Heat Controller B-DVC09SD-0 - Troubleshooting and Error Codes; Indoor Unit Error Codes

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Heat Controller DVC/DVH Inverter Mini-Split
25
10. Troubleshooting
10.1 Indoor Unit Error Codes
KEY: ☆ = Flashing Light X = Light is Off O= Solid Light is On
Operation Timer Display Error:
☆ 1 time
X E0 Indoor unit EEPROM parameter error
☆ 2 times
X E1
Communication Error between indoor and outdoor
unit
☆ 3 times
X E2
Zero-crossing signal detection error
☆ 4 times
X E3 Indoor fan speed is out of control
☆ 5 times
X E4
T1 Indoor room temperature sensor has an open
or short circuit
☆ 6 times
X E5
T2 Evaporator coil temperature sensor has an
open or short circuit
☆ 7 times
X EC Refrigerant leakage detection error
☆ 2 times
O F1
T4 Outdoor temperature sensor has an open or
short circuit
☆ 3 times
O F2
T3 Condenser coil temperature sensor has an
open or short circuit
☆ 4 times
O F3
T5 Compressor discharge temperature sensor
has an open or short circuit
☆ 5 times
O F4 Outdoor unit EEPROM parameter error
☆ 1 times ☆
P0
IPM malfunction or IGBT over-
strong current
protection error
☆ 2 times ☆
P1 Over voltage or over low voltage protection error
☆ 3 times ☆
P2 High temperature protection of compressor top
☆ 5 times
☆
P4 Inverter compressor drive error