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Gree · Heat pump troubleshooting

Noise or vibration - Gree ductless

What is going on

Clicks, gurgles or rattles from the indoor or outdoor unit.

Likely causes

  • Plastic expanding at start/stop (normal)
  • Refrigerant flow noise (normal)
  • Loose parts or debris
  • 4-way valve coil buzz
  • Compressor not sitting on its mounts or internal noise / overcharge

Check in this order

  1. Cracking or water-flow sounds at start/stop are normal and fade in a few minutes.
  2. Remove debris, tighten screws and add damping where parts touch.
  3. Replace a buzzing 4-way valve coil.
  4. Check compressor feet and bolts; if noise is internal, check for overcharge, else replace the compressor.

Applies to: Gree Sapphire 9-24k (SAP..HP230V1A), Livo GEN4 30-36k (4LIV..HP230V1A), Vireo GEN3 9-24k (3VIR..HP115/230V1A), Multi21+ 18-24k multi-zone (MULTI..HP230V1CO)

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Source: Gree Sapphire 9-12k (SAP09-12HP230V1A) service.pdf - section 9.3 Troubleshooting for Normal Malfunction; Gree Sapphire 18-24k (SAP18-24HP230V1A) service.pdf - section 9.3 Troubleshooting for Normal Malfunction; Gree Livo GEN4 30-36k (4LIV30-36HP230V1A) service.pdf - section 9.3 Troubleshooting for Normal Malfunction; Gree Vireo GEN3 9-24k (3VIR..HP115-230V1A) service GREE_VIREOGEN3_SERVICE_090921.pdf - section 9.3 Troubleshooting for Normal Malfunction; Gree Multi21+ multi-zone 18-24k (MULTI18-24HP230V1CO) service.pdf - section 9.3 Maintenance Method for Normal Malfunction. Written in our own words; check the manual for your exact model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.