Medium
05 on Ariston Egis 24 MFFI

Your boiler has detected that the water inside the pump is getting too cold and has temporarily locked out to prevent the system from freezing.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Pump anti-freeze

From this model's manual
Verified against the Ariston/Ariston Bravo 24 Mffi 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

Ensure your heating is switched on so the boiler can run the pump and warm the system.Check that external condensate pipes or exposed pipes are not frozen.Reset the boiler using the reset button to see if normal operation resumes.

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Related fault codes

01View →02View →03View →04View →

All 39 fault codes on the Egis 24 MFFI

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

06A 01A 03A 36A 37A 39A 40A 41A03E 02E 04E 05E 06E 07E 08E 11E 12E 13E 14E 15E 16E 18E 20E 22E 23E 25E 26E 27E 29E 30E 33E 34E 35E 36E 37E 38E02E04

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