TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically when power is on. When servicing, you may be exposed to
voltage sources, compressed air, or moving parts. Before servicing unit unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and allow the air compressor to cool.
PROBLEM | CAUSE |
| CORRECTION | |||
Excessive tank | Pressure switch does |
| Move On/Auto/Off lever to | |||
pressure - safety | not shut off motor when |
| the "Off" position, if the | |||
valve pops off. | compressor reaches "cut- |
| outfit does not shut off | |||
| out" pressure. |
| contact a Trained Service | |||
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| Technician. | |||
| Pressure switch |
| Contact a Trained Service | |||
| too high. |
| Technician. | |||
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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. | |||
Air leaks in air | Defective air tank. |
| Air tank must be replaced. | |||
tank or at air |
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| Do not repair the leak. | |||
tank welds. |
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| 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. | |||
Air leaks | Leaking seal. |
| Contact a Trained Service | |||
between head |
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| Technician. | |||
and valve plate. |
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Air leak from | Possible defect in safety |
| Operate safety valve | |||
safety valve. | valve. |
| manually by pulling on ring. | |||
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| If valve still leaks, it should | |||
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| be replaced. | |||
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Knocking Noise. | Possible defect in safety | Operate safety valve | ||||
| valve. | manually by pulling on ring. | ||||
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| If valve still leaks, it should | ||||
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| be replaced. | ||||
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19- ENG | A13640 |
