BoilerFaultCodes
Warmworld Boiler Fault Codes
26 fault codes across 4 Warmworld boiler models — explained in plain English.
Warmworld domestic boilers.
Warmworld fault codes on this site
We document 26 fault codes across 4 Warmworld models, covering 13 distinct codes. Warmworld boilers use plain numeric codes such as 10, 12, 14. Codes for 4 of these models are taken directly from the manufacturer's own service or installation manual. Warmworld is a smaller name in the UK market, and if you own one this is likely one of the few places its fault codes are collected in one place.
Models covered: FFC 30/60, Combi, HE 70/80, FFC 65/80.
Codes that appear on the most Warmworld models:
Just want the most common Warmworld problems?
The top 8 faults across the whole Warmworld range — causes, DIY checks, repair costs.
High-severity Warmworld fault codes
Phase reversed neon Lockout lamp Blocked condensate pipework 10 12
Your boiler has detected that the electrical wiring coming from your home's power supply is connected back-to-front, which is preventing the system from starting up safely.
FFC 30/60
Your boiler has switched itself off because it has become too hot or there isn't enough water moving through the system.
FFC 30/60
Your boiler has switched itself off because the waste water pipe that carries away condensation is blocked or frozen, causing water to back up inside the unit.
FFC 30/60
Your boiler has detected an issue with the heat output control, meaning it has temporarily shut down to prevent overheating or inefficient operation.
FFC 30/60
Your boiler has detected an issue with the heat output control system and has shut down to prevent potential damage.
FFC 30/60
All models
4 Warmworld boiler models
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