Boiler Error Codes

Viessmann F2 Error / Fault Code – Cause & Fix

F2 is a common error code on Viessmann Vitodens boilers and indicates that the burner has been locked out. Viessmann Vitodens Fault Code System Behaviour F2 Burner lockout When older Viessmann boilers experience the same issue, they might display one of the following error codes instead: E1, E7, E8, E9, EA, EB, EC. The burner …

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Ariston Boiler Error Codes

The Ariston range of powerful but small boilers are normally extremely reliable. Occasionally some things can go wrong; that’s why we’ve created our handy at-a-glance table of Ariston error codes below. Ariston Error Codes Fault Code Boiler Model Possible Cause Central Heating Circuit 101 All Boilers Overheat 102 E-Combi EvoE-System EvoClas He Evo (Combi and …

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Glow-worm Boiler Error Codes

Glow-worm Boiler Error Codes Boiler Model Fault Code Cause of Problem Betacom Red LED on Lockout – low water pressure (increase pressure to 1.5bar) and reset boiler Betacom Red LED flashing Overheat – check both overheat stats Betacom Yellow LED flashing Turn domestic hot water (DHW) control knob into temperature range and turn central heating (CH) temperature …

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