Toyotomi CCT 140IUINV Service Manual page 72

2.2 Indoor unit malfunction
For floor standing:
Codes
P0 Evaporator low temp. protection
Ed Outdoor unit malfunction
E1 Indoor / outdoor units communication error
E2 Open or short circuit of T1 temperature sensor
E3 Open or short circuit of T2 temperature sensor
E4 Open or short circuit of T2B temperature sensor
E7 EEPROM chip malfunction
E8 Indoor fan speed is out of control
For the others tyoes:
NO. Malfunction
Communication malfunction between indoor
1
and outdoor units.
Open or short circuit of T1 temperature
2
sensor
Open or short circuit of T2 temperature
3
sensor
Open or short circuit of T2B temperature
4
sensor
5 Full-water malfunction
6 Indoor EEPROM malfunction
7 Refrigerant Leakage Detection
8 Outdoor unit malfunction
9 Indoor fan speed is out of control
Communication malfunction between main
10
PCB and up-down panel PCB
11 Up-down panel malfunction
12 Up-down panel is not closed
Communication malfunction between master
13
unit and slave unit
Other malfunction of master unit or slave unit
14
Notes: Digital display is only available for super-slim 4-way cassette & duct type.
Electrical Control System
Defrosting
lamp
X
X
X
X
X
☆
☆
X
☆
☆
☆
☆
X
X
O (on) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)
F0,F1,F2 are only available for super-slim 4-way cassette
Contents
Alarm
Running lamp
lamp
X X
X
☆
X
☆
X
☆
X
☆
X X
O
☆
◎ X
☆ X
☆ ☆
X
☆
X
☆
☆ X
☆ ☆
Troubleshooting
Timer Display(digital
lamp tube)
E1
☆
X E2
X E3
X E4
X EE
X E7
X EC
X Ed
X E8
X F0
F1
☆
O F2
☆ F3
X F4
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