Your boiler is currently waiting for a demand for heating or hot water and is not experiencing a fault.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Led OK (green)
What causes this fault?
This status occurs because the boiler is in its normal standby mode, having successfully reached the required temperature or completed its previous task. It is simply waiting for your thermostat to click on or for a hot water tap to be opened before it starts firing again. There is no physical fault or blockage preventing the system from working.
This code is more visible during summer months when your central heating is turned off and the boiler spends most of the day in standby mode.
DIY fix possible
Check that your room thermostat is turned up higher than the current room temperatureEnsure your programmer or heating timer is switched to an 'On' periodVerify that the boiler selector switch is set to the correct mode for heating or hot water
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like L1 — 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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