Fisher FS2MIF-140AE2, Service Manual

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31
9. Troubleshooting
9.1
Indoor unit error code explanation:
PROFESSIONAL HEAT R series:
Display Operation lamp flash times Timer lamp Failure
E0 1 X Indoor EEPROM malfunction
E1 2 X Indoor / outdoor units communication error
E3 4 X Indoor fan speed has been out of control
E4 5 X Open or short circuit of T1 temperature sensor
E5 6 X Open or short circuit of T2 temperature sensor
F1 2 O Open or short circuit of T4 temperature sensor
F2 3 O Open or short circuit of T3 temperature sensor
F3 4 O Open or short circuit of T5 temperature sensor
F4 5 O Outdoor EEPROM parameter error
F5 6 O Outdoor fan speed out of control
F6 7 O Open or short circuit of T2B temperature sensor
P0 1
☆
IPM module protection
P1 2
☆
Voltage protection
P4 5
☆
Inverter compressor drive protection
P5 6
☆
Mode conflict
P6 7
☆
Low pressure protection(Just matching with
FS4MIF-360AE2)
O
（
light
）
X
（
off
） ☆ （
flash
）
Light Commercial series(Except Console)
NO. MALFUNCTION RUN Timer DEF Alarm
DISPLAY
DIGITAL TUBE
1
Open or short circuit of T1 temperature sensor ☆ X X X
E0
2
Open or short circuit of T2 temperature sensor X X ☆ X
E1
3
Indoor / outdoor units communication error X
☆
X X
E2
4 Full-water malfunction X X X
☆
E3
5
Indoor EEPROM malfunction
☆ ☆
X X
E4
6
IPM module protection
☆
X X O
E5
7
Open or short circuit of T3 or T4 temperature sensor or
Outdoor EEPROM malfunction
☆
O X X E6
8
Outdoor fan speed has been out of control
☆
O
☆
X
E7
9
Indoor fan speed has been out of control
☆
O O X
F5
10
Voltage protection
☆
O X O
P0
12
Outdoor unit over-current protection
☆ ☆ ☆
X
P2
13
Inverter compressor drive protection
☆ ◎
X X
P4
14
Mode conflict
☆
X O O
P5
☆
Flash(at 2.5Hz) ◎ Flash(at 0.5Hz) O light X
（
off
）
Note: Digital display is only available for A5 duct type.