![](/images/new-backgrounds/1213970/21397027x1.webp)
Troubleshooting
Troubleshooting
Problem | Cause | Solution |
|
|
|
|
|
|
Sprayer won’t run | Power switch not on | Turn switch on. |
|
|
|
| No power at wall outlet | Check outlet by plugging in another |
|
| appliance. If appliance does not |
|
| work, try another outlet. |
|
|
|
| Wrong size generator | Use a 3500 watt or larger generator. |
|
| Refer to Generator Requirements, |
|
| page 6. |
|
|
|
| Breaker tripped | Reset breaker. |
|
|
|
Pump won’t pump material | Air lock | Open air valve on gun. |
|
|
|
| Selector switch in wrong position | Move selector switch to correct posi- |
|
| tion for application. |
|
|
|
| Mix too thick | Add water to thin material. Use Mate- |
|
| rial Thickness Gauge. |
|
|
|
| Loose fittings | Check and retighten all fittings. |
|
|
|
| Plugged gun | Relieve Pressure, page 6. Remove |
|
| gun from hose. Clean gun. |
|
|
|
| Pump hose worn out | Replace hose. Recommended hose |
|
| replacement - once every year. |
|
|
|
| Pump cold | Move pump to warm room and allow |
|
| it to warm up or run hot water through |
|
| sprayer. |
|
|
|
Material runs out of bottom of sprayer | Pump hose worn out | Replace hose. |
|
|
|
| Loose fittings | Check and retighten all fittings. |
|
|
|
No air from compressor | Gun air valve closed | Open gun air valve. |
|
|
|
| Low voltage | Check extension cord length and |
|
| gauge. Replace if different than rec- |
|
| ommended. Refer to Grounding and |
|
| Electrical Requirements, page 6. |
|
|
|
| Gun needle plugged | Clean needle and retry. |
|
|
|
| Worn compressor | Replace compressor. Contact a qual- |
|
| ified Graco Service Center. |
|
|
|
| Lines not connected | Check all quick disconnect connec- |
|
| tions to gun and hoses. |
|
|
|
| Damaged hose | Replace hose. |
|
|
|
14