Gree Air Conditioner E1 Error Code

High pressure protection on Gree air conditioners.

Moderate DIY

Pressure on the high side of the refrigerant system got too high and the protection switch stopped the compressor. GREE names dirty coils, restrictions in the system, and overcharging as typical causes.

Compatible models

GREE lists E1 in its US code FAQ, which covers its residential mini-splits (single-zone, multi-zone and ducted) without naming specific models.

Also shown as

GREE also lists a lowercase e1 for a pressure transducer fault, which is a different problem. Read the display carefully.

Difficulty

Start with the safe checks below; a worn part may need replacing.

How to fix
When to call a pro
Parts
FAQ

Not sure you are reading the code right? See how to read Gree air conditioner codes.

Safety first: unplug the air conditioner (or switch off its breaker) before touching filters, hoses or panels. If you smell burning or gas, or see water near the outlet, stop and call a professional.

How to fix Gree E1

Clean the indoor filters
Turn the system off, open the front panel, and slide out the mesh filters. Rinse them, let them dry, and put them back.
Clear the outdoor coil with power off
Switch off the outdoor disconnect or breaker. Remove leaves and debris, then gently hose the coil from the outside. Keep about 2 ft (60 cm) clear around the unit.
Run it on a hot afternoon
Once power is back, run cooling during the warmest part of the day and note whether E1 comes back. Timing helps the technician.

When to call a technician

If E1 comes back with clean filters and a clean outdoor coil, a technician needs to check the fans, the high-pressure switch, and the refrigerant charge.

Parts linked to E1

These are the parts most often behind this code. Tap one to see what it does and the signs it is failing.

Order parts by your full model number so they fit.

Frequently asked questions

Which Gree models show the E1 code?

GREE lists E1 in its US code FAQ, which covers its residential mini-splits (single-zone, multi-zone and ducted) without naming specific models.

Can I fix Gree E1 myself?

Often. The first steps above are safe checks a homeowner can do. If they don't clear E1, the cause is likely a worn part that needs replacing.

Other Gree air conditioner codes

Last reviewed 2026-10-19. Codes and steps can vary by model; check your owner's manual.

Sources we checked