Low
5 on Vaillant ecoMAX 824E

Your boiler is currently busy heating your hot water taps or shower, which is a normal operation rather than an error.

Monitor it

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.

What the manual says

Manufacturer manual

Boiler operating in DHW mode

From this model's manual
Verified against the Vaillant/Vaillant Ecomax 824e installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Avoid the next call-out bill

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Related fault codes

All 26 fault codes on the ecoMAX 824E

Seeing a different code? Every code this model can display, in one place.

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