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

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My new RHFE-1004FA has a slight whistle to it.

Went to camp today to start the furnace for the winter. When I fired it up it seems to have a slight whistle that is intermediate. It didn't do that this fall when I installed it. I did add a propane tank. Is it possible it has air in the line? If so how do I purge it?

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  • bjd9 Nov 23, 2008

    Please help!

  • Mark Habeeb Dec 08, 2008

    I have the same problem with my 1004FA.Talked to tech. support they said it was from having high traces of methanol in the LP tanks.You have to use a manometer to adjust the air shutter on your Rinnai.

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May have a bad regulator on the tank or bad gas pressure. The colder it is, the less gas pressure you get out of the tank.

Posted on Jan 05, 2009

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1 Answer

I need the sheet to correct the wistle noise on the 1004 e moore @maineenergy.net


The whistling noise may be from an improper air intake shutter control adjustment. For a Natural Gas Unit the air shutter control should only be open about 1/4 " . Also, when checking that, look to see if it's clogged with dust and lint. If so, vacuum it out using a crevice tool on the hose of your vacuum.

Vent-free Gas Appliances should be cleaned and serviced at least once a year. Usually in the Fall before firing it up for the heating season. Twice if you have house pets. Especially one's that shed a lot.

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Is it giving you any error codes? Can you give us any more details like how do you get it started or is there a noise associated with the failure?

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Beside the filters in the back, no they don't require much. After 8 years of installing and servicing these units, I haven't found a unit yet that was running faulty due to lack of service. Would recommend a cleaning of the burners about every 3-5 years. Rinnai recommends cleaning the unit with compressed air through the front grate annually...but that doesn't require disassembly

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sounds like you have dust or spider web in one of the burner tubes. turn power off to unit and clean the burners especiaally by the nossles

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i have a rinnai rhfe 1001fa heater and when its real cold sometimes it will shut down all the lights go out and i have to shut it off then turn it back on and sometimes it still wont start and i will leave it of for a day or two then try it and it will work it seems to act up more when its colder i am running it this fall so far no problems this unit is around a 1994 or so and has not given any trouble till this started last winter

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