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I have a Rheem EcoSense hot water heater and all of a sudden I have no hot water. I have changed the gas and batteries but still no hot water. Can you help?
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Before calling service technician, copy following link for ecosense tankless troubleshooting resources. C7 is communication failure with remote, and C12 is flame failure. Multiple error codes could mean bad circuit board, loose wire, low gas pressure, or simple communication problem with remote control. http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html
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