Tip & How-To about Carrier XHB123D X/Y Series Heat/Cool Air Conditioner
CONTROL PANEL ERROR
CODE
PROBLEM
REMEDY
E4
Thermistor problem
Shutdown unit and restart
E3
Unrecoverable of
E2RAM data
Shutdown and unit and restart
E2
Loss or corruption of stored data
Using remote control go to Cool mode and shutdown the
system, and then restart.
E1
Code validation check fail
Shutdown and unit and restart.
FL
Filter check warning
Press the “MODE” and (DOWN) “▼” buttons together until
error code disappear.
Note: If the problem persist replacement of control board is
needed.
-Push arrow up and arrow down together for 5sec. the room temp. will show.
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