Gree E2 fault code

What it means

Indoor coil freeze protection

The indoor coil has fallen cold enough to risk icing and the unit has protected itself. On a refrigeration circuit this is an airflow or charge question.

UK models this code applies to

From the Gree service literature we hold (Gree (Zhuhai) Service Manual, Bora Inverter R32 §9.1 Error Code List) — not a scraped list.

Now the harder half: proving what caused it

E2 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.