mundoclima MUCOR-48-H9T Manuel D'installation Et L'utilisauter page 63

Table 6-2 Outdoor unit error codes
Nº Code
1 E1 Communication malfunction beetwen indoor and outdoor units
2 F0 Current overload protection
3 F1 Outdoor room temperature sensor (T4) open circuit or short circuit
4 F2 Outdoor coil temperature sensor (T3) open circuit or short circuit
5 F3 Outdoor discharge temperature sensor (T5) open circuit or short circuit
6 F4 Outdoor EEPROM error
7 F5 Outdoor fan speed malfunction
8 P0 Inverter module IPM protection
9 P1 High/Low voltage protection
10 P3 Outdoor low temperature protection
11 P4 Rotor position protection of compressor
12 P7 Sensor of outdoor IGBT is faulty
13 J0 High temperature position of indoor heat exchanger in heating mode
14 J1 High temperature position of indoor heat exchanger in cooling mode
15 J2 High discharge temperature protection
16 J3 PFC module protection
17 J4 Communication error between outdoor main chip and compressor driven chip IR341
18 J5 High pressure protection
19 J6 Low pressure protection
20 J8 AC voltage protection
In low ambient cooling mode, the LED displays"LC" or alternative displays between running frequency and "LC"
(each displays 0.5s)
Table 6-3
Symptoms
Unit does not start
Air flowing normally but
completely can't cooling
Units start or stop frequently
Low cooling effect
Low heating effect
Description
Causes
Power failure.
Power switch is off.
Fuse of power switch may have burned.
Batteries of remote controller exhausted
or other problem of controller.
Temperature is not set correctly.
Be in 3 minutes protection
compressor.
Refrigerant is too little or too much.
Air or no concretingc gas in the
refrigerating circuit.
Compressor is malfunction.
Voltage is too high or too low.
System circuit is blocked.
Outdoor unit and indoor unit heat
exchanger is dirty.
The air filter is dirty.
Inlet/outlet of indoor/outdoor units is
blocked.
Doors and windows are open
Sunlight directly shine.
Too much heat resource.
Outdoor temp. is too high.
Leakage of refrigerant or lack of
refrigerant.
Outdoor temperature is lower than 7 C
Doors and windows not completely
closed.
Leakage of refrigerant or
refrigerant.
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Solution
Wait for the comeback of power.
Switch on the power.
ReplLocation:
Replace the batterises or check the
controller.
Set the temperature properly.
of Wait.
Check leakage, and rightly recharge
refrigerant.
Vacuum and recharge refrigerant.
Maintenance or change compressor.
Install manostat.
Find reasons and solution.
Clean the heat exchanger.
Clean the air filter.
Eliminate all dirties and make air
smooth.
Close doors and windows.
Make curtains in order to shelter from
sunshine.
Reduce heat source.
AC cooling capacity reduces (normal).
Check leakage and rightly recharge
refrigerant.
Use heating device.
Close doors and windows.
Check leakage and rightly recharge
lack of refrigerant.