Question about Rinnai EnergySaver 556 Air Conditioner

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Rinnai EnergySaver 556F Heater flashes

Just moved into an apt with this heater in the living room and when I turned it on for the first time last night it heated up nicely - but after awhile all the lights on it (ON button and the lights above the temperature) began blinking on and off until I shut it off. Is this normal? I have no manual.

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  • DevonA Nov 16, 2007

    Thank you for the manual.

    When the lights are blinking there is no heat blowing from the unit. The Temperature buttons do not work. If I shut it off and turn it back on, it resets to 68 degrees, as programmed, and shortly begins blowing hot air with no problem.

    It is not the filter light and the filter is clean and inserted properly.

    I note in the manual, it says "If the heater does not ignite within 15 seconds the spark will stop and the 'Temperature level' lamps will flash. Turn off and repeat ignition operation."

    My unit does work fine initially and for hours - so it is not the first ignition. For some reason could I be losing the spark? When I turn off and on, it works again for hours.

  • rjdebellis Nov 04, 2008

    556F Heater flashes lights and will not turn on.

  • Anonymous Dec 20, 2008

    does propane gas line freeze

  • Anonymous Dec 31, 2008

    With our current Rinnai heating system, the lights will flash after a while and act like the filter is not clean. However, I have personally cleaned it form time to time but am unable to fully take it out to clean it. I am not sure why it does this or how to fix it. what could be wrong with it.



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I'm picking up a faint propane scent when the heater is completely turned off. When I turn the heater on it lights fine so I don't suspect it's the pilot light. Is this an issue with the installation of the fuel line, or could it still be the pilot? Any ideas on troubleshooting the source?

Posted on May 26, 2008

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This may be normal but lets get you a copy of the owners manual to make sure. Try the link below. You did not mention if the unit still produces heat or not. If not, let us know and we will do our best in helping you.

Posted on Nov 13, 2007

  • Chandler Ede
    Chandler Ede Nov 17, 2007

    In the manual it will give you a procedure to recall the error codes stored in the memory. Get a pencil in hand and be prepared to write them down. If will help if a friend writes them down. I think you have to press a few buttons together to get the error codes. From there it may stear you in which direction to head in for repair.



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