BoilerFaultCodesYour boiler is currently working as it should to heat up your hot water tank.
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: Pump and fan running (hot water operation)
What causes this fault?
This is actually not a fault, but a status code informing you that the boiler is currently busy heating your hot water cylinder. It occurs when the system's sensors detect that the water in your tank has cooled down and the boiler has fired up specifically to replenish that heat.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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 S.11 — no call-out fees, no surprises.
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Vaillant Ecomax 613 2 E 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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