Troubleshooting - Pioneer YN018GMFI16M2D Service Manual

9. Troubleshooting

9.1 Indoor unit error code explanation:
Wall Mounted Indoor Units:
Display digital tube
E0
E1
E2
E3
E5
E6
P0
P1
P2
P3
P4
P5
Floor Console Models:
Operation Timer
★
X
X
★
★
★
★
★
★
★
LED STATUS
Indoor EEPROM malfunction
Indoor/ outdoor units communication error
Zero-crossing signal error
Indoor fan speed has been out of control
Open circuit or short circuit of outdoor temperature sensor or outdoor
EEPROM malfunction
Open circuit or short circuit of T1 or T2 temperature sensor
IPM module protection or IGBT over-strong current protection
Voltage protection
Temperature protection of compressor top
Outdoor temp. too low protection(Optional for some models)
Inverter compressor drive protection
Mode conflict
De-frost
X X
X ★
★
X
★
X
X ★
★ ★
X
X
◎
X
★
★ flash at 5Hz, light, X extinguished,
LED STATUS
Open or short circuit of T1 temperature sensor
Open or short circuit of T2 temperature sensor
Indoor / outdoor units communication error
Indoor EEPROM malfunction
IPM module protection
Open or short circuit of T3 or T4 temperature sensor
Temperature protection of compressor top
Inverter compressor drive protection
Mode conflict
Indoor fan speed has been out of control
flash at 0.5Hz.
◎
ODU Error
code
——
——
——
——
E0,E1,E2,
E3,E4,E6
——
P4
E5
P0,P1,P2
——
E7, P7
——