ESIE16-02B | Part 5. Appendix 5.1. Field settingRA R32 Split & multi split M-Series4/04/17 | Version 1.1 Page 935.1. Field setting5.1.1. Indoor unit5.1.1.1. Indoor fan control during thermostat off in coolingModel: FTXM-M, ATXM-M (BMS) / Remote controller: ARC466A33Software logic change for thermostat OFF is for cooling operation (to increase SEER) (for main stream models FTXM/CTXM).Figure 5-1: How to change fan OFF to ON when in cooling thermo offModel FTX25/35KM does not have remote controller which has such service mode.Change fan on/off by remote controller (ARC480A11) in service mode.1. Normal operation on remote controller.2. Press "temperature (upper/lower) button" with "off button" in same timing (→ go to "SC" service mode).3. Press "temperature button" (→ "SC → A → 7 → SU" rotation = segment 1), select SU and press "fan button" as decision (→ number is displayed at the lower left).4. Press "temperature button" (→ 1~10), select 4 and press "fan button" as decision (→ number is displayed at the lower right).5. Press "temperature button" (→ 0~1), select 0 and press "fan button" as decision (0: fan ON, 1: fan OFF).5.1.1.2. Brightness setting of multi-coloured lamp of the indoor unit5.1.1.3. ON/OFF button on the indoor unit1. Shortly press ON/OFF button indoor: auto, 25°C, auto fanspeed. To de-activate: shortly press ON/OFF again.2. Press ON/OFF button indoor 5-9 seconds: forced operation mode = forced cooling. To de-activate: press again for 10 seconds.1. Press TEMP and MODE buttons simultaneously.2. SC is displayed on the screen.3. Select L (light) with TEMP buttons up or down.4. Press MODE button to enter brightness setting mode.5. Press TEMP up or down to adjust brightness to L (low), H (high) or OFF.6. Press MODE button again for 5 seconds to exit.TempTempTempMode SCModeMode001Mode1Select“SU”Select “4”FAN ONduring cooling thermo offFAN OFFduring cooling thermo offSelectDISPLAY NORMALAFTER 60 s