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

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Rinnai RHFE-1001FA I have an old Rinnai heater probably installed in 1992 when the house was built. Bought the house in 2001 and haven't had any problems until recently. When I turn the heater down to a low setting, it shuts down completely. Lights go off. This model doesn't have the digital temp setting option - just an on and off buttom with a sliding lever to set the thermostat. It does perfectly fine at higher levels. If it shuts down, I then move the lever to a higher setting and it kicks on, stays on and heats to desired temps. I had someone come in to look at it and he couldn't identify a problem.

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Have a technician check the temperature slection slide for either corrosion or pitting

Posted on Aug 30, 2007

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Have a technician check the continuity on the temperature selection slide. It may have a pit on it not allowing a good electrical connection or coated with corrosion.

Posted on Aug 30, 2007

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I can suggest a around-about solution. I also have the same model installed around the same time. I have the outlet that it is connected to controlled by an electric heat thermostat on a wall at the oposite side of the room. I keep the heater on high at all times and the thermostat controls the electricity to the outlet. It's worked great for the 13 years it's been installed.

Posted on Mar 12, 2007

  • citizenkahn
    citizenkahn Dec 29, 2012

    Bill, how has the power cycling of the unit worked over time? I'm concerned about cutting power to the unit instead of letting the unit manage itself.

  • citizenkahn
    citizenkahn Dec 29, 2012

    Bill, have you had any issues with the thermostat controlled outlet cutting power to the unit? I'm concerned about pulling management of the gas etc from the unit

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SOURCE: Rinnai RHFE 1001FA

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

Posted on Sep 19, 2007

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1 Answer

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It is time to replace it. You cannot get some components like the main board.

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Oct 19, 2008 | Rinnai RHFE-1004FA 38,400 BTU Energy Saver...

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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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