Practical help for common problems
- No heating or hot water
- Pressure repeatedly dropping
- Boiler error codes
- Banging or kettling noises
- Radiators staying cold
- Leaks around the boiler
Common boiler problems
Faults can involve water pressure, controls, pumps, valves or the wider heating system. Note the make, model, error code and what changed before the fault appeared.
When to call for help
Seek qualified help when a reset does not resolve the problem, pressure keeps falling, water is leaking or the boiler makes unfamiliar noises. Do not remove the boiler casing.
Important gas safety note
Gas boiler work must be carried out by an appropriately qualified Gas Safe registered engineer. Check the engineer’s Gas Safe ID card and registration details before work begins. If you smell gas, follow the emergency instructions from the National Gas Emergency Service.
Boiler Repair Penarth FAQs
Who can repair a gas boiler?
Gas boiler work should only be undertaken by a suitably qualified Gas Safe registered engineer whose registration covers the work required.
Why does boiler pressure keep dropping?
Possible causes include a leak, expansion vessel issue or pressure relief fault. A qualified professional should diagnose repeated pressure loss.
Can I keep resetting my boiler?
Follow the manufacturer’s instructions, but repeated lockouts indicate an underlying fault that should be assessed.
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