If the temperature of the discharged compressed air is high, it can be because of overheating caused as a result of the following reasons:
- Chocked or dirty intercooler tube.
- Cooling water pump capacity decreased or insufficient.
- The atmosphere at air suction of compressor is hot.
- No forced ventilation for fresh air near the compressor.
- Damage in the head gasket.
- Chocked air suction filter.
- Valves of 1st or 2nd stage leaking.