Service manual

60 Service Manual SM-MDS_(i)

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

6.0 Troubleshooting

Blinking

LED

Error

code

Error

code