Lennox REAL VPC H4-3P Series

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Troubleshooting
Digital Display Error Code Denition
E2 Communication error between indoor and main outdoor unit
E4 T3/T4/T5/TL/T71/T8 temperature sensor error
E5 Power voltage out of range
E7 Compressor discharge temp sensor error
E9 EEPROM error
F6 EEVA/EEVC error
C7 Inverter Module Temperature Protection
P1 High Pressure Protection
P3 Input current over load
P4 High compressor discharge temperature protection
P9 Fan motor error
PL High compressor module temperature protection
PP Low compressor discharge superheat protection
H0 Communication error between main control chip and inverter driver chip
H7 Quantity of indoor unit decreased
H8 High pressure sensor error
Hb Low pressure sensor error
L0 Compressor inverter module error (Compressor inverter module protection)
L1 Low voltage protection of DC bus (Compressor inverter module protection)
L2 Over voltage protection of DC bus (Compressor inverter module protection )
L4 Compressor Module Protection
A0 Emergency Stop