What the manual says
Manufacturer manualNo Heating demand from external controls 230V
Shared across the Flexicom 24c / 28c 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
Check your room thermostat or smart heating controller and turn the target temperature up higher than the current room temperature.Check if your thermostat is currently in a scheduled 'off' or 'away' mode.Replace the batteries in your room thermostat if it is wireless.
Find a Gas Safe engineer
Search the official register →
Boiler cover options
Avoid the next call-out bill
A cover plan would handle faults like S.30: no call-out fees, no surprise bills.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.
Related fault codes
All 141 fault codes on the Flexicom 24c / 28c
Seeing a different code? Every code this model can display, in one place.
d.00d.01d.02d.05d.06d.08d.09d.10d.11d.13d.14d.15d.16d.17d.18d.20d.21d.22d.23d.27d.28d.33d.34d.35d.36d.39d.40d.41d.43d.45d.47d.50d.51d.58d.60d.61d.62d.64d.65d.67d.68d.69d.71d.80d.81d.82d.83d.85d.88d.90d.93d.94d.96F.00F.01F.10F.11F.13F.20F.22F.23F.24F.25F.27F.28F.29F.32F.33F.46F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.76F.77F.78F.83F.84F.85F.86F.87F.88F.89F.97F01F10F11F13F17F20F22F25S.00S.01S.02S.03S.04S.05S.06S.07S.08S.10S.11S.13S.14S.15S.16S.17S.20S.21S.23S.24S.25S.26S.27S.28S.31S.32S.34S.39S.41S.42S.46S.53S.54S.58S.76S.88S.91S.96S.98