CoolMaster LCD FAQ

Below is an example of information that can be reflected on CoolMaster LCD.

In this example VRV system has 3 indoor units with external addresses 1.01, 1.02 and 1.03. You can gather following information looking at the CoolMaster LCD.

Unit ON/OFF Set Temperature Fan Speed Mode Failure Code
1.01 OFF (-) 18° High Cool U4
1.02 ON (+) 20° Low Fan No (OK)
1.03 OFF (-) 18° High    

The strange string U03 G03 A3 U4 means that there are 3 indoor units – U03 and 3 indoor units with preset external address – G03. Failure codes A3 and U4 were detected in system.


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