York YU2E14YEEBMHO-X, Service Manual

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10. Troubleshooting
10.1
Indoor unit error code explanation:
Malfunction
Error Code
Timer Lamp
Operation Lamp
(flashes)
Indoor EEPROM malfunction E0 X 1
Communication malfunction between indoor and outdoor units E1 X 2
Indoor fan speed has been out of control E3 X 4
Open or short circuit of T1 temperature sensor E4 X 5
Open or short circuit of T2 temperature sensor E5 X 6
Water level alarm EE X 8
Overcurrent protection (For some units) F0 O 1
Open or short circuit of T4 temperature sensor F1 O 2
Open or short circuit of T3 temperature sensor F2 O 3
Open or short circuit of T5 temperature sensor F3 O 4
Outdoor EEPROM malfunction (For some units) F4 O 5
Outdoor fan speed is out of control F5 O 6
Open or short circuit of T2B temperature sensor (For free-match indoor
units)
F6 O 7
Communication error between auto-lifting panel and slim cassette (For
slim cassette with auto-lifting panel)
F7
O 8
Auto-lifting panel is faulty (For slim cassette with auto-lifting panel)
F8
O 9
Auto-lifting panel is not closed (For slim cassette with auto-lifting panel)
F9
O 10
IPM module malfunction P0
☆
1
Over voltage or over low voltage protection P1
☆
2
Too low ambient temperature protection P3
☆
4
Error rotor position protection of compressor P4
☆
5
Mode conflict
P5( for
Premier
&Oasis
models)
--(for other
models)
☆
6
Low pressure protection of compressor P6
☆
7
O (on) X(off)
☆
(flash at 2Hz)
10.2
Outdoor unit error code explanation:
Display LED STATUS
E0 Outdoor EEPROM malfunction
E2 Indoor / outdoor units communication error
E3 Communication malfunction between IPM board and outdoor main board
E4 Open or short circuit of outdoor unit temperature sensor
E5 Voltage protection
E8 Outdoor fan speed has been out of control