What does the Glow-worm d.08 fault code mean?

Your boiler is currently waiting for a signal from your wall-mounted room thermostat to tell it that it needs to turn on the heating.

How much does it cost to fix Glow-worm error code d.08?

Cost varies. Contact a Gas Safe registered engineer for a quote.

Glow-worm d.08 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Status of the 230V room thermostat

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 is set to a higher temperature than the current room temperature.Ensure the thermostat display is active and has fresh batteries if applicable.Ensure your heating programmer or timer is set to the 'On' position.

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Related fault codes

d.00View →d.01View →

All 141 fault codes on the Flexicom 24c / 28c

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

d.00 d.01 d.02 d.05 d.06 d.09 d.10 d.11 d.13 d.14 d.15 d.16 d.17 d.18 d.20 d.21 d.22 d.23 d.27 d.28 d.33 d.34 d.35 d.36 d.39 d.40 d.41 d.43 d.45 d.47 d.50 d.51 d.58 d.60 d.61 d.62 d.64 d.65 d.67 d.68 d.69 d.71 d.80 d.81 d.82 d.83 d.85 d.88 d.90 d.93 d.94 d.96 F.00 F.01 F.10 F.11 F.13 F.20 F.22 F.23 F.24 F.25 F.27 F.28 F.29 F.32 F.33 F.46 F.49 F.61 F.62 F.63 F.64 F.65 F.67 F.68 F.70 F.71 F.72 F.73 F.74 F.76 F.77 F.78 F.83 F.84 F.85 F.86 F.87 F.88 F.89 F.97 F01 F10 F11 F13 F17 F20 F22 F25 S.00 S.01 S.02 S.03 S.04 S.05 S.06 S.07 S.08 S.10 S.11 S.13 S.14 S.15 S.16 S.17 S.20 S.21 S.23 S.24 S.25 S.26 S.27 S.28 S.30 S.31 S.32 S.34 S.39 S.41 S.42 S.46 S.53 S.54 S.58 S.76 S.88 S.91 S.96 S.98

Your boiler is currently waiting for a signal from your wall-mounted room thermostat to tell it that it needs to turn on the heating.

What the manual says

DIY fix possible

Avoid the next call-out bill

Related fault codes

All 141 fault codes on the Flexicom 24c / 28c

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