Question about Rinnai RHFE-556WTA Direct Vent Heater NG Air Conditioner

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Rinnai 556wta gas heater keeps shutting off

I have a rinnai 556wta gas heater in my apartment newly installed and it keeps cutting off after only minutes or an hour or so and flashing the number 53 in the center and a red flame symbol. It will not stay on and has a number of other issues...including incorrectly reading the temp of the room, only allowing me to set the temp as high as 76 degrees, and (without programming) reseting its temperature to a lower one. The management of my apt complex appears hesitant to address the issue. They installe dthe heaters a few weeks ago and we are just now using it. The filter is clean. I suspect there was an issue with installation. Any suggestions on what might be wrong and what to tell them?

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Return the heater while you can, we bought 2 of these and have had the same problem with both of them. One of the units they replaced all the guts and still had to replace it. The other unit is out of warranty and I am considering just replacing it to save on repair costs which will eventually equal more than the cost of the unit. The thermostat wire is located in the back and can be stapled to the inside wall up off the floor. It was not installed properly. Good Luck!

Posted on Feb 04, 2009

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