What to Do If You Have A Broken Boiler: A Homeowner’s Guide

A broken boiler can be a nightmare, especially during the colder months. If you suddenly find yourself without heating or hot water, don’t panic. Here’s a step-by-step guide to help you identify the issue, take appropriate action, and get your boiler up and running again.

Common Signs of a Broken Boiler

1. No Heating or Hot Water – This is the most obvious sign that you have a broken boiler.
2. Strange Noises – Banging, whistling, or gurgling sounds could indicate trapped air, limescale buildup, or a faulty pump.
3. Leaks and Drips – Water leaking from your broken boiler could be due to a broken internal component.
4. Low Boiler Pressure – If the pressure gauge reads below 1 bar, your boiler may need repressurizing.
5. Pilot Light Issues – If the pilot light keeps going out, there could be a problem with the gas supply or thermocouple.
6. Unusual Smells – A faint burning smell might indicate overheating components, while a gas smell could be a serious safety hazard.

Immediate Steps to Take 

1. Check the Power Supply – Ensure your boiler is switched on and hasn’t tripped the circuit breaker.
2. Inspect the Thermostat – Make sure it’s set to the correct temperature and hasn’t been accidentally adjusted.
3. Check Boiler Pressure – If it’s too low, follow your boiler manual’s instructions to repressurize it.
4. Reset the Boiler – Many modern boilers have a reset button. Try resetting and see if the issue resolves.
5. Look for Error Codes – If your broken boiler displays an error code, refer to the manual or the manufacturer’s website to diagnose the problem.
6. Turn Off the Gas Supply If Necessary – If you smell gas, turn off the gas supply immediately and contact a Gas Safe registered engineer.

When to Call a Professional

While minor issues like low pressure can sometimes be fixed yourself, certain problems require professional attention. Contact a Gas Safe registered engineer if:

• The boiler is leaking water or gas.
• There are electrical faults or constant error codes.
• You hear loud banging or persistent unusual noises.
• The boiler repeatedly shuts down.

How to Prevent Future Boiler Breakdowns

• Schedule Regular Servicing – An annual boiler service can help catch potential issues early.
• Bleed Your Radiators – Removing trapped air improves efficiency and prevents pressure problems.
• Monitor Boiler Pressure – Keep an eye on the pressure gauge to avoid sudden breakdowns.
• Check for Leaks – Address minor leaks before they become serious problems.
• Insulate Pipes – Prevent pipes from freezing in winter to avoid potential damage.

Need Help with a Broken Boiler?

If you’re in Lincoln or the surrounding areas, J & S Plumbing and Heating is here to help. Our Gas Safe registered engineers provide fast, reliable, and affordable boiler repairs. Contact us today to book an appointment and get your home warm again in no time!

For professional boiler repair and servicing, call us at 01522708208 or book online jasplumbingandheating.co.uk/book-a-plumber-lincoln