Sanyo Big PACi 18 Series Technical Data & Service Manual page 224

Remote
Alarm
controller
contents
alarm display
E14 Settings failure
E15 Automatic address
setting failure
E16 Automatic address
setting failure
E20 Automatic address
setting failure
E22 Miswiring error
E31 Communications
trouble within unit
Over-current error
H01
Judgement conditions
Main unit in simultaneous
operation multi control
duplicated.
(Outdoor unit detected)
Insufficient indoor unit
capacity.
Excessive indoor unit
capacity.
Outdoor unit cannot receive
any serial signals from indoor
units.
Inter-unit connection are
miswiring error.
Missing phase for the outdoor
unit power supply.
No communication possible
with MDC for 3 minutes or
longer.
Inverter stops after alarm is
detected.
5-7
Eliminating
Judgement and correction
condition of alarm
Power reset 1. Check inter-unit control
recovery wiring.
2. Check indoor unit
combination.
Power reset 1. Check inter-unit control
recovery wiring.
2. Check indoor and outdoor
unit control PCB.
Power reset 1. Check inter-unit control
recovery wiring.
2. Check indoor and outdoor
unit control PCB.
Power reset 1. Check inter-unit control
recovery wiring.
2. Check indoor and outdoor
unit control PCB.
Power reset Check wiring.
recovery
Automatic recovery Check outdoor unit control
PCB.
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.
5