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| Troubleshooting |
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Problem | Cause | Solution |
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Fan pattern varies dramatically | Pressure control switch is worn | Take sprayer to Graco/MAGNUM |
while spraying. | and causing excessive pressure | authorized service center. |
OR | variation. |
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Sprayer does not turn on promptly |
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when resuming spraying. |
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Cannot trigger spray gun. | Spray gun trigger lock is locked. | Rotate trigger safety lever to |
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| unlock trigger lock, page 10. |
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Paint is coming out of pressure | Pressure control switch is worn. | Take sprayer to Graco/MAGNUM |
control switch. |
| authorized service center. |
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Prime/Spray valve actuates | System is over pressurizing. | Take sprayer to Graco/MAGNUM |
automatically relieving pressure |
| authorized service center. |
through prime tube. |
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Paint leaks down outside of pump. | Pump packings are worn. | Replace pump packings. |
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Motor is hot and runs intermit- | Vent holes in enclosure are | Keep vent holes clear of |
tently. Motor automatically shuts | plugged or sprayer is covered. | obstructions and overspray and |
off due to excessive heat. Dam- |
| keep sprayer open to air. |
age can occur if cause is not cor- |
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Extension cord is too long or not a | Replace extension cord. Read | |
rected. | heavy enough gauge. | Grounding and Electrical |
See Thermal Overload, page 7. |
| Requirements, page 7. |
| Unregulated electrical generator | Use electrical generator with a |
| being used has excessive voltage. | proper voltage regulator. Sprayer |
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| requires 120VAC, 60 Hz, |
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312001R | 29 |
