BoilerTool
Home
/
ecoTEC Pro 28 Combi
/
F.65
F.65
Fault: Electronics temp.
Vaillant ecoTEC Pro 28 Combi
Possible cause
Electronics defective or too hot due to external influences
Measure
1. Check: PCB. 2. If required, reduce the environmental temperature.
This code also applies to:
ecoTEC Pro 24 Combi
ecoTEC Pro 30 Combi
Source:
Manufacturer manual (PDF)
© 2026 BoilerTool