60 Service Manual SM-MDS_(ii)
6.1 Locating Error Code
Error code will show on both indoor and outdoor units when the system malfunctions. For decorative type indoor
such as wall mounted, ceiling cassette and ceiling convertible, the error code will display via the blinking of the
LED. For units that are connected to the wired controller MC301 (such as ceiling concealed), the error code will
display on controller screen. For outdoor unit, the error code generated will display on the 7 segments display on
outdoor PCB. Each of these locations is indicated as below:
Error code display
for decorative indoor
Remark: Ionizer LED does not contribute to error code blinking.
Error code display
for wired handset
Error code display
for outdoor unit
Remark: For error code of phase protector (only applicable to 3 phase model), kindly refer to Appendix 7.16.
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