“The air compressor just restarted, and it tripped again in less than 5 minutes!”"The production line is stuck, and the technician is rushing around the machine”When facing frequent air compressor tripping, don’t hurry to call for repairs—most likely these small issues are causing trouble. Follow these steps to fix it quickly!
Cause 1: Voltage Fluctuations
Air compressors are super sensitive to voltage! If welding machines, punch presses, or other high-power equipment run simultaneously in the workshop, voltage swings can easily trigger a trip.✅ Solutions:
- Use a multimeter to test the incoming voltage—ensure it stays within ±5% of the rated voltage (e.g., 361-399V for 380V models).
- Arrange staggered startup times for high-power devices to avoid concurrent power draw.
- Install a voltage stabilizer if fluctuations persist to eliminate voltage-related trips.
Cause 2: Machine Overheating
High temperatures in summer or clogged cooling vents can make the compressor “overheat,” triggering thermal protection and tripping.✅ Solutions:
- First, cut off power! If the cabinet feels hot, overheating is the culprit.
- Use a hair dryer to clean dust from the radiator fins (avoid high-pressure water guns—they can damage components).
- Ensure at least 30cm of clearance around the machine; don’t block air vents with cartons or shelves.
Cause 3: Overload
Either too many air-consuming devices are running, or air leaks exist in the pipeline—leaving the compressor overworked and unable to cope.✅ Solutions:
- Turn off non-essential air-consuming equipment to see if tripping stops.
- Check pipeline joints and valves for leaks by applying soapy water (bubbles indicate leak points).
- If overload is frequent, the compressor may be undersized. For long-term reliability, consider upgrading to a model with matching displacement.
Cause 4: Clogged Filters
Dirty air filters or oil filters (left unchanged for too long) block airflow, causing sudden pressure spikes and tripping.✅ Solutions:
- Open the air filter cover—replace it if the filter is covered in black dust.
- Replace the oil filter according to the manual (typically every 500-800 operating hours); don’t wait until it’s clogged.
- Keep a reminder: Mark the replacement date after changing filters to avoid forgetting next time!
Final Note:
If tripping continues after trying the above methods, core components like the motor or contactor may be faulty. Do not disassemble the machine yourself! Contact the manufacturer’s after-sales service promptly—it’s safe and efficient.
What other “mood swings” has your air compressor had? Share in the comments and avoid pitfalls together!
Post time: Nov-26-2025
