Halcyon 9RLS3, Troubleshooting Manual

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Halcyon HFI Flex Outdoor Unit
AOU48RLXFZ, AOU48RLXFZ1
• When error occurs, “Err” and “Number of error occurred” are alternately displayed in 7 seg. Display.
•
The latest error code can be confirmed by pressing the ENTER button.
• When error codes are displayed, all the error codes can be confirmed by pressing the SELECT button.
Example: When “Discharge thermistor error” and “Compressor thermistor error” have occurred.
E r r
2
E 7 1 1 E 7 2 1
ENTER
SELECT
SELECT
Press the “SELECT” button.
ENTER
Press the “ENTER” button.
CODE DESCRIPTION CODE DESCRIPTION
E113
Serial communication error
E751 Suction gas thermistor error
E114 E771 Heat sink thermistor error
E156 Check-run unfinished E821 Sub-cool heat EX. gas inlet thermistor error
E212 Number of wires and pipe error E882 Sub-cool heat EX. gas outlet thermistor error
E221 Indoor unit capacity error E831 Liquid pipe thermistor error
E242 Number of indoor units error E841 Current sensor error
E243 Number of Branch boxes error E861 Discharge pressure sensor error
E5U1 Indoor unit error E863 Suction pressure sensor error
E621 Outdoor unit model E864 High pressure switch error
E631 Inverter error E941 Over current error
E641 A.F. voltage error E951 Compressor control error
E653 IPM error E973 Outdoor unit fan motor error
E6A1 Display P.C.B. communication error E991 4-way valve error
E711 Discharge thermistor error EA11 Discharge temp. error
E721 Compressor thermistor error EA31 Compressor temp. error
E733 Heat Ex. Liquid outlet thermistor error EA51 Low pressure error
E741 Outdoor thermistor error EJ2U Branch boxes error