6 720 862 442 (2016/04) MDCI Series – All DC Inverter Outdoor Units (Three phase)
6 | ERROR CODES
• During operation, the fan motor in the outdoor unit may stop running
under high temperatures.
• When one unit is selected in fan mode and others are heating, the fan
may stop to prevent hot air being moved around.
4.7 Defrost in the heating operation
• During heating operation, frost can accumulate on the outdoor unit.
To increase efficiency, the unit will start defrosting for approximately
2-10minutes depending on the amount of accumulated frost. The
frost will then thaw and drip away from the unit.
• During defrosting, outdoor unit and indoor unit fans will periodically
stop.
5. ERROR CODES
Table 5-1
No. Failure of Protection Type Recovery Mode Fault Code
1 COMM.Fault between DSP and chip Recoverable H0
2 COMM.Fault between communication chip and main chip Recoverable H1
3 P6 protection has been activated 3 times in 30 minutes Irrecoverable H4
4 P2 protection has been activated 3 times in 30 minutes Irrecoverable H5
5 The number of indoor units decreases Recoverable H7
6 Reserved Recoverable H8
7 M-HOME for the indoor and outdoor units do not match Irrecoverable HF
8 Reserved Recoverable E1
9 Communication fault between the outdoor and indoor units Recoverable E2
10 T3 & T4 temperature sensor fault Recoverable E4
11 Voltage protection fault or a lack of Phase B, Phase N Recoverable E5
12 DC fan motor fault Recoverable E6
13 Discharge temperature sensor fault Recoverable E7
14 A fan in the A region run for more than 5 minutes in heat mode Recoverable EA
15 E6 protection has been activated 2 times in 10 minutes Irrecoverable EB
16 Inverter compressure maximum temperature protection Recoverable P0
17 High pressure protection or exhaust temperature switch protection Recoverable P1
18 Low pressure protection Recoverable P2
19 Outdoor input current protection Recoverable P3
20 Compressor discharge high protection Recoverable P4
21 Outdoor condenser high temperature protection Recoverable P5
22 Inverter module protection Recoverable P6
23 Strong wind protection Recoverable P8
24 Evaporator high temperature protection Recoverable PE
Display Function
1. When in stand-by, the LED display will show the amount of indoor units communicating with the outdoor unit.
2. When the unit is in operation, the LED display will show the frequency value of the compressor.
3. When the unit is in defrost, the LED will display ‘df’.
4. The power cord type designation is H07RN-F.
To Next Page
Loading...
