What the manual says
Manufacturer manualAnomaly inside electronic board / gas valve timeout without flame — check gas valve and PCB; contact Technical Assistance
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.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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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 42AL 43AL 56AL 57AL 62AL 72AL 74AL 77AL 78AL 79AL 80AL 81AL 82AL 83AL 84AL 88AL 89AL 90AL 92AL 93AL 95AL 96AL 98AL 99