Service manual

AUX air conditioner service manual
197
12. Faults display of 18000BTU~24000BTU wall unit series air-conditioner：
Non-digital tube displays:
Fault source Display mode The display
precedence level
Appearance
PG motor feedback is
abnormal
Timing light twinkles 1
time in every 8 seconds
2 System turns off
Plastic temp. sensor is
abnormal
Timing light twinkles 2
times in every 8 seconds
3 System turns off
Copper temp. sensor
is abnormal (outdoor)
Timing light twinkles 8
times in every 8 seconds
4 System doesn’t
turn off
Digital tube displays:
Fault source Display mode The display
precedence level
Appearance
PG motor feedback is
abnormal
“E1” 2 System turns off
Plastic temp. sensor is
abnormal
“E3” 3 System turns off
Copper temp. sensor
is abnormal (outdoor)
“E2”
4 System doesn’t
turn off