HVACopediaGree · Heat pump
E2 Indoor coil freeze protection (status)
What the control is telling you
Not a fault. The indoor coil got too cold in cooling/dry, so the unit is temporarily protecting the evaporator from icing.
Applies to: Gree Sapphire 9-24k (SAP..HP230V1A), Livo GEN4 30-36k (4LIV..HP230V1A), Vireo GEN3 9-24k (3VIR..HP115/230V1A)
Likely causes
- Low indoor airflow (dirty filter, low fan speed)
- Low room load or very low setpoint
- Low refrigerant charge
Test and repair steps
- Clean the filter and check the indoor fan speed setting.
- Make sure supply and return air are not blocked.
- If it shows often, check the charge and coil temperature with gauges.
Models that show this code
12 models in Gree Sapphire, Gree Livo GEN4, Gree Vireo GEN3
Other codes on the same units
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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. 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.