BoilerFaultCodes Complaints of noise High
Your boiler is making unusual noises because of trapped air, poor water circulation, or potential issues with the gas control components.
Call an engineer soon
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: 1. Over-gassed. 2. Air in system. 3. Boiler thermostat wrongly set or faulty. 4. Water section spindle sticking. 5. Gas valve sticking open. 6. Dirt/swarf on gas valve facing. 7. Insufficient water flow. 8. Pump noise or vibrating. 9. Heat exchanger partially blocked.
Typical repair cost £150-350 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
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Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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