McQuay MWM Service Manual Book page 42

Ceiling Exposed D Series Model
Model
CE 20/25/30/40/50D/DR
LED Indicator Light Display - Cooling
COOL
LED Indicator Light Display – Heating
COOL
LED Light Diagnostic Table
ON
Board
U1.5 G7 / SLM3 / Netware 3
DRY FAN
DRY FAN
/ ON or OFF
Handset
HEAT
Operation / Faulty Indication
Cooling mode
Dry mode
Fan mode
Heating mode
Auto mode in cooling operation
Auto mode in heating operation
Defrost mode
Compressor overload protection
Gas leak
Outdoor coil sensor contact open / short
Indoor coil sensor contact open / short
Room air sensor contact loose / short
BLINKING
41