BoilerFaultCodesWorcester Bosch Greenstar HE 12/22 Fault Codes
RegularOil Oil 12-22 kW 2004-2012 Discontinued
Replaced by: Greenstar Danesmoor
This boiler uses indicator light combinations
Note which lights are on, off, or flashing and at what speed. Match the combination to the table below. Do not reset until you have noted the pattern. How to read fault codes →
Most common fault codes
Flue Gas Thermostat Reset Button Lock-out Indicator
Your boiler has shut down because the internal gases leaving the system have become too hot, triggering a safety switch to protect the plastic exhaust pipe from melting.
Gas Safe engineer required · £120-280
Your boiler has shut itself down for safety because it cannot successfully light or maintain a flame.
May be DIY safe · £100-350
All 2 fault codes
Worcester Bosch Greenstar HE 12/22 is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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