McQuay MWM Service Manual Book page 50

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