TROUBLESHOOTING
Risk of Unsafer Operation. 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 tank | Pressure switch does not | Move On/Auto/Off lever to |
pressure - safety | shut off motor when | the "Off" position, if the unit |
valve pops off. | compressor reaches | does not shut off contact a |
| Trained Service Technician. | |
|
| Contact a Trained Service |
| Pressure switch | Technician. |
| too high. |
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|
|
Air leaks at | Tube fittings are not tight | Tighten fittings where air |
fittings. | enough. | can be heard escaping. |
|
| Check fittings with soapy |
|
| water solution. Do Not |
|
| Overtighten. |
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 |
|
| when there is pressure in the |
|
| tank and the compressor |
|
| is shut off. Replace check |
|
| valve. Refer to the "To |
|
| Replace or Clean Check |
|
| Valve" in the "Service and |
|
| Adjustment" section. |
|
|
|
Air leaks at | Defective pressure switch | Contact a Trained Service |
pressure switch | release valve. | Technician. |
release valve. |
|
|
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 |
|
| Bursting. |
|
| Do not drill into, weld or |
|
| otherwise modify air tank |
|
| or it will weaken. The tank |
|
| can rupture or explode. |
|
|
|
Air leaks | Leaking seal. | Contact a Trained Service |
between head |
| Technician. |
and valve plate. |
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A10819 | 20- ENG |
