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Pressure Relief, page 5
Problem
Sprayer won't run
Pump won't pump material
Material runs out of bottom of sprayer RotoFlex pump worn out
No air from compressor
309797P
Troubleshooting
Cause
Power switch not on
No power at wall outlet
Wrong size generator
Too many items on same circuit
Extension cord too long or wrong
gauge
Breaker tripped
Selector switch in wrong position
Air lock
Mix too thick
Loose fittings
Plugged gun
RotoFlex pump worn out
Pump cold or material frozen in pump Move pump to warm room and allow
Motor start capacitor failure
Loose fittings
Gun air valve closed
Low voltage
Gun needle plugged
Lines not connected
Damaged hose
Worn compressor
Troubleshooting
Solution
Turn switch on.
Check outlet by plugging in another
appliance. If appliance does not
work, try another outlet.
Use a 3500 watt or larger generator.
Refer to Generator Requirements,
page 5
Unplug other items from circuit
Use a different extension cord. Refer
to Grounding and Electric Require-
ments, page 5
Reset breaker
Move selector switch to correct posi-
tion for application
Open air valve on gun
Add water to thin material. Use Mate-
rial Thickness Gauge.
Check and retighten all fittings
Relieve Pressure, page 5. Remove
gun from hose. Clean gun.
Replace hose. Recommended hose
replacement - once a year or every
3000 gallons.
it to warm up or run hot water through
sprayer.
Replace capacitor and restart
Replace hose
Check and retighten all fittings
Open gun air valve
Check extension cord length and
gauge. Replace if different than rec-
ommended. Refer to Grounding and
Electrical Requirements, page 5.
Clean needle and retry.
Check all quick disconnect connec-
tions to gun and hoses
Replace hose
Replace compressor. Contact a qual-
ified Graco Service Center.
17
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