Troubleshooting
Troubleshooting
Problem | Cause | Solution |
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E=XX is displayed | Fault condition exists | Determine fault correction from table, page 35. |
Engine will not start | Engine switch is OFF | Turn engine switch ON |
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| Engine is out of gasoline | Refill gas tank. Honda Engines Owner's Man- |
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| ual. |
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| Engine oil level is low | Try to start engine. Replenish oil, if necessary. |
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| Honda Engines Owner's Manual. |
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| Spark plug is disconnected or damaged | Connect spark plug cable or replace spark plug |
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| Cold engine | Use choke |
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| Fuel shutoff lever is OFF | Move lever to ON position |
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| Oil is seeping into combustion chamber | Remove spark plug. Pull starter 3 to 4 times. |
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| Clean or replace spark plug. Start engine. |
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| Keep sprayer upright to avoid oil seepage |
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Engine operates, but displacement | Error code displayed | Reference Pressure Control repair, page 61. |
pump does not operate |
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Applicator switch is OFF | Turn applicator switch ON | |
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| Pump setting too low | Turn pressure adjusting knob clockwise to |
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| increase pressure. |
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| Tip or tip filter is clogged | Clean tip or tip filter, see manual |
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| 313537/313603. |
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| Displacement pump piston rod is stuck | Repair pump, see manual 310894 or page 70. |
| due to dried paint or texture |
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| Connecting rod is worn or damaged | Replace connecting rod. Page 43. |
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| Drive housing is worn or damaged | Replace drive housing. Page 46. |
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| Electrical power is not energizing clutch | Check wiring connections. Page 84. |
| field | Reference Digital Display Messages. |
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| Page 35. |
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| Reference wiring diagram. Page 84. |
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| With applicator switch ON and pressure turned |
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| to MAXIMUM, use a test light to check for |
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| power between clutch test points on control |
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| board. |
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| Remove clutch wires from control board and |
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| measure resistance across clutch coil. At 70° F |
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| (21° C), the resistance must be between 1.2 |
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| +0.2Ω; if not, replace pinion housing. |
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| Have pressure control checked by authorized |
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| Graco dealer |
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| Clutch is worn, damaged, or incorrectly | Adjust or replace clutch. Page 57. |
| positioned |
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| Pinion assembly is worn or damaged | Repair or replace pinion assembly. Page 49. |
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| Base Coat Pump: Applicator switch on | See page 70. |
| material hose and/or Prime Switch on |
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| Pressure Control are damaged. |
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| Top Coat Pump: Pump is not correctly | Rotate pump to align transducer port toward |
| aligned to pump sensor or sensor is | back of sprayer. Replace damaged pump sen- |
| damaged. | sor. |
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313483A | 39 |
