110V Models - Graco Mark V Premium Repair Manual

Troubleshooting

110V Models:

STEP 1:
Plug power cord in
110-120 AC
and turn switch ON.
Connect wires to
V
control board and
on/off switch. Turn
-
meter to AC Volts.
Black
On/Off
Black
Switch
Power Cord
18
On/Off
White
Switch
Control
Board
STEP 3:
Check motor thermal switch.
100k ohm
Unplug yellow wires. Meter
should read according to
Resistance Table on page 16.
-
NOTE: Motor should be cool
during reading.
Thermal
Switch
Yellow
Motor
Control
Board
STEP 2:
Plug power cord in
110-120 AC
and turn switch ON.
Connect wires to
V
control board and
on/off switch. Turn
-
meter to AC Volts.
Black
White
Black
Control
Board
Power Cord
Control
Board
STEP 4:
Plug power cord
in and turn switch
ON. Disconnect
potentiometer.
Black
3A2333B