TP-6137 5/0350 Section 8 Controller Troubleshooting
Yes
C
D Charge the capacitor to
reset the magnetic
retentivity.
D Check the performance of
the capacitor.
D Check if the diodes
(D4--D5) work correctly.
D Check if the rotor works
correctly.
D Check if the stator works
correctly.
Note: Follow the procedures
included in the Engine
Service Manual and
Section9ofthis
manual.
Is AC output at the correct
voltage (e.g. 120 volts AC)?
Yes
If there AC output when the
on/off switch is held and the
unit is running?
No
Is AC voltage present on the
capacitor (CAP) connections
(C1--C2)? See Section 11.
No
Are the CAP connections
(C1--C2) okay?
No
Reset the connections.
Is 12 volts DC present on
the coil of the K3 relay?
No
Check the stator and the
rotor. See Section 9.
Yes
No
Yes
Yes
Are the K3 relay contacts
opened (30--87a)?
Change the K3 relay.
No Yes
Isthe10-ampfuse(F2)
okay?
Change the fuse (F2). Is the bridge rectifier (BR1)
okay?
No
Yes
Change the bridge rectifier.
D Check the K3 connection
condition.
D Check the BRI connection
condition (10-11).
D Check the TB1 connection
condition (10-11).
D Are these checks okay?
Check the stator winding
connections. See Section 9
and Section 11.
Yes
Check the stator winding
(10--11).
Note: See Section 9.
Yes
Figure 8-9 Troubleshooting Relay Controller Control Panel (4 of 4)
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