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

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My rinnai 556fa thinks that it is 10 degrees warmer in space than setting and won't come on???

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Where is the room sensor? High on the wall will be warmer than close to the floor.


Posted on Oct 13, 2010


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My rinnai 556 will not start, the only light is with the child lock pressed, on/off does not light? any ideas?

HI, Dear your rinnai 556 is not starting thats why it can not genrate the error code ,i advice you in this case you can not identifiy the exact problem. but i m trying to help you with my best tring:-
What you need to do -
Check the model number and serial number which are found on the data label located on the bottom of the right hand panel of the unit. Any Rinnai Energysaver Models RHFE-556T and RHFE-556FTRG Gas Air Warmers with a serial number contain the the year (YY) digits "00" to "07" may be affected. If you cannot read the data label or think you may have an affected model do not use the Air Warmer and inform anyone who may use the Air Warmer that they should not do so. Contact the Rinnai freephone helpline for further instructions, even if you have not experienced any problems

HELPLINE 0800 0304 556 or you can visit or email if you have any further questions.

The helpline staff will validate whether you have an affected product and will arrange for a Gas Safe Registered Engineer to visit and replace the gasket in the air Warmer.

i hope this will be helpfull to you. PLEASE DON'T FORGET TO VOTE ME. GOODLUCK..............

Jan 21, 2011 | Rinnai RHFE-556FAIII 21,500 BTU Ductless...

1 Answer

My error is ee88, how low should i set the temp in my basement, i've been setting it at 54 i think it has to be atleast 56 degrees

Normally, the air temp in a basement doesn't change more than 10 degrees throughout the year (Unless, you live in an extremely cold environment). If your just trying to knock the chill off during the winter and keep pipes from freezing 55 degrees is adequate.

Jan 19, 2011 | Rinnai Toyostove Direct Vent Heater: Laser...

1 Answer

Would like to raise the temp sensor up off the very cold floor so that the heater will not run as much. It keeps the space warmer than needed when nobody is home. Is there a kit available to do this?

Just to confirm unfortunately there is no kit available to do what you request. The sensors in all Rinnai heaters are located where the cold air is drawn in to the heater, usually at low level where the colder heavier air sits. I'm guessing you have tried setting the temperature as low as possible when you are out. Basically the solution to your problem led to Rinnai putting timers on heaters so people can set heating times around when they are in or out of the house. Unfortunately there is no way to add a timer to a non-timer unit. Sory for the bad news

Aug 11, 2010 | Rinnai Heating & Cooling

1 Answer

I have a rinnai heater 1004F. Since I began using it last month my electric usage is up llKWH per day. I have it set for 60 degrees as I'm using it to take some of the load off my infloor heating system....

The question is, what was you Kw usage same time last year and is the weather warmer or colder than last year? Put an Amp meter on the black wire going to the control board and start the heater. Then check the rating plate on the side of the unit to see if it is within rating.

Mar 08, 2010 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

1 Answer

I set my program for 72 degrees, but as the room heats up, it stays at 68 degrees with out getting any warmer. Though the radiator is on, it does not get any warmer, help???

Hi, The problem would not be with the thermostat, it would be with the unit itself. It may be under sized for the space you are trying to heat, I don't no how large the space is and what btu rating is of the heater. It would also depend on the insulation value and windows in your home. Does the heater run all the time and not shut off trying to keep up? Please get back to me on this so we can come up with a solution.

Dec 30, 2009 | Honeywell Programmable Thermostat Heater

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My rinnai 556fa propane heater

I had the identical trouble with my Rinnai 431F just now & read the unanswered posts.

I checked my intake & exhaust & found them connected & intact then went out to check the exterior vent assembly. The "bell" or dome was almost entirely clogged with ice.

I suspect the 60 - 76 lights flashing means insufficient combustion air.

Anyway, I took a hair dryer to it & in 10 minutes it was working as well as ever.

This won't help you October posters but if anyone else has this problem in the future I would start with the outside vent assembly. Get a good look right up inside because I would have missed this ice if I didn't get up close with a flashlight.

Here's a good source for manuals too...

I'm going back to bed.


Oct 29, 2008 | Rinnai RHFE-556FAIII 21,500 BTU Ductless...

2 Answers

Temperture bulb

A temp bulb will is only accurate to plus or minus 10 degrees sometimes as much a 20 degrees the ideal place for the bulb is in the intake air flow the bulb comes with a line that is long enough for this application

Oct 07, 2008 | Rinnai RHFE-556WTA Direct Vent Heater NG...

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