Graco Inc 313314B, 300E Motor Will Not Run, See . Do You have over AC volts?, Replace

Repair / Réparation / Reparación

Motor Will Not Run

(See following page for steps)

Remove control box cover. Turn sprayer ON. Observe green light on control board.

No light
Once	Normal operation
Light on	Control board
Continuously	commanding
	motor to run
Flashing	See Error Code
	section for further
	troubleshooting

See Step 1. Do you have over 100 AC volts?

YES

See Step 2. Do

NO you have over

100 AC volts?

YES

Replace the

ON/OFF switch.

Repair or

NO replace power cord.

See Step 3. Is the

proper reading present through the thermal switch wires?.

YES

See step 4. Does the motor run?

YES

Replace

potentiometer.

Pressure switch.

If motor is hot, let cool and retest. If Step 4 still shows

NO incorrect resistance, replace motor. The motor has

a defective thermal device.

	Connect a test
NO	transducer to the
	board. Does the
	motor run?

NO

YES	Replace the
	control board.

Replace the

transducer

40 313314B