Your boiler has detected that the water pressure inside the system is currently too low to operate safely, causing it to shut down to prevent damage.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: External safety interlocking tripped (e.g. low water pressure)
DIY fix possible
Locate the filling loop (usually a silver braided hose with one or two valves) connected to the boiler pipes.Gradually open the valve(s) to allow mains water into the system until the pressure gauge reads between 1.0 and 1.5 bar.Close the valve(s) tightly and restart your boiler.
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E10 — no call-out fees, no surprises.
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Remeha Quinta 85 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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