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Gree Error Code LC: Compressor failed to start (Heat Pump)

Updated · by Aurora Star Tech Inc.

Gree error code LC on a heat pump means: Compressor failed to start. It is also called Gree diagnostic code LC.

High severityHeat PumpGree Sapphire · Gree Livo GEN4 · Gree Vireo GEN3 · Gree Multi21+

Homeowner? What Gree code LC means for you

Call a technician Your heat pump is reporting: Compressor failed to start. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • In winter, keep snow and ice off and away from the outdoor unit. A short defrost cycle with steam is normal.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Gree error code LC mean?

The compressor did not start. Multi21+ shows it as Lc.

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)

Common causes of Gree code LC

  • Compressor stopped less than 3 min (pressures not balanced)
  • Compressor wiring loose or wrong sequence
  • Overcharge

A technician checks these and 2 other possible causes on site before replacing any part.

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Gree models that use code LC

3VIR09HP115V1A3VIR09HP230V1A3VIR12HP115V1A3VIR12HP230V1A3VIR18HP230V1A3VIR24HP230V1A4LIV30HP230V1AH4LIV36HP230V1AHMULTI18HP230V1COMULTI24HP230V1COSAP09HP230V1AHSAP12HP230V1AHSAP18HP230V1AHSAP24HP230V1AH

Other Gree Heat Pump codes

CodeMeaning
L6Mode conflict (24 V adapter systems)
L7No master indoor unit
L8Indoor power insufficient
L9Power protection
LAGroup control: indoor series mismatch
LbGroup control: units from different systems
LdCompressor phase loss
LJIndoor function DIP setting wrong
LPIndoor and outdoor units do not match
LUPG fan motor zero-crossing fault
oEUndefined outdoor unit error
P4Compressor drive PFC protection

All Gree Heat Pump error codes →

Gree code LC: homeowner questions

What does Gree code LC mean?

Compressor failed to start. The compressor did not start. Multi21+ shows it as Lc.

Is it safe to keep using my heat pump with code LC?

It depends on the cause. The heat pump has locked out or cannot run properly. One reset is fine; if the code comes back, it needs a licensed technician to find the cause.

Can I reset Gree code LC myself?

You can try one reset (power off for 30 seconds, then on). If Gree code LC comes back, the cause is still there and a licensed technician should check it.

Who can fix Gree code LC near me?

Aurora Star Tech Inc. repairs Gree heat pumps in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check · Heat Pump Not Heating or Blowing Cold Air

Troubleshooting guides

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. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency HVAC Service

647-657-2977