Gree Error Code E1: High pressure protection (Heat Pump)
Gree error code E1 on a heat pump means: High pressure protection. It is also called Gree diagnostic code E1.
Homeowner? What Gree code E1 means for you
Call a technician Your heat pump is reporting: High pressure protection. 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 E1 mean?
The system tripped on high refrigerant pressure (on the GMV6 the high-pressure transducer reached about 609 psi). The compressor stops; in cooling the indoor fan keeps running, in heating the whole unit shuts down.
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))
Common causes of Gree code E1
- Overcharge of refrigerant
- Dirty coil, blocked filter or air path restricted at the indoor or outdoor unit
- Outdoor fan not running or running slow
A technician checks these and 2 other possible causes on site before replacing any part.
Gree models that use code E1
3VIR09HP115V1A3VIR09HP230V1A3VIR12HP115V1A3VIR12HP230V1A3VIR18HP230V1A3VIR24HP230V1A4LIV30HP230V1AH4LIV36HP230V1AHGMV-V36WL/C-T(U)GMV-V48WL/C-T(U)GMV-V60WL/C-T(U)MULTI18HP230V1COMULTI24HP230V1COSAP09HP230V1AHSAP12HP230V1AHSAP18HP230V1AHSAP24HP230V1AH
Other Gree Heat Pump codes
All Gree Heat Pump error codes →
Gree code E1: homeowner questions
What does Gree code E1 mean?
High pressure protection. The system tripped on high refrigerant pressure (on the GMV6 the high-pressure transducer reached about 609 psi). The compressor stops; in cooling the indoor fan keeps running, in heating the whole unit shuts down.
Is it safe to keep using my heat pump with code E1?
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 E1 myself?
You can try one reset (power off for 30 seconds, then on). If Gree code E1 comes back, the cause is still there and a licensed technician should check it.
Who can fix Gree code E1 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
- Compressor will not run - Gree ductless Gree · Heat Pump
- Louver will not swing - Gree ductless Gree · Heat Pump
- Noise or vibration - Gree ductless Gree · Heat Pump
- Outdoor fan will not run - Gree ductless Gree · Heat Pump
- Unit will not start - Gree ductless Gree · Heat Pump
- Water leaking from indoor unit - Gree ductless Gree · Heat Pump
- Weak cooling or heating - Gree ductless Gree · Heat Pump
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. 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.