Troubleshooting - Graco ProComp HVLP 3800 Instructions Manual

Problem
No fluid delivery
Turbine not starting
Poor atomization
Circuit breaker trips
12

Troubleshooting

Cause
No material, no remote container
pressurization, hose or pickup tube
clogged
No power
Dirty filter
Extension cord too long
Hose too long
Filter clogged
High ambient temperature
Excessive brush wear
Excessive current draw
Troubleshooting
Solution
Check container for material
Check for leaks at the container gas-
ket (2-quart pressure pot cover).
Tighten cover if loose.
Check for air flow from male
quick-disconnect at compressor out-
let (should be approximately 1/4
CFM).
Turn pressure regulator clockwise.
Look for pressure on gauge. (If no
pressure on gauge, check air line fit-
tings.)
Check hole in 2-quart pressure pot
cover at needle valve for blockage or
dirt. Clean if necessary.
Check for obstructions.
Check if fluid pickup tube is loose.
Tighten.
Blow out and clear material hose.
Check outlet for power. Cycle red
rocker switch.
Check that correct IEC (modular)
cord is used and plugged in.
Check circuit breaker (38). Push to
reset.
Clean filter and replace as necessary.
Extension cord must be 3-wire, 12
AWG, 50 ft (15 m) or shorter.
Replace with shorter hose. See
Accessories, page 20, for shorter
hose and part no.
Clean filter and replace as necessary
Move turbine to cooler area.
Remove cover and turbine and check
for free motor rotation and for brush
wear. Replace motor brushes if nec-
essary. Return to authorized service
center.
Return to authorized service center.
309907P