P2 Malfunction - Mitsubishi Electric R410A Technical Manual

R410A Tropical Split Type Technical Manual

11.4 P2 malfunction

LED indicate P2
Under cooling mode, T2 is on low
temperature protection
Judge 1: Check whether the evaporator temperature
sensor T2 is break off.
Judge 2: Whether the evaporator temperature sensor
is malfunction.
Validate: Check whether the resistance of the
temperature sensor is correct according to Annex 1.
Judge 3: Check whether the outdoor ambient
temperature is too low (less than 17℃)
Replace indoor PCB
Floor-standing Type
Yes
No
No
Yes
Yes
No
Troubleshooting
Connects it well.
Replace the temperature sensor
Stop the unit.
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