Mitsubishi Electric AE-200A Service Handbook page 53

[V Troubleshooting]
Error and
preliminary
error codes
Other communication errors
6820
Other communication errors - Transmission line
6821
busy
Other communication errors - No communication
6822
ACK
Other communication errors - No response
6823
command
Other communication errors - Receive data error
6824
Communication error - MA communication
6830
refrigerant address double setting error
Communication error - No MA communication
6831
reception error
Communication error - MA communication
6832
synchronism not recover
Communication error - MA communication
6833
transmission/reception hardware trouble
Communication error - MA communication start bit
6834
detection error
Communication error - A control no indoor/outdoor
6840
communication/reception abnormality
Communication error - A control indoor/outdoor
communication synchronization recovery
6841
abnormal
Communication error - A control indoor/outdoor
communication incorrect indoor/outdoor wiring
6844
connection, excessive number of indoor units
(more than five units)
Communication error - A control indoor/outdoor
communication incorrect indoor/outdoor wiring
6845
connection
(telecommunication, disconnection)
Communication error - A control indoor/outdoor
6846
communication startup time exceeded
Communication error - No response
6920
Communication error – Receiving frame ID error
6922
System abnormality
7000
System abnormality - Total capacity error
7100
System abnormality - Capacity code error
7101
System abnormality - Connecting unit number
7102
excess
System abnormality - Piping length setting error
7103
System abnormality - Floor height setting error
7104
○ For the error codes and preliminary error codes used with each air-conditioning unit, refer to the service
NOTE:
handbook for the corresponding air-conditioning unit.
○ The unit error and communication error history can be displayed on the AE-200/AE-50/EW-50 unit LCD and in
a Web browser. The preliminary error history can be monitored with the service LEDs or by connecting
Maintenance Tool to the AE-200/AE-50/EW-50 via the LAN.
Description
Error and
preliminary
error codes
7105 System abnormality - Address setting over 254
7106 System abnormality - Attribute setting error
7107 System abnormality - Distributor setting error
7108 System abnormality - Refrigerant system setting
error
7109 System abnormality - Connection setting error
7110 System abnormality - Refrigerant system
connection/connection data unsettled
System abnormality - I/O connection equipment
7111 not connected/remote controller sensor
abnormality
7112 System abnormality - I/O type setting error
7113 System abnormality - Equipment unsettled
7116 System abnormality - Replace non-wash setting
error
System abnormality - Model identification setting
7117
error
7130 System abnormality - Different unit model error
7131 System abnormality - Mixed cooling only H/P
connection error
(Facility PAC)
7132 System abnormality - Multiple entries of operation
performance
(Facility PAC)
7200 System abnormality - Numeric values unsettled
7201 System abnormality - Numeric values unsettled
73** System abnormality - LON system equipment
abnormality
7901 Maximum connectable No. of units exceeded
7902 Connection lock error
7903 Unit information error
7904 System setting error
7905 Version error
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Description