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error Ebeco
Error Code E5
Internal sensor fault indicating failure of internal system components.
? What Causes This
Fault or malfunction in internal electronics responsible for temperature sensing and regulation.
✓ How to Fix It
1. Contact service technician to inspect internal hardware, replace defective module if needed.
Source: page 48 of the official manual
From the manual
This error code appears in:
Ebeco EB Therm 500 Floor Heating Thermostat