Troubleshooting guide

39
Ceiling Cassette A / B / C Series Model
Model Board Handset
CK 20/25/30/40/50A/AR U1.5
CK 15/20/25B/BR U1.5
CK 10/15/20C/CR U1.5
LED Indicator Light Display - Cooling
LED Indicator Light Display – Heating
LED Light Diagnostic Table
Operation / Faulty Indication
Cooling mode
Timer On
Sleep mode On
Heating mode
Frost prevention mode
Compressor overload protection
Pump fault
Gas leak
Room / indoor / outdoor coil sensor contact
loose / short
SLEEP
TIMER
POWER
TIMER
POWER
HEAT
/
ON
ON or OFF
BLINKING
/
Once every 3 sec
3 times every 3 sec
Twice every 3 sec
Continuously
4 times every 3 sec
G7 / SLM3 / Netware 3
G7 / SLM3 / Netware 3
G7 / SLM3 / Netware 3