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Gree · Heat pump

P5 Compressor phase overcurrent

High severity Gree SapphireGree Livo GEN4Gree Vireo GEN3Gree Multi21+Gree GMV6 Mini VRF

What the control is telling you

Current in a compressor phase went over the limit (GMV6: inverter compressor overcurrent).

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), GMV6 Ultra Heat Mini VRF 36-60k (GMV-V..WL/C-T(U))

Likely causes

  • Supply voltage out of range
  • Compressor U/V/W wires loose or in wrong order
  • Compressor winding fault or grounded winding
  • Overcharge, high load, dirty coils
  • Inverter board fault

Test and repair steps

  1. Warning: Kill power and let the outdoor board capacitors bleed down (about 20 min, or meter the DC bus below 20 V) before touching the inverter board.
  2. Check supply voltage is within 210-250 VAC at L-N.
  3. Check the compressor U/V/W wires are tight and in the order shown on the wiring diagram.
  4. Measure resistance between the three compressor terminals (should be about equal) and from each terminal to the copper (should be over 500 ohm).
  5. Clean coils, check fans and correct any overcharge.
  6. Replace the compressor if the windings fail; otherwise replace the outdoor board.

Models that show this code

17 models in Gree Sapphire, Gree Livo GEN4, Gree Vireo GEN3, Gree Multi21+, Gree GMV6 Mini VRF

3VIR09HP115V1A3VIR09HP230V1A3VIR12HP115V1A3VIR12HP230V1A3VIR18HP230V1A3VIR24HP230V1A4LIV30HP230V1AH4LIV36HP230V1AHGMV-V36WL/C-T(U)GMV-V48WL/C-T(U)GMV-V60WL/C-T(U)MULTI18HP230V1COMULTI24HP230V1COSAP09HP230V1AHSAP12HP230V1AHSAP18HP230V1AHSAP24HP230V1AH

Other codes on the same units

  • L7 No master indoor unit
  • L8 Indoor power insufficient
  • L9 Power protection
  • P4 Compressor drive PFC protection
  • P6 Compressor drive IPM protection
  • P7 Inverter module temperature sensor fault
  • P8 Inverter module overheated
  • P9 Inverter compressor lost synchronism

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Source: Gree Sapphire 9-12k (SAP09-12HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Sapphire 18-24k (SAP18-24HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Livo GEN4 30-36k (4LIV30-36HP230V1A) service.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Vireo GEN3 9-24k (3VIR..HP115-230V1A) service GREE_VIREOGEN3_SERVICE_090921.pdf - section 9.1 Error Code List / 9.2 Procedure of Troubleshooting; Gree Multi21+ multi-zone 18-24k (MULTI18-24HP230V1CO) service.pdf - section 9.1 Malfunction status sheet / 9.2 Malfunction Checking and Elimination; Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V36-48-60WL-C-T(U)) service.pdf - section Chapter 3 Faults, 4.1 Error Indication. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

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.