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

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Rinnai 551FT (I couldnt see it on list!)

I just moved into a rental house with a Rinnai Energy Saver 551FT. I have never used a gas heater before - but this one looked pretty straight forward - slide the thermostat thing to the temp I want to maintain the space at and push on. However - it turns itself off again after ten to 20 minutes, no matter where I set the temp, and it stays off. I have to push off and on again to turn back on. At the bottom right corner of the front there is a little door inside of which it says water level - am I supposed to put water in somehow? I couldnt find the manual online, and the real estate agents dont know. As i dont know anything about gas heaters (I just moved to a place cold enough to need them) I dont want to experiment without information! Thanks Feyla

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  • Anonymous Jul 11, 2008

    I have exactly the same problem, with the same model, but sometimes even turning on and off again doesn't work. Also in a rental with equally unhelpful agents.... Not sure where the fiter is though? Can't see anywhere logical on this model. some further advice would be great!

  • Anonymous Dec 02, 2008

    I have this kind of heater too and am in a similar situation.. Unhelpful agent and no instruction manual. I downloaded the manual that was suggested and it helped.. My problem is that the burner light never comes on and the heater always just turns itself off before even lighting. I think i'll have to call for a service unless anyone else has a suggestion.

  • pruiz318 May 18, 2009

    When I switch the heater on , it ignites & the red light goes on - several seconds later the air comes out but within seconds the heater switches off.

  • Nick Galavod Oct 07, 2012

    How about one for a rhfe 550f for a fellow Aussie. Melbourne



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You need to feel in a water bottom part (middle). fill the water until reach the water level sign

Posted on Aug 25, 2009


Try vacuum cleaning the filter as the heater shuts down to protect itself from over-temperature. NB-turn off the heater before doing it. And yes, you add water to the tray (...carefully) - this increases the apparent heat. Peter

Posted on Jul 27, 2007


Thanks Pete (Tasmania) Downloaded the manual. 24 pages. Very helpful, thanks for the link.

Cheers, Simo.

Posted on Oct 29, 2008

I've got one of them too. Here's a download link for the manual: Cheers - Peter (in Tasmania)

Posted on Jul 27, 2007

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Yes, I had the same problem too. Thanks again to Pete (Tasmania) for the link to the manual. Much appreciated.

Willie (Melbourne)

Posted on Jun 28, 2010

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Do you put hot or cold water in

Posted on May 28, 2012

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