62• e-ion Check Modeo e-ion abnormality check modeo Purpose is to improve sensor serviceability when sensor is malfunction.(1) Control starting conditionWhen all of the conditions are formed Not in Patrol Demo mode. e-ion operation ON. When e-ion check mode signal is received; the procedure of selection is as shown:• Press “Set” button continuously for 15 seconds by using pointer to enter internal setting mode.• Press “Timer Decrement" button to select “CHC”.• Confirm setting by pressing “Timer Set” button, a “beep” sound will be heard.SETSETTransmit Patrol default OFF/ON code(Buzzer: OFF:Long Beep, ON:Short Beep)Press continously for 15sSETTransmit Patrol demo code(Buzzer: OFF:Long Beep, ON:Short Beep)SETTransmit ECO demo code(Buzzer: OFF:Long Beep, ON:Short Beep)SETTransmit check code(Buzzer:Short Beep)o If abnormal discharge is detected at filter (short-circuited) due to water or dust adhesion, etc., the e-ionindicator blinks immediately.