Question about Rinnai EnergySaver 556 Air Conditioner

2 Answers

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.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer
Re: Rinnai EnergySaver 556F Heater flashes

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

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,420 Answers
Re: Rinnai EnergySaver 556F Heater flashes

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

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Rinnai energysaver 556 blinking

Hi jmsocr2315,

If my description of what your heater is doing please read through to the end.

The heater is turned on and a room temperature is selected.
You can hear the noise of a small fan start, which shortly after the heater starts.
After a short period of time the heater stops and the red led begins to flash and shuts itself down.

This type of heater has a balanced flue, which means it draws air in one pipe and exhausts it out another.
Have the balanced flue checked for blockages, the problem will most likely be in the flue pipe which draws the outside cool air into the heater and not the flue pipe which blows out the hot air.
it may be full of cob webs or something else which restricts the air flow to the heater.
A service person can perform a quick test to prove the above theory. At the rear of the heater there are two pipes, one is an insulated metal pipe and the other is plastic pipe.
Disconnect the plastic pipe from the flue box and restart the heater.
If the heater runs normally this will confirm that there is a blockage.

Feb 05, 2014 | Rinnai EnergySaver 556 Air Conditioner

2 Answers

Rinnai DV Propain Heater 556F

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

Apr 10, 2008 | Rinnai EnergySaver 556 Air Conditioner

1 Answer

I have a rinnai energysaver 556f heater and the "On" buttons keeps flashing and it feels like it's blowing cold air. The "LO" button keeps flashing as well. What does this mean?

It is telling you that there is an error code stored in the EPROM. Press and hold the Economy button and the Up and Down arrows for 5 seconds. Get ready to tell an assistant the codes as they pop up. You may have to do this a few times to get them all. Repost the error codes here on Fixya if you don''t have an owners manual to interpret the codes.

Feb 25, 2011 | Air Conditioners

1 Answer

Error code 11 on a Rinnai energysaver 556FTR


The 11 code means Missed Ignition. This is a broad error code. It just means the stove did not light when it was supposed to. I would check the fuel first to be sure the valve is on and you have gas. Next, try to start the stove with the room dark. Look into the window to confirm a sparking. This is the igniter. At the same time be sure the combustion motor is running. You should be able to hear it and feel the stove to confirm this. If the motor does not turn or the flue is blocked you will not get any gas to flow. Look outside to confirm the flue is not blocked.

Keep us posted,


May 29, 2010 | Rinnai EnergySaver 556 Air Conditioner

1 Answer

My tank says I have 32 gallons left but the heater won't work (rinnai 556f). It turns on for about 15 seconds and the light on the power button turns red and starts blinking. What does this mean?

If you hold down the economy button and the up and down arrow buttons for 5 seconds the unit will start an error code display. Get a helper and yell out the numbers when they start blinking. Post the error codes and we can help you

Dec 23, 2009 | Rinnai EnergySaver 556 Air Conditioner

1 Answer

Rinnai 556F Not Exactly and "Energy Saver"...

Raise the thermistor. It is a black rubber probe located on the back of the heater close to the coldest spot in your home, the floor. Raise it a few inches. To do this you will need to unhook it from its holder and open the front of the heater to unravel the extra length of yellow wire.

Jan 24, 2009 | Rinnai RHFE-556WTA Direct Vent Heater NG...

1 Answer

I have a Rinnai Energysaver 556F

The heater will have some error codes stored in it. To retrieve them get an assistant to write down the codes as you see them. They come quickly. OK to get the codes, push down on the Economy button and the up arrow and down arrow at the same time. Hold for three seconds. It will take three fingers to do this. Once you get the error codes, look in your owners manual to diagnose.

Nov 21, 2008 | Rinnai RHFE-556WTA Direct Vent Heater NG...

1 Answer

Rinnai 556F stuck on Low and will not produce heat

The Low code indicates that the heater did not start because of lack of gas or that the flame rod did not sense enough heat. Make sure all gas valves are on and if you use propane gas, that it has gas in the tank.

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.

If the heater never started, you have a restriction in the gas train. Typically I find that spiders make a nest inside the gas burner because the bugs they eat likes the gas smell. The only way to get to their web is to remove the burner from the unit and clean it. This is not an easy part to remove and suggest you call a technician.

Good Luck!

Nov 03, 2007 | Rinnai EnergySaver 556 Air Conditioner

Not finding what you are looking for?
Rinnai EnergySaver 556 Air Conditioner Logo

4,370 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rinnai Air Conditioners Experts


Level 3 Expert

347 Answers


Level 2 Expert

85 Answers

Are you a Rinnai Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides