Boiler Fan Replacement

What boiler fan replacement covers

Boiler fan replacement is a targeted repair designed to restore safe airflow and correct combustion. The service typically includes:

• Fault-finding using fault codes, readings and component tests.
• Confirmation that the fan is the cause, not wiring, PCB, pressure switch, or flue issues.
• Supply and fitting of the correct manufacturer-approved fan (where available).
• Inspection of related seals, connections and the flue route around the appliance.
• Safe reassembly, operational testing and performance checks.
• Clear explanation of what failed and what was done to fix it.

When this service is most useful

This service is a good fit if your boiler:

• Displays a fan-related fault code or keeps going to lockout.
• Makes unusual whirring, grinding, or rattling noises on start-up.
• Tries to ignite but fails, or starts and then cuts out.
• Works intermittently, especially in colder weather.

If you smell gas or suspect fumes, stop using the appliance and seek urgent help.

What to expect on the day

The engineer will isolate the appliance, carry out diagnostic checks, and confirm whether the fan has failed or if another fault is causing the same symptoms. If a replacement is needed, the correct fan is fitted and the boiler is tested to confirm safe operation and stable performance. All work on gas appliances is completed by a Gas Safe registered engineer.

After the repair

You will be advised on any next steps if other worn components are identified during testing. If you want to reduce the risk of repeat breakdowns, a routine boiler service can help spot early signs of wear and keep performance consistent.