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S4359146
12-10. The Main Alarms of Power Supply Troubles
Cause Remote controller display
Outdoor protection Power supply voltage is abnormal. P2
(More than 260 V or less than 160 V between L and N phase)
Negative phase or defective phase P5
Compressor contactor (Mg SW) is chattering. H18
12-9. The Main Alarms of Unit Troubles
Trouble detected Remote controller display
Indoor protection Fan motor protection thermostat P1
Outdoor protection Fan motor protection thermostat P2
Compressor protection thermostat
Abnormal discharge temp. P3
High pressure switch P4
Indoor protection Float switch P10
Indoor sensor Open/or damaged F1-F3
Outdoor sensor Open/or damaged F4-F9
Compressor Compressor motor is overloaded. H1
protection
Compressor motor is locked. H2
Compressor current detection circuit is abnormal. H3
Low pressure protector is activated. H6
* Ref: Alarm “P9” is not generated if the remote controller is set at test run.
12-8. The Main Alarms of Mis-wiring & Mis-setting
Remote
controller
display
Nothing
displayed
• In case of individual remote control
• Remote controller not properly connected.
• Power supply not ON.
• Remote controller not properly connected.
• Wiring connection fault of
indoor/outdoor units
• Power supply of outdoor unit not ON.
• Combination of indoor/outdoor units is wrong.
* Power supply of some indoor unit is not ON.
•Improper wiring connections of ceiling panel
E1
E4
——
P9
(*)
E9
• 2 main remote controllers set.
E6
In case of group control
In case of multiple remote control
• Wiring connection fault of some indoor/outdoor units
inside the group
Cause