44 PB
OPERATION
36k Sequence of Operation
136
144
126
131
136
144
208
217
230
Diagostic
code
Designation of Sensors Faults
F1 Indoor ambient temperature The sensor is detected to be open-circuited or short-circuited for
successive 5 seconds
F2 Indoor tube temperature The sensor is dected to be open-circuited or short-circuited for suc-
cesive 5 seconds
F3 Outdoor ambient temperature The sensor is detected to be open-circuited or short-circuited for
successive 30 seconds
F4 Outdoor tube temperature The sensor is detected to be open-circuited or short circuited for
successive 30 seconds, and no detection is performed is performed
within 10 minutes after defrost begins
F5 Exhaust After the compressor has operated for 3 minutes, the sensor is
detected to be open circuited or short circuited for 30 successive
seconds
F6 Overload After the compresor has operated for 3 minutes, the sensor is
detected to be open circuited or short circuited for 30 successive
seconds.
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