Question about Rinnai EnergySaver 556 Air Conditioner

2 Answers

Rinnai DV Propain Heater 556F

My onlight is red instead of green. The heater still heats but will not turn off, just continually runs. What is the problem?

Jennifer Thorne

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  • Jenn37 Apr 10, 2008

    I noticed yesterday evening that the onlight is red when the temp is set to 68 degrees but works some of the time if I lower the temp setting to 64 degrees.

  • Jenn37 Apr 10, 2008

    That thread is not my problem. My heater is not turning off and the on off light is red instead of green.

  • Jenn37 Apr 10, 2008

    What relya are you referring to? Where is it located. Would this cause the on off light to be red instread of green.

  • Jenn37 Apr 10, 2008

    I called that phone number and it is the recall line for Rinnai. My unit is not in the recall database. They could not help me further.

  • Jenn37 Apr 11, 2008

    Thanks for the manual help. I did read that when the on light is red the burner is running. When the burner shuts down it goes green again and the blower keeps running.

    I checked this against my other rinnai and this holds true so the only thing that now is wrong is that it doesn't shut off when it is at a 68 degree setting.

    I won't have time to get inside the beast until next week. for now I'll just keep it at the lower setting.

    Thanks

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2 Answers

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  • Master
  • 1,342 Answers

Read this thread.

May work for you also.

Posted on Apr 10, 2008

  • Georgia B
    Georgia B Apr 10, 2008

    Here's a link to Rinnai for your heater

    Here's a link to the service manual

    Here's their Contact Link

    Sorry I couldn't be more helpful. I have never serviced one of these units.

    Just trying to help.

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  • Master
  • 3,037 Answers

Sounds like the relay might be going bad and needs to be replaced

Posted on Apr 10, 2008

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  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    Contact Rinnai toll-free at (866) 746-8344 anytime about your problem and about getting a replacement part.

    Let me know if you need further help

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    They couldn't even transfer you or give you a different number to call? What kind of company is that?

    Alright found their other number

    Contact Rinnai

    Freephone 0800 RINNAI

    0800 746 624


    Basically the control switch connecting to what it controls, I believe has gone back, something in between the control and the main board needs to be replaced, I usually call it a relay, but I am not familiar so much with this brand but If you open it up and follow the switch to the main board, something may look wrong, or even if it looks ok, then it still might have a problem. Look for broken or loose connections or anything that may smell burnt.

    Let me know what you find if you choose to open it and please keep me updated. thanks

  • Benjamin Patri
    Benjamin Patri Apr 10, 2008

    possibly post a picture or two after you have opened it up

  • Benjamin Patri
    Benjamin Patri Apr 11, 2008

    Please let us know if you need any further help

  • Benjamin Patri
    Benjamin Patri Apr 17, 2008

    Please don't forget to let us know how this goes and please rate my solution.

    Thank you for using Fixya

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Rinnai 556F stuck on Low and will not produce heat


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Assuming all gas is on, you will need to remove the front cover by first pulling off the very bottom trim piece. This is located below the louvers and by grasping both left and right sides of this trim, pull toward you. It is just held in place by little clips. Now taking a very new #2 Philips head screwdriver, remove 2 screws found on the extreme left louvered section of the front. Then 2 more on the extreme right. Two more near the center of the louvers. Now I think there are two more holding the bottom in. Gently move back and forth the front panel starting at the bottom and work out the clips at the top just below the instrument area. Be careful to not break any of the clips at the top. With the front off, at about the 5 o'clock position you will see a very small round hole with glass over it. Start the heater and look to see if it ignites and stays on for a second or two. If it does but goes out very quickly, you may have a corroded flame sensor. The flame sensor is located by looking into the small hole and up to the 11 o'clock position. All it is is a probe that sticks down. The only way to get to it is by removing the small window section of the heater and use a wire brush used to clean a gun and brush it. Or very gently take a thin but long regular screwdriver and scrape off the probe. Be careful not to damage the fragile white gasket when taking off the sight port.

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Good Luck!

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