Gree · Heat pump

P6 Compressor drive IPM protection

High severity Gree GMV6 Mini VRF

What the control is telling you

Compressor drive fault: compressor drive ipm protection.

Applies to: Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V..WL/C-T(U))

Likely causes

Compressor winding fault
Poor refrigerant flow or dirty coils/filters
Supply voltage problem
Drive / main board fault

Test and repair steps

Warning: Turn off power and wait for the board to discharge before testing.
Measure compressor windings equal resistance between terminals and open to ground.
Check refrigerant flow and clean filters, coils and blower wheels.
Check 208/230 VAC supply.
Power off 15 min and restart; if the code repeats after 3 tries, replace the outdoor main board (or the compressor if windings fail).

Models that show this code

3 models in Gree GMV6 Mini VRF

GMV-V36WL/C-T(U)GMV-V48WL/C-T(U)GMV-V60WL/C-T(U)

Other codes on the same units

L7 No master indoor unit
L8 Indoor power insufficient
P4 Compressor drive PFC protection
P5 Compressor phase overcurrent
P7 Inverter module temperature sensor fault
P8 Inverter module overheated
P9 Inverter compressor lost synchronism
U0 Compressor preheat not finished

Save it for the next call

Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.

Open the app

Source: 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.