– 196 –
LD301 blinks 6 times.
Is the thermistor circuit
normal?
Replace parts in the
thermistor circuit.
Replace any defective parts.
Replace the power module.
Replace any defective parts.
Check continuity of new
parts.
Check continuity of pattern
and lead wires according to
the P.W.B. and schematic
diagrams.
Are R503, R541, R542, R549
and peripheral circuits
normal?
Replace the main P.W.B.
Is the power module normal?
Is the drive circuit normal?
LD301 blinks 5 times.
Overload lower limit cut.
LD301 blinks 4 times.
Failure of switching.
LD301 blinks 3 times.
Abnormal low speed.
The temperature at the
OH thermistor rises.
Yes
Yes
No
No
No
