Glow-worm Flexicom fault S.36
No heating demand from external controls 24V
Gas boilerWhat it means
No heating demand is being received from external controls operating at 24V.
Likely causes
- Wiring fault in external controller
- Wiring fault at Installer Interface
Where to start
- Check wiring in external controller
- Check wiring at Installer Interface
The full answer, free
- How to put it right, step by step
- The manual page for this fault (page 38), right under the answer
Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.
From the Glow-worm manual for the Flexicom. Check the model on the data plate before you order parts.
Other Glow-worm Flexicom fault codes
- F1Boiler has attempted to light 5 times and failed on all occasions
- F14Gas valve control defective
- F4Flame goes out whilst lit during a demand
- F77Condensate pump error (option)
- S.30No heating demand from external controls 230V
- S.97Water pressure sensor check is running, demand (DHW or heating) is blocked