6.0 TROUBLESHOOTING CHART (Continued)
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| TROUBLE |
| CAUSE &/OR DISPLAY |
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| WHAT TO DO |
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| Low system air pressure |
| Compressor running in |
| ■ | Press LOAD button. |
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| UNLOAD Mode. |
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| Controller |
| ■ | Press STOP button. |
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| Set |
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| Dirty air filter element. |
| ■ Check filter condition. Replace as required. |
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| Air leak. |
| ■ Check air system piping. |
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| Moisture separator trap drain |
| ■ | Inspect and repair. |
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| stuck open. |
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| Inlet valve not fully open. |
| ■ Inspect and repair. Check control system operation. |
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| System demand exceeds compressor |
| ■ Install larger or an additional compressor. |
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| delivery. |
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| High coolant |
| Excessive coolant level. |
| ■ Check level, lower if necessary by draining. |
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| consumption/coolant in |
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| air system |
| Plugged separator element. |
| ■ Check separator pressure drop. |
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| Separator element leak. |
| ■ Check separator pressure drop. If low, replace element. |
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| Plugged separator scavenge |
| ■ | Remove and inspect screen/orifice. Clean if required. |
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| screen/orifice. |
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| Compressor operating at low pressure |
| ■ Operate at rated pressure. Reduce system load. |
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| (75 psig [5.2 bar] or below). |
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| Coolant system leak. |
| ■ Inspect and repair leaks. |
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| Water in air system |
| Defective moisture |
| ■ Inspect and clean if required. |
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| separator/drain trap |
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| Replace separator/trap if defective. |
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| Trap drain or drain piping plugged. |
| ■ | Inspect and clean. |
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| Aftercooler core dirty. |
| ■ | Inspect and clean. |
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| Enclosure panels not in place. |
| ■ | Install enclosure panels. |
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| No aftercooler on unit. |
| ■ | Install aftercooler. |
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| Drain line/drip leg incorrectly installed. |
| ■ | Slope drain line away from trap. Install drip leg. |
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| No refrigerated or desiccant dryer |
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| in air system. |
| ■ Contact local |
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| Excessive noise level |
| Compressor defective. (Bearing or gear |
| ■ Contact authorized distributor immediately. |
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| failure or rotor contact.) |
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| Do not operate unit. |
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| Enclosure panels not in place. |
| ■ | Install enclosure panels. |
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| Loose component mounting. |
| ■ | Inspect and tighten. |
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| Excessive vibration |
| Loose components. |
| ■ | Inspect and tighten. |
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| Motor or compressor |
| ■ Contact authorized distributor immediately. |
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| bearing failure. |
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| Do not operate unit. |
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| External sources. |
| ■ Inspect area for other equipment. |
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| Pressure relief valve |
| Compressor operating over pressure. |
| ■ Adjust Intellisys set points. |
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| opens |
| Defective valve. |
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| Replace valve. |
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47
