Mitsubishi Heavy Industries SRK63ZR-S Technical Manual page 58

(c) Error code, stop code table
Number of flashes when in
service mode
Stop coad
RUN TIMER or
light light Error coad
(10's digit) (1's digit)
0
OFF
1-time
01
flash
OFF
5-time
05
flash
5-time
35
flash
6-time
36
flash
3-time 7-time
37
flash flash
8-time
38
flash
9-time
39
flash
40
OFF
2-time
42
flash
4-time
flash
7-time
47
flash
8-time
48
flash
1-time
51
flash
7-time
57
flash
5-time
8-time
flash
58
flash
9-time
59
flash
60
OFF
6-time
flash
1-time
61
flash
2-time
62
flash
80
OFF
2-time
82
flash
8-time
4-time
84
flash
flash
5-time
85
flash
6-time
86
flash
Error content
Normal
Error of wired remote control
Broken wired remote control wire,
wiring defective indoor PCB
Can not receive signals for 35 Power source is faulty.
seconds Power source cables and signal lines are improperly wired.
Indoor or outdoor PCB are faulty.
(if communications have recovered)
Cooling overload operation.
Cooling high pressure control
Outdoor unit fan speed drops.
Outdoor heat exchanger sensor is short circuit.
Refrigerant is insufficient.
Compressor overheat 115°C
Discharge pipe sensor is faulty.
Service valve is closed.
Outdoor heat exchanger sensor wire is
Outdoor heat exchanger sensor
disconnected.
is abnormal Connector connections are poor.
Outdoor PCB is faulty.
Outdoor air temperature sensor wire is
Outdoor air temperature sensor disconnected.
is abnormal Connector connections are poor.
Outdoor PCB is faulty.
Discharge pipe sensor wire is
Discharge pipe sensor is disconnected.
abnormal (anomalous stop) Connector connections are poor.
Outdoor PCB is faulty.
Service valve (gas side)
Service valve (gas side) closed
closed operation Outdoor PCB is faulty.
Compressor lock.
Compressor wiring short circuit.
Compressor output is open phase.
Current cut
Outdoor PCB is faulty.
Service valve is closed.
Electronic expansion valve is faulty.
Compressor is faulty.
Circuit error Defective circuit
Outdoor fan motor is faulty.
Outdoor unit's fan motor is
Connector connections are poor.
abnormal
Outdoor PCB is faulty.
Short circuit in the power
Outdoor PCB is faulty.
transistor (high side)
Power transistor is damaged.
Current cut circuit breakdown
Service valve is closed.
Refrigeration cycle system
Refrigerant is insufficient.
protective control
Refrigerant is overcharge.
Current safe
Compressor lock.
Overload operation.
Compressor wiring is disconnected.
Compressor wiring is unconnection
Power transistor is damaged.
oltage drop
Power source construction is defective.
V
Low speed protective control Outdoor PCB is faulty.
Compressor is faulty.
Compressor is faulty.
Compressor output is open phase.
Rotor lock
Electronic expansion valve is faulty.
Overload operation.
Outdoor PCB is faulty.
Connection lines between the
Connection lines are faulty.
indoor and outdoor units are
Indoor or outdoor PCB are faulty.
faulty
Indoor or outdoor PCB are faulty.
Serial transmission error
Noise is causing faulty operation.
Indoor fan motor is faulty.
Indoor unit's fan motor is
Connector connections are poor.
abnormal
Indoor PCB is faulty.
Indoor heat exchanger sensor wire is
Indoor heat exchanger sensor
disconnected.
is abnormal (anomalous stop)
Connector connections are poor.
High humidity condition.
Anti-condensation control
Humidity sensor is faulty.
Indoor unit fan speed drops.
Anti-frost control
Indoor heat exchanger sensor is broken wire.
Heating overload operation.
Indoor unit fan speed drops.
Heating high pressure control
Indoor heat exchanger sensor is short circuit.
Cause
The wired remote control wire Y is open. The wired remote
control wires X and Y are reversely connected. Noise is
penetrating the wired remote control lines. The wired
remote control or indoor PCB is faulty.
When 35 seconds passes without
communications signals from either the outdoor unit or
the indoor unit being detected correctly.
When the outdoor heat exchanger sensor's value exceeds
the set value.
When the discharge pipe sensor's value exceeds the set
value.
–55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous temperature.
Or–55°C lower is detected for 5 seconds continuously
within 20 seconds after power ON.
–55°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous temperature.
Or–55°C lower is detected for 5 seconds continuously
within 20 seconds after power ON.
–25°C or lower is detected for 5 seconds continuously 3 times
within 40 minutes after intial detection of this anomalous
temperature.
If the inverter output current value exceeds the setting value
within 80 seconds after the compressor ON in the heating
mode, the compressor stops.
Compressor start fails 42 times in succession and the
reason for the final failure is current cut.
When L1 cable or L2 cable disconnect.
When the outdoor PCB is faulty.
When a fan speed of 75 min
seconds or longer.
When it is judged that the power transistor was
damaged at the time the compressor started.
When refrigeration cycle system protective control
operates.
When there is a current safe stop during operation.
When the current is 1A or less at the time the
compressor started.
When the power source voltage drops during operation.
When the compressor command speed is 1ower than 32
rps for 60 minutes.
After the compressor starts, when the compressor stops
due to rotor lock.
When 10 seconds passes after the power is turned on
without communications signals from the indoor or
outdoor unit being detected correctly.
When 7 minute 35 seconds passes without
communications signals from either the outdoor unit or
the indoor unit being detected correctly.
When the indoor unit's fan motor is detected to be running
at 300 min
-1
condition while the air-conditioner is running.
When a temperature of –28°C or lower is sensed
continuously for 40 minutes during heating operation.
(the compressor stops).
Anti-condensation prevention control is operating.
When the anti-frost control operates and the compressor
stops during cooling operation.
When high pressure control operates during heating
operation and the compressor stops.

- -
'15 • SRK-T-175
Occurrence conditions
or lower continues for 30
-1
or lower speed with the fan motor in the ON
Error Auto
display recovery
(5 times)
(2 times)
(3 times)
(3 times)
(3 times)
(2 times)
(2 times)
(3 times)
(3 times)
(2 times)