Graco 3A4133 Operation - Repair - Parts page 37

Step 1:
Plug Power cord in and turn
switch ON. Connect probes
to L and N on control board.
Turn meter to AC Volts.
110-120 AC
V
-
Control
Power
Cord
ti24727a
Step 2:
Plug power cord in and turn
switch ON. Connect Probes
to ON/OFF switch.
Turn meter to AC Volts.
Black
ti24728a
3A4187C
Board
White
N
Black
L
Black
White
C15
J11
Step 3:
Check motor thermal switch.
Unplug yellow wires. Meter
should read continuity.
NOTE: Motor should be cool
during reading.
Yellow Thermistor
Wires to motor
110-120 AC
V
-
J8
N
L
J7
Control
Board
Troubleshooting
BEEP
-
Step 4:
Disconnect potentiometer.
Plug power cord in and
turn switch ON.
Control
Board
J8
ti24730a
ti24729a
37