warning Haswill

Error Code EE

Sensor error — sensor connection issue or malfunction.

? What Causes This

Loose or faulty temperature sensor installation.

How to Fix It

Ensure the sensor is installed firmly or replace it. The display should return to normal in 10 seconds once fixed.

Source: page 63 of the official manual

From the manual

Manual page 63 — Haswill error EE

This error code appears in:

Haswill Stc 1000 Temperature Controller