BoilerFaultCodesWhat the manual says
Manufacturer manualButton fault — verify all control buttons function; check PCB
Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Carefully press and release every button on the control panel to see if any are physically stuck or jammed in.Wipe the control panel with a dry, clean cloth to remove any grease or debris that may be holding a button down.Restart the boiler using the main power switch to see if the error clears.
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Related fault codes
All 78 fault codes on the Dewy 30/130 HE FS
Seeing a different code? Every code this model can display, in one place.
30515253545556575859606162636465666980859095100105120125130140160175180AL 01AL 02AL 03AL 04AL 05AL 06AL 07AL 08AL 09AL 10AL 11AL 12AL 13AL 14AL 15AL 17AL 18AL 28AL 30AL 37AL 40AL 41AL 43AL 44AL 56AL 57AL 62AL 72AL 74AL 77AL 78AL 79AL 80AL 81AL 82AL 83AL 84AL 88AL 89AL 90AL 92AL 93AL 95AL 96AL 98AL 99