Graco Mark VII, 795 Sprayer Will Not Run, See following page for steps, Troubleshooting, 332916C

Models: Mark V 795 Mark X

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Sprayer Will Not Run

Sprayer Will Not Run

(See following page for steps)

Remove control box cover. Turn sprayer ON. Observe control board status light on control board (see page 27).

No light

 

 

 

Once

Normal operation

 

 

Light on

Control board

Continuously

commanding

 

motor to run

 

 

Flashing

See Code section

 

for further

 

troubleshooting

 

 

See Step 1. Do you have over 100 VAC (220 VAC for 230V units)?

YES

See Step 3. Is the

proper reading present through the thermal switch wires?

Troubleshooting

 

 

 

See Step 2. Do

 

 

 

 

 

 

 

 

you have over

 

 

 

 

 

 

 

 

 

 

 

 

Repair or

NO

 

 

100 VAC

 

NO

 

 

 

 

(220 VAC for

 

 

 

replace

 

 

 

 

 

 

 

 

230V units)?

 

 

 

 

power cord.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

Replace the

ON/OFF switch.

If motor is hot, let cool and retest. If Step 3 still shows

NO(See following page for steps)Manual background incorrect resistance, replace motor. The motor has

a defective thermal device.

YES

See step 4. Does the motor run?

YES

Replace

potentiometer.

 

 

 

Connect a test

 

NO

 

 

transducer to the

 

 

 

board. Does the

 

 

 

 

 

 

 

 

 

 

 

motor run?

 

 

 

 

 

 

NO

YES

Replace the

 

 

control board.

 

 

 

 

 

 

Replace the

transducer

332916C

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Graco Mark VII, Mark IV, Mark X, 795, 695, 1095 Sprayer Will Not Run, See following page for steps, Troubleshooting, 332916C