Water...

1 Answer

Every time it rains our instantanious hot water system comes up with error C9 and C12


Before calling service technician, open following link for Rheem troubleshooting resources including contact and chat and typical manuals:
http://waterheatertimer.org/pdf/ErrorcodeTroubleshooting.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error codes are start points for troubleshooting and can include long list of things including multiple causes.
Error code 12 shows 'condensation collar' and 'vent lengths' which are associated with the vent to outdoors. Changes in air pressure during low-pressure rain events MIGHT affect the venting and cause tankless not to ignite, and MIGHT cause excessive condensation. Improper condensation can rust out the heat exchanger without showing any signs of problem until the unit is ruined.
C9 is not listed. Contact Rheem, and then add a comment saying what Rheem suggests as solution for C9 error. This will help others in the community with same-similar problem.

Instruction manual recommends yearly maintenance by qualified service technician.
This maintenance would usually check all things shown in error 12.

Jul 18, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Rheem tankless ecosense code 11, calls for 3 wc and getting 5wc, how do you adjust the manifold pressure m#eco180dvn3


Sorry to read about your problem, I hope this helps you out.

your WC pressure is fine it needs 3 and you have 5, can handle 8
The gas company adjust at meter, you have other issues

Check gas solenoid valves for open or short circuits.
Ensure igniter is operational.
Check igniter wiring harness for damage.

THIS IS A GAS PRODUCT, INCORRECT REPAIR CAN CAUSE A EXPLOSION, AND DEATH CAN OCCUR. IF YOU DO HAVE THE PROPER TOOLS SUCH AS MANOMETER AND LEAK DETECTORS, I SUGGEST YOU CONTACT A SERVICE COMPANY

Jan 04, 2011 | Rheem Tankless Hot Water Heater...

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