Vaillant ecoTEC Plus Combi F.194 – The power supply unit for the PCB is defective. | BoilerTool

Home / ecoTEC Plus Combi / F.194

F.194

The power supply unit for the PCB is defective.

Vaillant ecoTEC Plus Combi

Possible cause

Power supply unit for the PCB is defective

Measure

Replace the PCB.

This code also applies to:

ecoTEC Plus System

Source: Manufacturer manual (PDF)

© 2026 BoilerTool