Low
OT ERROR on Remeha Selecta

Your boiler's wall controller is currently overriding normal settings because the built-in frost protection has kicked in to prevent your pipes from freezing during cold weather.

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

Celcia 20 control override due to frost thermostat call for heat

From this model's manual
Verified against the Remeha/Remeha Avanta 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.

DIY fix possible

Check if the weather outside is particularly freezing, as this is a normal protective feature.Wait for the temperature to rise, at which point the message should clear on its own.Check your Celcia 20 room thermostat settings to ensure the frost protection temperature isn't set too high.

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All 22 fault codes on the Selecta

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

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