Blog>Questions>Why is my Worcester boiler's blue light flashing?
Last updated: 18 October 2023
Why is my Worcester boiler's blue light flashing?
Why is Worcester boiler blue light flashing?
In this article you'll find:
A flashing blue light on your Worcester boiler means that there is a fault with the system.
The first thing to do is try to identify the fault to see how it can be fixed.
How can I check for problems with a Worcester boiler?
When you switch on your boiler, if a flashing blue light appears after around 30 seconds, this means that a fault has been identified.
Some things you can try to fix the problem include:
Reset your boiler
Check the pressure gauge (ideal pressure is between 1 and 1.3)
Check to see if the fan is spinning
If none of these suggestions help, it’s time to contact a qualified Gas Safe boiler engineer.
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What causes a Worcester boiler blue light to flash?
A Worcester boiler’s blue light will usually flash for one of three reasons.
1. Problems with gas supply
This is the most likely cause for a blue flashing light. It could indicate a faulty gas valve, or any problem associated with the gas supply.
For any gas supply problems, you will need to contact a Gas Safe engineer.
2. Flue blockages
If your boiler’s flue is blocked or damaged it can cause the blue light to flash.
A qualified boiler engineer will be able to replace your flue and get your system working again.
3. Blocked condensate pipe
Condensate pipes can sometimes become blocked by a build up of debris on the system. A boiler engineer will be able to flush out the system to fix the problem.
In colder months when the temperature drops below zero, the condensate pipe may become frozen. Again, a boiler engineer will easily be able to fix the problem.
The importance of working with a Gas Safe engineer
While some jobs can be completed by a confident DIYer, problems with your boiler must always be assessed by a fully qualified Gas Safe engineer.
At Checkatrade, we have skilled and experienced Gas Safe boiler engineers located in your area.
All you have to do is enter your postcode in the box below to find the best Gas Safe engineers near to you.
See the tradespeople we've checked and recommend for your job
See the tradespeople we've checked and recommend for your job