V4+R VRF 50/60Hz
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Part 5 - Diagnosis and Troubleshooting
4.13 yHd Troubleshooting
Digital display output 4.13.1
In the error code, 'x' is a placeholder for the address (1, 2 or 3) of the slave unit with the error.
Description 4.13.2
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.
Possible causes 4.13.3
Slave unit malfunction.