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Gree · Heat pump

H6 Indoor fan motor not running / no feedback

High severity Gree SapphireGree Livo GEN4Gree Vireo GEN3Gree Multi21+

What the control is telling you

The indoor board gets no speed signal from the DC fan motor, so everything stops and the louver holds position.

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)

Likely causes

  • Fan wheel jammed or rubbing
  • Motor plug loose (feedback or drive side)
  • Fan motor failed
  • Indoor board speed-sensing circuit faulty

Test and repair steps

  1. With power off, spin the blower wheel by hand; fix rubbing or a loose wheel.
  2. Reseat the motor plug on the indoor board.
  3. Power up check 280-310 VDC between motor plug pins 1 and 2 and 15 VDC between pins 2 and 3; if missing, replace the board.
  4. Check for a control signal between pins 2 and 4 while calling; if present and the motor does not run, replace the motor.
  5. If no signal, replace the indoor board.

Models that show this code

14 models in Gree Sapphire, Gree Livo GEN4, Gree Vireo GEN3, Gree Multi21+

3VIR09HP115V1A3VIR09HP230V1A3VIR12HP115V1A3VIR12HP230V1A3VIR18HP230V1A3VIR24HP230V1A4LIV30HP230V1AH4LIV36HP230V1AHMULTI18HP230V1COMULTI24HP230V1COSAP09HP230V1AHSAP12HP230V1AHSAP18HP230V1AHSAP24HP230V1AH

Other codes on the same units

  • F8 Compressor slowed - high current
  • F9 Compressor slowed - high discharge temperature
  • H0 Compressor slowed - high indoor coil temp in heating
  • H1 Defrost or oil return (status)
  • H3 Compressor overload protection
  • H4 System abnormal (overload)
  • H5 IPM (inverter module) protection
  • H7 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. 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.