1. TROUBLESHOOTING
| Table 1. | Troubleshooting |
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Part | Possible Failure |
| Symptoms | Solution |
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Vacuum Valve | Diaphragm Failure |
| Nozzle sputter. | Replace defective |
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| Low output. | component. |
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| No output. |
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| Pilot Safety Regulator |
| Nozzles sputter. | Repair regulator using |
| Diaphragm Ripped |
| Air in water line. | repair kit. |
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| Low output. |
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| No Output. |
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| Water drips from bonnet. |
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| Valve Seat |
| Pressure water line resulting | Replace |
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| in heavy mist. | vacuum valve. |
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| Could damage main |
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| diaphragm. |
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| No control of output. |
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| Other |
| Vacuum leak, low output, no | Replace. |
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| output. |
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| Water leaks out. |
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| Cracked Housing |
| Vacuum leak or water dripping | Replace damaged |
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| from valve. | component. |
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| Blockage |
| Reduced output. | Clean. |
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| No output. |
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Pilot Air | Damaged Diaphragm |
| Loss in air pressure. | Repair. |
Regulator |
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| No air pressure. |
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| Uncontrolled air pressure. |
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| Stuck Closed Or Open |
| Unable to adjust pressure. | Disassemble and clean. |
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Pilot Water | Damaged Diaphragm |
| Loss in water pressure. | Repair. |
Regulator |
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| No water pressure. |
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| Uncontrolled water pressure. |
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| Stuck Closed Or Open |
| Unable to adjust pressure. | Disassemble and clean. |
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10-60
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