Question about Carrier Heating & Cooling
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..
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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Posted on Jan 02, 2017
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F then 1 flashes when there is a primary control
failure. Replace the machine control assembly. The part number for the control board is W1018966
it could be
purchased at your local appliance parts store or online
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