BoilerFaultCodesYour boiler is displaying standard status codes to show it is working normally or warming up, rather than indicating 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: operating mode codes
What causes this fault?
These codes appear because the boiler is communicating its current stage of operation, such as starting the fan or heating the water to the required temperature. They are triggered by normal requests for heating or hot water and do not indicate that anything has broken. Think of them as the boiler providing a live progress report on its internal sequence.
DIY fix possible
Check that your thermostat is set to the desired temperatureEnsure the gas and water supply valves are openMonitor the display to see if the code changes as the boiler completes its cycle
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 1 to 9, h, l, b — no call-out fees, no surprises.
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Remeha Quinta 115 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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