Mitsubishi SRK100VNXWPZSX, Service Manual

Page: 111 / 202

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110
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'20 • PAC-SM-351
Error code
Remote control:
LED Green Red
Outdoor control PCB
Outdoor inverter
PCB
1-time flash Keeps flashing
Indoor control PCB Stays OFF Keeps flashing
Content
Keeps flashing
Yellow LED
E35
1. Applicable model
5. Troubleshooting
Diagnosis Countermeasure
Are the
characteristics of
outdoor heat exchanger
temperature sensor
normal?
Is
the temperature
(measured actually) at
detection of error
correct?
NO
YES
YES
* For the contents of control, refer to cooling high pressure protective control
in the protective control by controlling compressor rotation speed of
microcomputer control function for corresponding models.
Is the
unit operating in the
state of cooling
overload?
Is the high
pressure control
normal?
YES
NO
* For the characteristics of outdoor
heat exchanger temperature sensor,
refer to E37.
YES
NO
NO
Replace outdoor heat
exchanger temperature
sensor.
Check unit side.
• Isn’t the air circulation
of outdoor unit short-
circuited?
• Are installation spaces
adequate?
• Isn’t there any fouling
or clogging on heat
exchanger?
Control opera tion check *
Defective outdoor
unit control PCB
➞
Replace.
Excessive refrigerant
amount : Recharge
refrigerant by weighing
proper amount on a scale.
2. Error detection method
For the error detection method,
refer to the protective control by
controlling compressor rotation
speed and cooling high pressure
protective control of micro-
computer control function for
corresponding models.
3. Condition of error displayed
When outdoor heat exchanger
temperature anomaly is detected
5 times within 60 minutes or
this anomalous state is detected
60 minutes continuously
including compressor stop.
4. Presumable cause
• Defective outdoor heat
exchanger temperature sensor
• Defective outdoor unit control
PCB
• Indoor, outdoor unit
installation spaces
• Short-circuit of air on indoor,
outdoor units
• Fouling, clogging of heat
exchanger
• Excessive refrigerant amount
Note:
Cooling overload operation