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1. Troubleshooting High Oil Temperature
Check the cooling system: Confirm that the inlet and outlet temperatures of the water-cooled or air-cooled cooler are within the design range (inlet water ≤ 35℃, outlet 5-8℃ lower than inlet water).
Check oil level and quality: Low oil level or aging oil can lead to poor heat dissipation. Add or replace with lubricating oil of the correct specifications if necessary.
Check ambient temperature: When the ambient temperature exceeds 40℃, especially in air-conditioned rooms, increase ventilation or use auxiliary cooling measures for refrigeration compressors.
2. Common Causes of Startup Failure
Starting relay or overload protection failure: Clicking sounds or intermittent starting failures are often due to poor relay contact or overload protection tripping.
Insufficient power supply voltage: Low voltage can lead to insufficient starting torque. Check the power supply line and voltage stability.
Oil circuit blockage: Blockage of the oil pump or oil filter can lead to insufficient lubrication, causing the compressor to automatically shut down for protection.
3. Noise Diagnosis Points
Check installation levelness: Uneven placement of the unit or a loose base can cause resonance noise. Level the unit and install anti-vibration pads.
Clean the condenser and fan: Dirty or clogged fins or fan blades can cause a buzzing sound; regular cleaning can significantly reduce noise.
Locate internal faults: Abnormal high-frequency noise may originate from valve impacts or bearing wear; it is recommended to use a sound pressure meter or vibration analyzer for inspection.
