Your boiler has stopped working because it cannot detect enough water circulating inside 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: Low water pressure or no water flow
DIY fix possible
Locate the filling loop (usually a silver braided hose with one or two valves) connected to the boiler pipework.Slowly open the valve(s) to allow water to enter the system while watching the pressure gauge on the front of the boiler.Fill until the needle sits in the green zone, typically between 1.0 and 1.5 bar, then tightly close the valve(s).
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Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like b26 — no call-out fees, no surprises.
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Remeha Quinta 30 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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