Hitachi RAS-25CNH1 Service Manual page 100

LD301: Blinks 2 times.
Peak current cut
LD301: Blinks 1 times.
Reset stop
NO
Is the power module normal?
YES
NO
Is the drive circuit normal?
YES
NO
NO
Is the reset circuit normal?
Pin of the micro computer is
17
approx. 5V in the normal state
Operate the air conditioner again.
Does it operate normally?
Perform a final check of operation.
Replace the power module.
Replace defective parts.
Replace defective parts.
Replace defective parts.