F28 fault code on Vaillant ecotec boilers

F28 fault code (F.28) – Vaillant Ecotec Boilers

The F28 fault code references a boiler lockout. It happens when the boiler cannot detect a flame inside the boiler. The boiler will attempt to light 3 times. If it detects no gas, the boiler will display this code until it is manually reset. This blog explains what is wrong and how to fix the […]

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