Air-Con 38B Service Manual page 32

display at flicker 8/10
E8
off state
display at
SEC off state
disconnected, replace or connect the feedback
signal wire.
6、Check whether the supply power is phase-lacking or
phase opposition.
7、Check whether the AC electromagnetic contactor is
well.
1、Check whether the filter of the indoor unit is dirty or
blocked, and clean if it is dirty.
2、Check whether the indoor fan is running normally,
frost
and replace the motor if it is abnormal.
protection/over
3、Check whether indoor pipe temperature sensor is
heat protection
normal, and replace the sensor if it is abnormal.
4、Check whether the system pressure is normal, if
abnormal, should check whether there is leakage,
and fill the refrigerant again.
32