Troubleshooting guide

McQuay Service Guide Book
46
7.0 Service Diagnosis
7.1 Self Diagnosis Table
Wall Mounted F Series Cooling Only Model
Model Board Handset
WM 010/015/020/025F, 311 D2.0 G7
LED Indicator Light Display
LED Light Diagnosis Table
Operation / Faulty Indication
Timer On
Sleep mode On
Dry mode
Defrost mode
Room air sensor contact loose / short
Indoor coil sensor contact loose / short
Gas leak
/
/
TIMER
SLEEP
POWER
DRY
Continuously
Once every 2 sec
3 times every 2 sec
Twice every 2 sec
/
ON
ON or OFF
BLINKING