Troubleshooting; Display Board - koppel KV24 ODU-ARF21C Service Manual

Troubleshooting

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 (Duct)
Temporary button
2.1.3 Auto-lifting panel of 4 way cassette
2.1.4 Display board of Ceiling-floor indoor unit
100
PRE-DEF indicator(cooling and heating type)
or fan only indicator(cooling only type)
Timer indicator
Operation lamp
OPERATION TIMER DEF./FAN ALARM
MANUAL
Alarm indicator
Infrared signal receiver
Display digital tube
Electrical Control System