Question about Rinnai RHFE-1004FA 38,400 BTU Energy Saver Ductless Heater - Natural Gas

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I get a blinking light with the number 12 flashing on my rinnai heater

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  • Anthony Montagna
    Anthony Montagna Feb 08, 2010

    Thank you for your help. I took the spray nozzles off and put a pin to clean them and blew them out and it now works fine. Hope this helps you and others with this problem. The heater has been very reliable and almost maintenance free.
    Thanks again Tony

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With the unit turned off, hold down on the economy button, the up arrow and down arrow all at the same time for three seconds. A number of error codes will start flashing. Copy the numbers down and repost them so we can help you. I suspect a dirty flame rod or poor gas pressure. Can you give us any info on when it fails or does it light when you turn off and back on?

Posted on Feb 07, 2010

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