Graco 25R757 Operation, Parts page 32

Troubleshooting
Step 1:
Plug Power cord in and turn switch ON.
Connect probes to ontrol board. Turn
meter to AC Volts.
110-120 AC
V
-
On/Off
Switch
Blue
Brown
Power
Cord
Step 3:
Check motor thermal switch. Unplug
yellow wires. Meter should read
100 ohms. NOTE: Motor should be
cool during reading.
Yellow Thermistor
Wires to motor
32
Green
100 ohms
-
Step 2:
Plug Power cord in and turn switch
ON. Connect probes to control board.
Turn meter to AC Volts
110-120 AC
V
-
Green
Power
Cord
Black
Step 4:
Disconnect potentiometer.
Plug power cord in and
turn switch ON.
Control Board
Blue
To Potentiometer
ti24084a
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