Troubleshooting guide

41
Ceiling Exposed D Series Model
Model Board Handset
CE 20/25/30/40/50D/DR U1.5
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
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
FAN
DRY
COOL
HEAT
FAN
DRY
COOL
/
ON
ON or OFF
BLINKING
G7 / SLM3 / Netware 3