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Carrier Infiniti system, system maufunction on primary display

Hello,

I purchased my home 1.5 years ago and this elite system was installed. It has worked fine until recently. I'm gettin " system Malfunction on my primary display unit in the MB. If I go to the attic and reset power( unplug unit) display clears and unit cools again. I found some unmbers on the outside unit( heat pump) 24ana748a300, but I have not found the model number on the attic unit. I have reset the unit 4 times in the last 7 days. It has been inconsistant on reset time..early morinig and very last at night( when its not very hot) and aslo in the middle of the day. I did read something about the Primary control unit( big Motherboard on the wall) sometimes gets confused talking to the attic unit and it needs to be reset. Your help would be very much appreciated..

Thanks
Perry

Posted by on

  • pstringfello May 15, 2009

    Thank you for the advise. I was hoping for a few things to try or symptoms to look for that could be causing the problem. About a year ago the unit did the same thing,I called a tech to the house he came out, looked at the unit for about 2 hrs and said he couldnt find anything and charged 75$. The Motherboard that has the 2 leds that indicate the code or problem are fine, no flashing at all.



    Thank you,

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  • 38 Answers

Call a Carrier service comapny and have them investigate further, when system malfunction comes up on the user interface usually there is a substantial problem.

Either that or the User Interface has gone bad and needs to be replaced

Posted on May 14, 2009

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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