McQuay M4LC Service Guide Book

49
Ceiling Convertible E Series Inverter Model
Model Board Handset
CEX 15/20/25E/ER VA3.0
LED Indicator Light Display - Cooling
LED Indicator Light Display – Heating
LED Light Diagnostic Table
Operation / Faulty Indication
Cooling mode
Dry mode
Fan mode
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
FAN
DRY
COOL
HEAT
FAN
DRY
COOL
/
ON
ON or OFF
BLINKING
1 time
2 times
3 times
4 times
5 times
6 times
G11

McQuay M4LC Specifications

General

Brand	McQuay
Model	M4LC
Category	Air Conditioner
Language	English