BoilerFaultCodesYour boiler has stopped working because the water pressure is too low for it to run safely.
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/Water pressure switch fault
What causes this fault?
This fault occurs when the system loses the physical water pressure required to push heat around your radiators and protect the internal components from overheating. The most common reason is a slow leak somewhere in your central heating pipework or radiators, though it can also happen if you have recently bled your radiators without topping the water back up.
This fault is more common in autumn when homeowners turn their heating back on for the first time, as dormant seals may have shrunk or developed small leaks over the summer.
DIY fix possible
Locate the filling loop (usually a silver flexible hose) underneath your boiler.Slowly open the small valves on the hose until you hear water flowing.Watch the pressure gauge and close the valves once the needle reaches between 1.0 and 1.5 bar.
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 04 — no call-out fees, no surprises.
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Vokera Mynute 28E / 35E 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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