Samsung AVXCSH023/032/040CE Service Manual page 123

Compressor pre-heating –
1. When tracking is completed, check compressor temperature before moving onto the system operation to determine if it is ready
to operate.
2. If it has all conditions to operate the compressor, the flashing light of the CH will disappear and the left display part will show the
address of the indoor units subject to the outdoor unit's communication attempt while the right one shows the address of the
indoor units that have responded to the communication.
3. When it is not suitable to immediately operate the compressor, the display part flickers CH and heats the compressor with
CCH (Crank Case Heater) for 2 hours and 30 minutes.
4. Whether or not it is at a suitable temperature to operate is determined once after turning on the power. However, for the first time
of carrying out the test operation after installation please input the power six hours before test operation.
Samsung Electronics
display
Troubleshooting
4-39