Service manual

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9. PCB function:
NOTE: Ts is the set temperature, Tr is indoor room temperature, TP1 is indoor coil pipe temperature, TP2 is outdoor
coil pipe temperature.
Display panel
[1]only two LED
①running lamp(green)：power on light, flash one time/ one second during anti cooled wind.
②timer lamp(yellow)：only light at timer state.
[2]eleven LED
① running lamp(green)：power on light, flash one time/ one second during anti cooled wind.
②temperature lamp(green)：16～31℃ set temp. and room temp. display, light is set temp. flash is set temp.
[3]two LED and two 8LED
① running lamp(green)：power on light, flash one time/ one second during anti cooled wind.
② timer lamp(yellow)：only light at timer state.
③8LED display set temp., also it can display timer time and failure code.
[4]LED multi-colour panel
①according to display mode: dehumidification, cooling, ventilation, heating, auto, sleep, fan speed, swing, timer, indoor
fan running.
running
timer