Troubleshooting; Indoor Unit Error Codes - Heat Controller B-DVH09SD-0 Service Manual

Heat Controller

10. Troubleshooting

10.1 Indoor Unit Error Codes

KEY: ☆ = Flashing Light
Operation
☆ 1 time
☆ 2 times
☆ 3 times
☆ 4 times
☆ 5 times
☆ 6 times
☆ 7 times
☆ 2 times
☆ 3 times
☆ 4 times
☆ 5 times
☆ 1 times
☆ 2 times
☆ 3 times
☆ 5 times
X = Light is Off O= Solid Light is On
Timer Display Error:
X E0 Indoor unit EEPROM parameter error
Communication Error between indoor and outdoor
X E1
unit
X E2
Zero-crossing signal detection error
X E3 Indoor fan speed is out of control
T1 Indoor room temperature sensor has an open
X E4
or short circuit
T2 Evaporator coil temperature sensor has an
X E5
open or short circuit
X EC Refrigerant leakage detection error
T4 Outdoor temperature sensor has an open or
O F1
short circuit
T3 Condenser coil temperature sensor has an
O F2
open or short circuit
T5 Compressor discharge temperature sensor
O F3
has an open or short circuit
O F4 Outdoor unit EEPROM parameter error
IPM malfunction or IGBT over-strong current
P0
☆
protection error
P1 Over voltage or over low voltage protection error
☆
P2 High temperature protection of compressor top
☆
P4 Inverter compressor drive error
☆
27
DVC/DVH Inverter Mini-Split