MegaLife ARV Series, Service Manual, Page: 136 / 172

MegaLife ARV OUTDOOR UNIT
–
ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual
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2. The connection between PCB and
step motor failure.
A8
Indoor unit ERRPROM module failure
1. Indoor unit PCB is broken
2. Error module is broken
AC
More than 2 indoor units
’ central control
system address repeated
The central control address setting
incorrect
AE
Operation mode conflict The operation mode setting incorrect
AH
Two or more indoor unit refrigerant system
address repeated
System address setting incorrect
AJ Indoor unit total capacity exceeded Stop some indoor units
AF The EXV leakage
1. EXV is blocked
2. Evaporator inlet sensor failure.
3.
Indoor unit’s temp. sensor failure
A0 The EXV open failure
2. ODU Error code table (No.65)
2.1 Communication failure (4)
Code
Definition Possible reason for error code
J1
Communication failure between
outdoor units
1. The communication wire between
outdoor units is disconnect, short circuit or
incorrect
2. Outdoor unit
’s main PCB failure
3.
Outdoor unit’s main power failed
J2
Communication failure between 1. The communication wire between