Graco FinishPro II 395 Manual page 17

Problem
Air compressor does not run
Poor air spray pattern
Water in pattern
Compressor does not shut off
when gun is not triggered.
333126A
What To Check
(If check is OK, go to next check)
1.
Power/function selector switch
2. Voltage to compressor below 105
Vac for 110 - 120 Vac models or
below 210 Vac for 240 Vac models.
3. Loose power connections.
4. Excessive head pressure (compres-
sor hums).
5. Excessive head pressure (compres-
sor hums).
6. Excessive head pressure (compres-
sor hums).
7. Excessive head pressure (compres-
sor hums).
8. Compressor thermal switch is open.
Ensure ambient temperature is
below 115 °F (46 °C).
9. Low compressor performance.
1. Air cap air ports clogged.
2. .
Air cap worn
3. Worn spray tip.
1. Water in air line.
1. Leak in air line.
2. Pressure switch wore out.
3. Pressure relief valve worn out.
What To Do
(When check is not OK, refer to this column)
. Set function selector switch to AA; replace switch.
Try another outlet. Reduce extension cord length or
increase extension cord gauge.
Verify all connections are firm.
Moisture frozen in air supply line.
Wait for air pressure to bleed to zero.
Electrical air unloader stuck closed. Replace
electrical air unloader.
Open air regulator.
Install air line.
Do Startup, Operation Manual 311905
Move sprayer to shaded, cooler area.
Worn compressor; repair compressor with
Compressor Service Kit 288723.
Soak in solvent to clean.
Replace air cap.
Relieve pressure, page 11. Replace tip. Refer to
gun instruction manual.
Add Water Separator Kit 289535 to air line and inline
water filter kit 24U981 (5 Pack), 24U982 (25 Pack).
Check all air connections. Make sure there are no
leaks.
Replace pressure switch.
Replace pressure relief valve.
Troubleshooting
17