TROUBLESHOOTING CHART
Note: Troubleshooting problems may have similar causes and solutions.
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| PROBLEM |
| POSSIBLE CAUSE |
| SOLUTION |
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Tank pressure exceeded normal |
| Replace pressure switch | |||||||
| Pressure relief valve |
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| opens |
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| operating pressure |
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| Pressure switch stuck |
| Replace pressure switch | |||
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| Tank pressure exceeds preset |
| Motor will start automatically when tank pressure drops below | ||||||
| Motor will not run |
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| pressure switch limit |
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| Motor overload protection has |
| Let motor cool off and overload switch will automatically reset. This | |||
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| tripped |
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| may take several minutes. |
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| Fuse blown or circuit breaker |
| • Replace blown fuse or resed circuit breaker. Do not use fuse or | |||
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| tripped |
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| circuit breaker with higher rating than specified for your branch |
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| circuit. |
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| • Check for proper fuse; “Fusetron” type T is acceptable. | ||
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| • Check for low voltage and proper extension cord size. | ||
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| • Disconnect other applications from circuit. Operate compressor | ||
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| on a dedicated circuit. |
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| Check valve stuck open |
| Remove and clean or replace. | |||
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| Pressure bleeder valve on |
| Bleed line by moving pressure switch lever to OFF Position before | |||
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| pressure switch has not |
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| restarting. If bleeder valve does not open, replace bleeder valve. |
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| unloaded head pressure |
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| Wrong wire gauge in cord or |
| Check for proper gauge and extension cord length. | |||
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| excessive extension cord length |
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| Loose electrical connections |
| Contact authorized service center. | |||
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| Possible defective capacitor |
| Contact authorized service center. | |||
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| Paint spray on internal motor |
| Have checked at service center. Do not operate compressor in the | |||
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| parts |
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| paint spray area |
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| Possible defective motor |
| Have checked at service center. | |||
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19 |
