McQuay MWM Service Manual Book page 49

Ceiling Cassette A/C Series Inverter Model
Model
CKX 20/25A/AR
CKX 10/15/20C/CR
LED Indicator Light Display - Cooling
POWER
LED Indicator Light Display – Heating
POWER
LED Light Diagnostic Table
1 time
2 times
3 times
4 times
5 times
6 times
ON
Board
VA3.0
VA3.0
TIMER SLEEP
TIMER HEAT
Operation / Faulty Indication
Cooling mode
Timer On
Sleep mode On
Heating mode
Defrost mode
Indoor temperature sensor loose / short
Outdoor temperature sensor loose / short
Communication error
Compressor overload protection
Pump fault
Compressor overheat / gas leak
Outdoor over current
IPM / PFC / Partial switching
/ ON or OFF
Handset
G11
G11
BLINKING
48