Brand > Type > Error code > E.04.08

Error code:

E.04.08

Cause

Security entrance is open

Air pressure differential switch activated:

(1) Bad connection:

check the wiring and connectors

(2) Pressure in the flue gas duct is or has been too high:

Check valve does not open

Clogged or empty siphon

Check air supply and flue gas discharge for blockages

Check heat exchanger for contamination