Vaillant ecoTEC Plus vs ecoTEC Pro: Key Differences
ecoTEC plus or ecoTEC pro? We compare Vaillant's two combi ranges on hot water flow, minimum output, controls and guarantee, and explain which suits a flat, a family home or a bigger house.
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Vaillant F75 Error: Pump and Pressure Sensor Fault Explained
F75 on a Vaillant ecoTEC means the boiler started its pump but saw no pressure change. What that test is, why air or low pressure can trigger it, and why most F75 repairs need an engineer.
Vaillant F22 Error Code: Low Water Pressure and Dry Fire Protection
Seeing F22 on your Vaillant ecoTEC? It is the low water pressure code. Here is what the gauge reading tells you, when you can top up yourself, and why F22 coming back means a fault to fix.
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