Midea VRF Series User Manual

V6R VRF 50/60Hz
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Part
6
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Diagnosis and Troubleshooting
2.18 yHd: Slave unit malfunction
Digital display output
In the error code, 'y' is a placeholder for the address (1, 2) of the slave unit with the error.
Description
 1Hd indicates an error on the slave unit with address 1.
 2Hd indicates an error on the slave unit with address 2.
 All units stop running.
 Error code is only displayed on the master unit.
Trigger / recover condition
 Trigger condition: Slave unit is malfunction.
 Recover condition: Slave unit goes back to normal.
 Reset method: Resume automatically.
Possible causes
 Slave unit malfunction.
Procedure
yHd
Check relevant slave unit

Midea VRF Series Specifications

General

Compressor Type	Inverter Scroll Compressor
Type	Variable Refrigerant Flow (VRF)
Refrigerant	R410A
Control	Centralized control, individual control
Indoor Unit Types	Wall mounted, cassette, ducted, floor standing
Energy Efficiency	High energy efficiency with DC inverter technology
Indoor Unit Noise Level	19 dB(A) to 45 dB(A)