Contents Of Troubleshooting - Mitsubishi Heavy Industries FDU45KXE6F-W Technical Manual

10.2 Contents of troubleshooting

(1) List of inspection displays
Remote
7-segment
control
display
error code
None
None
None
None
None
None
None
WAIT
WAIT
WAIT
[No display]
E1
E2
E3
E5
E6
E7
E9
E10
E11
E12
E16
E19
E20
E28
E63 E63
Name of inspection
Operates but does not cool
Operates but does not heat
Excessive noise/vibration (1/3)
Excessive noise/vibration (2/3)
Excessive noise/vibration (3/3)
Power source system anomaly (Power source to indoor unit PCB) Wrong connection
Power source system anomaly (Power source to reomote control) Wire breakage/short-
/Searching IU (1)
WAIT
(2)
WAIT
(3)
WAIT
[No display]
Remote control communication error
Duplicated indoor unit address
Outdoor unit signal line error
Communication error during operation
Indoor unit heat exchanger temperature sensor anomaly (Thi-R)
Indoor return air temperature sensor anomaly (Thi-A)
Drain trouble
Excessive number of indoor units (more than 17 units) by
controlling one remote control
Address setting error between master and slave indoor units
Address setting error by mixed setting method
Indoor DC fan motor anomaly
Indoor unit operation check, drain pump motor check mode
anomaly
Indoor DC fan motor rotation speed anomaly
Remote control temperature sensor anomaly (Thc)
Emergency stop
-
128
-
'21 • KX-T-386
Classification Page
System error 129
System error 130
Improper installation
131
work
Unit error 132
Unit error 133
134·135
136·137
circuit
System error 138
System error 139
System error 140
System error 141
Communication error 142
Address setting error 143
Address pairing setting
144
error
Communication error 145
Sensor wire breakage 146
Sensor wire breakage 147
System error 148
Communication error 149
Address setting error 150
Address setting error 151
DC fan motor error 152
Setting error 153
DC fan motor error 154
Sensor wire breakage 155
Site setting error 156