– 76 –
LD301 blinks 6 time.
The temperature at the
OH thermistor rises.
LD301 blinks 5 time.
Overload lower limit cut.
LD301 blinks 4 time.
Failure of switching.
LD301 blinks 3 time.
Abnormal low speed.
Is the thermistor circuit normal?
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?
Replace parts in the
thermistor circuit.
Replace any defective parts.
Replace the power module.
Replace any defective parts.
No
No
No
Check continuity of new parts.
Check continuity of pattern and
lead wires according to the
P.W.B. and schematic diagrams.
Ye s
Ye s
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