Carrier 38QUS012D8S - Page 110

Troubleshooting
Electrical Control System 108
2. Troubleshooting
2.1 Display board
2.1.1 Icon explanation on indoor display board (Super slim cassette).
2.1.2 Icon explanation on indoor display board (A6 Duct)
2.1.3 Auto-lifting panel of 4 way cassette
2.1.4 Display board of Ceiling-floor indoor unit
OPERATION
TIMER
DEF./FAN
ALARM
Temporary button
Operation lamp
Timer indicator
Infrared signal receiver
Alarm indicator
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
MANUAL
Display digital tube