5-7
5
Remote
controller
alarm display
Alarm contents Judgement conditions
Eliminating
condition of alarm
Judgement and correction
E14 Settings failure Main unit in simultaneous
operation multi control
duplicated.
(Outdoor unit detected)
Power reset recovery 1.Check inter-unit control
wiring.
2.Check indoor unit
combination.
E15 Automatic address
setting failure
Insufficient indoor unit capacity. Power reset recovery 1.Check inter-unit control
wiring.
2.Check indoor and outdoor
unit control PCB.
E16 Automatic address
setting failure
Excessive indoor unit capacity. Power reset recovery 1.Check inter-unit control
wiring.
2.Check indoor and outdoor
unit control PCB.
E20 Automatic address
setting failure
Outdoor unit cannot receive any
serial signals from indoor units.
Power reset recovery 1.Check inter-unit control
wiring.
2.Check indoor and outdoor
unit control PCB.
E22 Miswiring error Inter-unit connection are
miswiring error.
Missing phase for the outdoor
unit power supply.
Power reset recovery Check wiring.
E31 Communications
trouble within unit
No communication possible with
MDC for 3 minutes or longer.
Automatic recovery Check outdoor unit control
PCB.
H01 Over-current error Inverter stops after alarm is
detected.
Recovery at restart 1.Refrigerant cycle abnormal
overload operations.
2.Screws connecting the HIC
circuit between the heat
sink are loose.
3.Faulty cooling of heat sink.
4.Check outdoor unit control
PCB wiring.
SM830194-04_Single_BigPAC.indb 7 2014/11/13 18:18:54
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