TROUBLESHOOTING
Performing repairs may expose voltage sources, moving parts, or compressed air sources. Personal injury may
occur. Before servicing: Unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and allow the air compressor to cool.
| PROBLEM | CAUSE | CORRECTION | |
| Excessive | Pressure switch does | Move On/Auto/Off lever to | |
| tank pressure | not shut off motor when | the "Off" position, if the air | |
| - safety valve | compressor reaches "cut- | compressor does | |
| pops off. | out" pressure. | not shut off, contact a | |
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| Trained Service Technician. | |
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| Pressure switch | Contact a Trained Service | |
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| too high. | Technician. | |
| Air leaks at | Tube fittings are not tight | Tighten fittings where air | |
| fittings. | enough. | can be heard escaping. | |
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| Check fittings with soapy | |
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| water solution. DO NOT | |
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| OVERTIGHTEN. | |
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Air leaks at or | Check valve seat damaged. | A defective check valve | ||
inside check |
| results in a constant air leak | ||
valve |
| at the pressure release valve | ||
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| when there is pressure in the | |
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| tank and the compressor | |
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| is shut off. Replace check | |
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| valve. Refer to the "To | |
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| Replace or Clean Check | |
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| Valve" in the "Service and | |
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| Adjustments" section. | |
| Air leaks at | Defective pressure switch | Contact a Trained Service | |
| pressure switch | release valve. | Technician. | |
| release valve. |
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| (if equipped) |
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| Air leaks in air | Defective air tank. | Air tank must be replaced. | |
| tank or at air |
| Do not repair the leak. | |
| tank welds. |
| Risk of | |
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| Bursting. | |
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| Do not drill into, weld or | |
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| otherwise modify air tank | |
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| or it will weaken. The tank | |
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| can rupture or explode. | |
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| Air leaks | Leaking seal. | Contact a Trained Service | |
| between head |
| Technician. | |
| and valve plate. |
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A09713 | 24- ENG |
