May have a problem of defrost mode it means the gas pressure is not right
SOURCE: Yonan Split Air Conditioning System
F6
ambient temp.
sensor of outdoor
fault
1?Check whether the resistance of sensor is normal,
otherwise replace it.
2?Check whether the sensor wire is short circuit or open
circuit, and whether the plug is well contacted, whether
there is welding off or rosin joint on the electric control
board, repair it if there is any above.
3?When the 1 and 2 are both normal, then the components
or integrated circuit is damaged, the electric control
board should be replaced.
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