Rotenso J100Wi, Service Manual

Page: 93 / 132

LCAC R32 Series
93 Service manual
PART 6. TROUBLESHOOTING
1.4 Display board of ceiling&floor indoor unit
2. INDOOR UNIT MALFUNCTIONS
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 malfunction E3
X
4
T1 temperature sensor open or short circuit E4
X
5
T2 temperature sensor open or short circuit E5
X
6
Refrigerant leakage detection EC
X
7
Water level alarm malfunction EE
X
8
Communication error between master and slave unit (for twins system) E8
X
9
Another indoor unit malfunction (for twins system) E9
X
10
Outdoor unit is faulty (for old communication protocol) Ed
X
11
Overcurrent protection (for some units) F0
O
1
T4 temperature sensor open or short circuit F1
O
2
T3 temperature sensor open or short circuit F2
O
3
T5 temperature sensor open or short circuit F3
O
4
Outdoor EEPROM malfunction (for some units) F4
O
5
Outdoor fan speed malfunction F5
O
6
T2B temperature open or short circuit (for free-match indoor units) F6
O
7
Communication error between auto-lifting panel and slim cassette F7
O
8
Auto-lifting panel is faulty (for slim cassettes with an auto-lifting panel) F8
O
9
Auto-lifting panel is not closed (for slim cassettes with an auto-lifting panel) F9
O
10
IPM module malfunction P0 1
DC voltage too high/too low protection P1 2
Top of compressor high temperature protection P2 3
Low ambient temperature protection P3 4
Inverter compressor drive protection P4 5
Compressor low pressure protection P6 7
Outdoor IGBT sensor is faulty P7 8
O
(on);
X
(off); (flash at 2Hz)