Actuator Check

ACTUATOR CHECK

After entering the sensor check mode, press the R/F switch.

Since each damper, motor and relay automatically operates at 1 second intervals beginning in order from 20 in the temperature display, check the temperature and air flow visually and manually.

If a slower display is desired, press the DEF switch and change it to step operation. Every time the DEF switch is pressed, the display changes by 1 step.

HINT:

The buzzer sounds when the display trouble code changes.
Codes are displayed in order from the smaller to the larger numbers.

To cancel the check mode, press the OFF switch.

Fig 1: Identifying DEF Switch And R/F Switch

DATA LIST

Step No.	Display Code	Condition
Step No.	Display Code	Blower Motor	Air Flow Vent	Air Inlet Damper	Magnetic Clutch	Air Mix Damper	Rr. Heater Blower Motor
1	0	OFF	FACE	FRESH	OFF	Cool side (0% open)	OFF
2	1	LO	↑	↑	↑	↑	↑
3	2	MED	↑	R/F (50% open)	ON	↑	LO
4	3	↑	BI-LEVEL	RECIRC	↑	Cool/Hot (50% open)	↑
5	4	↑	FOOT	FRESH	↑	↑	↑
6	5	↑	↑	↑	↑	Hot side (100% open)	HI
7	6	↑	FOOT/DEF	↑	↑	↑	↑
8	7	HI	DEF	↑	↑	↑	↑