Vaillant ecoTec exclusive Green iQ combi boiler error codes

Code Meaning Vaillant ecoTec exclusive Green iQ combi boiler error codes F.00 Interruption: Flow sensor NTC plug not plugged in or has come loose, multiple plug on the PCB not plugged in correctly, interruption in cable harness, NTC defective F.01 Interruption: Return sensor F.02 Interruption: DHW outlet sensor F.03 Interruption: Cylinder sensor F.10 Short circuit: …

Vaillant ecoTec exclusive Green iQ combi boiler error codes Read More »