Troubleshooting

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

-

Step 3:

Check motor thermal switch. Unplug yellow wires. Meter should read continuity. NOTE: Motor should be cool during reading.

BEEP

Yellow Thermistor

 

Wires to motor

-

 

Power Cord

ti24727a

Control

+

Board

 

+

 

White

N

Black L

-

+

-

ti24729a

 

Step 4:

Disconnect potentiometer. Plug power cord in and turn switch ON.

Step 2:

Plug power cord in and turn switch ON. Connect Probes to ON/OFF switch.

Turn meter to AC Volts.

110-120 AC

V

Control

Board

J8

-

Black

-

 

 

J8

ti24730a

 

 

 

Black

+

 

 

 

 

 

White

N

 

 

 

L

 

J7

 

Control

 

C15

 

 

Board

 

 

 

 

 

 

J11

 

 

ti24728a

 

 

 

40

334466A

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Image 40
Graco 334466A important safety instructions Step