Common Boiler Problems and How to Fix Them

Boilers are essential for maintaining a comfortable living environment, particularly during the colder months. However, they can sometimes run into problems that require attention. Below, we’ll explore some common boiler issues and provide practical tips to help you resolve them.

Contact us at 07834 168464 or 01904 373075 for boiler servicing in York.

common boiler problems york

1. No Heat or Hot Water

One of the most frustrating issues is when your boiler fails to provide heat or hot water. This could be due to a variety of reasons, including low water pressure, issues with the thermostat, or a broken diaphragm.

How to Fix It:

  • Check the thermostat: Ensure it’s set to the correct temperature. If it’s not responding, try replacing the batteries or resetting it.
  • Check the pressure gauge: The ideal pressure should be between 1 and 2 bars. If it’s lower, you’ll need to repressurise your boiler. Most modern boilers have a filling loop that allows you to do this.
  • Call a professional: If the problem persists, it’s advisable to contact an engineer to inspect the diaphragm or other internal components.

2. Leaking Boiler

A leaking boiler can be caused by several factors, including a faulty pump seal, corrosion, or high pressure. Ignoring this issue could lead to more serious damage, so it’s important to address it quickly.

How to Fix It:

  • Inspect the source of the leak: Look for visible signs of corrosion or damage around the pipes or components. If it’s a small leak, you might be able to tighten the fittings.
  • Reduce the pressure: High pressure can cause leaks, so check the pressure gauge and release any excess pressure if necessary.
  • Seek professional help: If the leak persists or worsens, it’s best to get a qualified engineer to resolve the issue, as the problem could be more serious than it appears.

3. Kettling

Kettling occurs when limescale builds up on the boiler’s heat exchanger, restricting the flow of water. This can cause the boiler to make a loud banging or whistling noise, similar to a kettle boiling.

How to Fix It:

  • Power flush: A power flush can remove the limescale and sludge buildup in your system. This should ideally be done by a professional.
  • Install a magnetic filter: To prevent future limescale buildup, consider installing a magnetic filter. This helps to trap the particles before they cause damage.

4. Pilot Light Going Out

If the pilot light keeps going out, it could be due to a broken thermocouple, draughts blowing the flame out, or a buildup of deposits. 

How to Fix It:

  • Check for draughts: Ensure that no draughts are affecting the pilot light.
  • Clean the pilot light: Dirt and debris can block the gas flow, so a gentle cleaning might help.
  • Replace the thermocouple: If the light still goes out, you may need a new thermocouple, which requires professional assistance.

Contact Us for Boiler Service in York

 By addressing these common boiler problems promptly, you can maintain the efficiency and longevity of your heating system, ensuring warmth and comfort throughout the year.

For boiler installers in York for all your boiler needs, contact us today at 07834 168464 or 01904 373075 or use our contact form to get started.