BoilerFaultCodesYour boiler is getting too hot inside, which has triggered a safety shutdown to prevent damage to the system.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Central heating sensor is overheating
What causes this fault?
This fault occurs when the water temperature within the boiler's heat exchanger rises too high or too quickly, triggering the safety sensor to shut down the system. The most common reasons are a faulty temp sensor giving a false reading, a pump failure that stops water from moving, or a blockage caused by sludge and limescale buildup.
This issue often appears in autumn when the heating is turned back on for the first time, as pump parts can seize up after being idle through the summer.
DIY fix possible
Check that your radiator valves are fully openEnsure your system pressure is between 1.0 and 1.5 barTurn the boiler off and on again (Reset) to see if the fault clears
Find a Gas Safe engineer
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like 06E — no call-out fees, no surprises.
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Ravenheat HE 80/90 / HE 25-30s / HE 80-98s / HE 8-98s / HE 25-30s compact 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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