Hyco Accona - Troubleshooting; Error Codes Explained

6. Troubleshooting
Error codes and their meaning
E1 – Temperature sensor error
E3 – Overheat event
In the case of an E3 Overheat event the heater will beep until any button is
pressed to clear the fault. The cause of the overheat should be investigated
before continuing to use the heater.
14