How to solve high & low temp faults of air compressor? | Air Compressor Trouble Shooting Guide
High temperature alarm or shutdown reasons and treatment?
Fault symptoms:
When the compressor is running, the high exhaust temperature exceeds 100℃ will cause protection action.
Cause analysis:
- Insufficient amount of lubricating oil and incorrect specification of lubricating oil;
- Insufficient cooling water and high cooling water temperature;
- The solenoid valve is not powered or the coil is damaged, the diaphragm is broken or aging;
- The ambient temperature exceeds the specified range;
- Oil cooler blocked;
- For the air cooled air compressor, there are cooling fan motor failure, cooling fan damage wind pipe is not smooth or exhaust resistance (back pressure) is large;
- Thermal control valve failure;
- Air filter is blocked;
- The oil filter is blocked, the opening of the lubricating oil supply regulating valve is small, and the oil flow is too small;
- Temperature switch display failure;
Treatment methods:
- If the oil level is lower than L, please stop for fuel H and check the oil change product;
- Check the temperature difference between inlet and outlet water pipes and check the inlet water temperature;
- Maintenance and replacement;
- Increase the exhaust air and lower the room temperature;
- Check the temperature difference between the inlet and outlet water pipes. The normal difference is about 5~8℃. If it is greater than 9℃, the oil cooler pipeline may be blocked;
- Repair and replace the cooling fan, the exhaust pipe is not smooth or the exhaust resistance is cleaned with high pressure air;
- Check whether the oil is cooled by the oil cooler, if not, replace the heat control valve;
- Clean the air filter with low-pressure air;
- Replace the oil filter and increase the oil flow regulating valve;
- Repair and replace the temperature switch.
What is the cause and treatment of lower than normal air compressor exhaust temperature?
Fault symptoms:
When the compressor is running, the exhaust temperature is lower than 75℃, which is not conducive to the safe operation of the unit.
Cause analysis:
- Too much cooling water;
- Low ambient temperature;
- The exhaust temperature is incorrect;
- Failure of thermal control valve (temperature control valve);
- Oil flow is too large;
Treatment methods:
- Adjust the cooling water quantity;
- Adjust the cooling water temperature;
- Replace the temperature sensor;
- Replace/clean the heat control valve (temperature control valve);
- Adjust the oil flow control valve;
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