Midea US-KC41Y1/N1-N1(I6)

17
11 Trouble shooting
PROBLEM
POSSIBLE CAUSE
REMEDY
No power display
on panel or any
one of the buttons
failure.
Power failure
Check the power supplier if the power supplier is supplied to
the unit. Check the power cord and correct if damaged.
Transformer (Discharge
transformer before testing)
Check resistance between the two input/output lines on
transformer. Replace the transformer if either of the
input/output is open or the transformer is damaged.
Display board or main PCB
failure
Check the voltage on display board. Replace the display board
if it is +5V else replace the main PCB.
Remote control
failure.
Battery failure
Check the voltage of battery. Replace batteries if the voltage is
lower than 2.3V.
Fan motor runs
Cycles on overload.
Check voltage. Call an electrician if not within limits.