BoilerFaultCodesYour boiler has shut down because it thinks the water returning to the unit is dangerously hot, which usually means water isn't circulating properly through your radiators.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: The boiler return temperature sensor has measured a temperature higher than 95°c
What causes this fault?
This fault occurs when the water coming back into the boiler is too hot, causing the system to shut down for safety. The most common reason is a lack of water flow, often caused by a failing pump or a blockage in the pipework that prevents heat from escaping to your radiators. If the water cannot move, it stays inside the boiler and quickly overheats.
This fault is more frequent when you first turn your heating back on in autumn, as pumps can seize up after being idle over the summer months.
DIY fix possible
Check that all radiator valves are fully openEnsure the boiler pressure gauge is between 1 and 1.5 barCheck that the external pump (if visible) is running and not stuck
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A boiler cover plan would cover faults like E9285 — no call-out fees, no surprises.
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Worcester Bosch GB162 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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