Troubleshooting R410A Tropical Split Type Technical Manual
Floor-standing Type
88
11.3 P1 malfunction
LED indicate P1
Under heating mode, T2 is on high
temperature protection
Judge 1: Check whether the evaporator temperature
sensor T2 is break off.
Connect it well.
Yes
No
Judge 2: Whether the evaporator temperature sensor
is malfunction.
Validate: Check whether the resistance of the
temperature sensor is correct according to Annex 1.
Replace the temperature sensor
No
Yes
Judge 3: Check whether the outdoor ambient
temperature is too high (more than 24℃)
Stop the unit.
Yes
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