BoilerFaultCodesYour boiler is currently running at a very high heat setting, which is normal operation and not 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: Boiler operating, high flow temperature selected.
What causes this fault?
This code appears when the boiler is working exactly as it should to meet a high demand for heat. It signifies that the thermostat or temperature dial is set to its maximum level, causing the boiler to run at its highest output. You will see this most often when first turning the heating on to warm up a cold house quickly.
This status is more common during the winter months when the outside temperature drops and the boiler needs to work at full capacity to keep your home warm.
DIY fix possible
Check the temperature control knob on the boiler panelTurn the temperature dial down slightly if the radiators feel too hotMonitor the display to see if the 'H' disappears as the temperature stabilizes
Find a Gas Safe engineer
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A boiler cover plan would cover faults like H — no call-out fees, no surprises.
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Potterton Envoy 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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