Common Boiler Faults

Not all boiler issues need a full callout. Many problems display fault codes that can point directly to what’s wrong. Select your boiler brand below to view common error codes and what they usually mean.

Choose Your Boiler Brand

Vaillant

View common Vaillant boiler fault codes

Worcester Bosch

View common Worcester Bosch fault codes

Ideal

View common Ideal boiler fault codes

Baxi

View common Baxi boiler fault codes

Potterton

View common Potterton boiler fault codes

Glow-worm

View common Glow-worm boiler fault codes

Ariston

View common Ariston boiler fault codes

Alpha

View common Alpha boiler fault codes

Viessmann

View common Viessmann boiler fault codes