– 109 –
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.
Replace parts in the
thermistor circuit.
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
Replace system power
module or defective parts.
Replace the system power
module.
Replace any defective
parts.
Is the thermistor circuit normal?
Are R503, R541, R542, R549
and peripheral circuits of
system power module normal?
Replace the main P
.W
.B.
Is the system power module
normal?
Is the drive circuit normal?
Summary of Contents for RAC25NH4
Page 37: ...CIRCUIT DIAGRAM MODEL RAK 25NH4 RAK 35NH4 RAK 50NH4 37 ...
Page 38: ...CIRCUIT DIAGRAM MODEL RAC 25NH4 RAC 35NH4 RAC 50NH4 39 ...
Page 40: ... 42 MODEL RAC 25NH4 RAC 35NH4 RAC 50NH4 MAIN P W B Marking on P W B COMPONENT SIDE ...
Page 90: ... 100 SELF DIAGNOSIS LIGHTING MODE MODEL RAC 25NH4 RAC 35NH4 RAC 50NH4 ...
