V6 VRF 50Hz
88
Midea V6 Series Service Manual
2.10 xF1: DC bus voltage error
Digital display output 2.10.1
'x' is a placeholder for the compressor system (compressor and related electrical components), with 1 representing
compressor system A and 2 representing compressor system B.
Description 2.10.2
1F1 indicates compressor A DC bus voltage error; 2F1 indicates compressor B DC bus voltage error.
All units stop running.
Error code is only displayed on the unit with the error.
Trigger / recover condition 2.10.3
Trigger condition: DC bus voltage < 350V or DC bus voltage > 700V continuously for 10 seconds.
Recover condition: DC bus voltage goes back to normal.
Reset method: Restart automatically.
Possible causes 2.10.4
Loosened wiring of the compressor inverter module.
Incorrect wiring of the reactor and DC bus wire.
Abnormal power supply.
Inverter module damaged.