Cooling Overload Operation - Mitsubishi Heavy Industries FDTC50ZHXV Technical Manual

Error code
Remote controller: E35
1. Applicable model
Model SRC40 – 60
2. Error detection method
Anomalous stop
Reset
36 40
Outdoor unit heat exchanger temp. (°C)
3. Condition of Error displayed
When anomalous outdoor heat
exchanger temperature occurs
5 times within 60 minutes
or 40°C or higher continues
for 10 minutes, including the
compressor stop.
4. Presumable cause
• Defective outdoor heat
exchanger temperature
thermistor
• Defective outdoor control
PCB
• Indoor, outdoor unit
installation spaces
• Short-circuit of air on indoor,
outdoor units
• Fouling, clogging of heat
exchanger
• Excessive refrigerant quantity
Note:
LED Green Red
Keeps flashing Stays Off
Indoor
–
8 times flash
Outdoor
5. Troubleshooting
Are normal
the characteristics of
outdoor unit heat exchanger
temperature thermistor
normal?
Is the
unit operating in
the state of cooling
overload?
Is the high
pressure control
normal
the temperature
(measured actually) at
direction of error
correct?
* For the contents of control, refer to the protective control by controlling
compressor rotation speed and cooling high pressure protective control of
micro computer control function for corresponding models.
299
–
Content

Cooling overload operation

(Model SRC40 - 60 only)
Diagnosis
* For the characteristics of outdoor
unit heat exchanger temperature
thermistor, refer to E37.
NO
YES
YES
NO
NO
YES
Is
NO
YES
–
Countermeasure
Replace outdoor heat
exchanger temperature
thermistor.
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 heater
exchanger?
Control operation check*
Defective outdoor control
PCB  Replace.
Excessive refrigerant
amount: Recharge
refrigerant by weighing
proper amount on a scale.