Gree GRS-CQ6.0Pd/Na-K Service Manual page 65

AIR-TO-WATER HEAT PUMP
5) Press button or
automatically release without any input after 20 seconds.
3.2.3.14 Error Code Display
When the error is occurred to indoor unit or outdoor unit, the error code will be
displayed on control panel. Icon
Error code
F4
Malfunction of outdoor environment temperature sensor
F6
Malfunction of defrost temperature sensor
F7
Malfunction of discharge temperature sensor
F5
Malfunction of suction temperature sensor
EF
Malfunction of outdoor fan
E5
Overload protection of compressor or malfunction of driver
E1
High pressure protection of compressor
E3
Low pressure protection of compressor
E4
High-temperature protection of discharge
C5
Malfunction of indoor capacity switch
E6
Communications failure between outdoor and indoor mainboard
E6
Communications failure between outdoor mainboard and wired controller
Fc
Malfunction of high pressure sensor
F9
Malfunction of outlet temperature sensor
dH
Malfunction of backup outlet temperature sensor
F1
Malfunction of liquid pipe temperature sensor inside refrigerant
F8
Malfunction of inlet temperature sensor
FE
Malfunction of the second sanitary water tank temperature sensor
button to return to the main menu. The system will
will show.
The table of error code
Error description
CONTROL
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