Remote Control Reset• When the batteries are inserted for the first time or thebatteries are replaced, you may notice the indications atremote control’s display screen blink continuously andnot functionable. If this condition happens, try to resetthe remote control by pushing the reset terminal with apointing device.• You may also do the reset to erase the setting at remotecontrol and restore back the default setting.12.3. Remote ControlSetting Remote Control Transmission Code• There are 4 types of remote control transmission code could be selected. The indoor unit will only operate when receivedsignal with same transmission code from remote control. This could prevent signal interference when there are 2 or moreindoor unit installed nearby together.• To change remote control transmission code, short or open jumpers at the remote control printed circuit board.• Under various setting mode, after select the transmission code combination of remote control, press “Timer Decrement”button of remote control for 5 seconds to transmit a signal to indoor unit. The transmission code will be stored in EEPROM.• After signal is received, the various setting mode is cancelled and return to normal operation.67CS-E15DTEW CU-E15DBE / CS-E18DTEW CU-E18DBE / CS-E21DTES CU-E21DBE