Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm

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WON'T STAY LITE CODE C211 - Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm

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  • Barrett Palumbo
    Barrett Palumbo Jan 03, 2011

    two many digits is it C 21

  • haee_gordon Jan 03, 2011

    WORKS SOME TIMES BUT NOT MOSTLY CODE C211

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Ain't necessarily so. I just went through this. The unit worked flawlessly for six years then crapped out with a code 12. Using the engineering manual available from the Paloma site, I removed the complete burner assembly and sanded each flame rod and igniter. I brushed the burner assembly with a stiff paintbrush and reinstalled. Worked better than it has in a long time. The flame rods and igniters get a crud build up that needs to be cleaned off. It is a major disassembly including removal of the PC board - but the connectors will only go on to a particular spot.

Posted on Apr 12, 2013

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

your error code, is you have clogged burners, and they will have to be cleaned,
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

Posted on Jan 03, 2011

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Before calling service technician, open following links for Rheem troubleshooting resources:
C2 11 is no ignition:
http://waterheatertimer.org/pdf/ErrorcodeTroubleshooting.pdf
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

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