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error Ebeco

Error Code E4

Open circuit in floor temperature sensor wiring.

? What Causes This

Breakage or looseness of the floor temperature sensor cables, connectors, or junction box connections.

How to Fix It

  1. Disconnect power and inspect wiring for breaks or loosened connections.
  2. Reconnect faulty sections and test operation.

Source: page 48 of the official manual

From the manual

Manual page 48 — Ebeco error E4

This error code appears in:

Ebeco EB Therm 500 Floor Heating Thermostat