BoilerFaultCodes.com

Vaillant Ecomax Pro 828E Fault Codes

Combi Natural Gas 28 kW 2001-2006 Discontinued

Replaced by: ecoTEC plus 831

All 5 fault codes

Code Severity Plain English
F.11 High Your boiler has detected that water isn't moving through the internal pipes correctly, causing it to shut down to prevent overheating.
F.12 High Your boiler has detected a internal blockage that is preventing water from flowing correctly and affecting the pressure.
F.13 High Your boiler has stopped working because the water pressure is too low, and it has shut down to prevent damage.
F.21 High Your boiler has stopped working because it cannot light the flame or keep it burning properly.
F.22 High Your boiler has stopped working because the water pressure is too low for it to operate safely.

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