Glow-Worm Boiler Error Codes / Fault Codes

What are the Glow-Worm Boiler Fault Codes? We have a complete list of Glow-Worm boiler error/fault codes, for every boiler.

Glow-worm is a British boiler brand with more than 75 years of experience in the heating business. Glow-worm state that they are committed to providing ‘top quality, reliability, and exceptional durability.’

Whilst reading this, you may be a little unsure about whether you agree with this claim. However, the aim of this blog is to help to identify the issues your boiler may be having, with a list of all error/fault codes with Glow-worm boilers, to help you feel a little less stressed about your boiler. 

If you suspect an issue with your Glow-worm boiler, we have provided a list of their fault/error codes that could help you to identify the issue and potentially point it out to your Gas Safe Engineer.

Glow-worm has several different gas boiler ranges that encompass all different types and sizes of boilers including combi boilers, system boilers, and regular heat-only boilers.

Originally producing boilers back in 1934 at the Derwent Foundry in Derbyshire, Glow-worm, for the past 80 years state that they have been focused on offering their customers, reliable and highly efficient products.

They also claim that “it has been the drive which has led us right to the top as one of the leading heating manufacturers in the UK”. 

In 2001 Glow-worm became a part of the Vaillant Group, Europe’s second-largest heating company.

Vaillant employs over 12,000 people across Europe and China, providing innovative heating, ventilation, and air-conditioning technologies to hundreds and thousands of homes all over the world. 

If you’d like to find out more about Glow-worm, please feel free to explore their heritage.

In the 2020 Which? Best Buy annual survey, 7,500 boiler owners and 153 Which? Trusted Trader engineers were asked to give their options on Glow-worm boilers. They were asked to rate the boilers on;

Looking at the Trustpilot reviews for Glow-worm, they have 4.7 stars out of 5 and over 5k reviews.  A whopping 96% of their reviews are above average, which also supports that their customers are happy with their boilers and their performance. 

Here are only a few of the Trustpilot reviews for Glow-worm: 

“Excellent service. Extremely well installed and unfailing in delivering warmth and comfort during the winter. Impressive.”

“Our new boiler is excellent, very efficient and quiet, the fitter who we have used for many years, made a prompt replacement to our old boiler and was very quick and clean.”

“Boiler replacement conducted most professionally with the minimum of fuss and all to the advised timescale. The contractor kept me fully updated at all stages.”

Despite having some great reviews and ratings, I guess you’re still reading this hoping to identify your boiler’s issues. Below we have attached all the Glow-worm boiler error and fault codes to help you find the issue and raise it with your Gas Safe Engineer.