Table of Contents
Advertisement
1. Switch OFF main power supply.
2. Short circuit between JW001 and JW002.
3. Switch ON main power supply – LD301 will blink 1 time.
4. (Within 3 minutes) Press Test/Service Switch for 1 second or more.
5. Self-diagnosis result will be shown – LD303 will ON (LIT) and LD301 will be blinking. Then refer to diagnosis
table 2.
6. Switch OFF main power supply. Then release back JW001 and JW002 to original condition (no short
circuit condition).
* If step No. 6 is not carried out, the system will not operate properly until 3 minutes has lapsed after
restore the power supply.
In case of service person forgot to release JW001 and JW002 to original condition;
Case 1:
If main power supply continuously ON, outdoor microcomputer will keep showing diagnosis result (LD303 will
ON and LD301 will blinks).
Case 2:
If main power supply OFF at once, then switch ON again:
a) Outdoor microcomputer will wait the self check command (by pressing test/service switch) (LD301 blinks 1
time) and unit not running.
Case 3:
If main power supply OFF at once, then switch ON again and on indoor unit by remote control;
a) Indoor unit LD201 will blinks 4 times, outdoor unit LD301 blinks 1 time, and unit not running.
– 117 –
Advertisement
Table of Contents
