V6 VRF 50Hz
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Part 6 - Diagnosis and Troubleshooting
2.18 yHd: Slave unit malfunction
Digital display output 2.18.1
In the error code, 'y' is a placeholder for the address (1, 2 or 3) of the slave unit with the error.
Description 2.18.2
1Hd indicates an error on the slave unit with address 1.
2Hd indicates an error on the slave unit with address 2.
3Hd indicates an error on the slave unit with address 3.
All units stop running.
Error code is only displayed on the master unit.
Trigger / recover condition 2.18.3
Trigger condition: Slave unit is malfunction.
Recover condition: Slave unit goes back to normal.
Reset method: Resume automatically.
Possible causes 2.18.4
Slave unit malfunction.