Boiler Malfunctions in the Colder Months: What to Look Out for and How to Fix Them

Autumn’s arrival brings cooler temperatures, and as you reach for that thermostat to turn on your boiler, the last thing you want is for it to malfunction. Boiler issues can be a real headache, but fear not! In this guide, we’ll discuss common boiler malfunctions in autumn, what signs to look out for, and how to fix them, ensuring your home stays warm and cosy throughout the season.

Common Boiler Malfunctions

Low Pressure: As the weather gets colder, you might notice your boiler’s pressure dropping. This can result in reduced heating efficiency and, in some cases, complete shutdown. To fix this issue, consult your boiler’s manual for instructions on how to repressurize it. If you’re unsure, it’s best to call a professional.

Strange Noises: Unusual clanking, gurgling, or banging sounds coming from your boiler can be alarming. These noises often indicate trapped air or mineral deposits in the system. Bleeding your radiators and scheduling a professional flush can help resolve these issues.

Pilot Light Problems: If your boiler’s pilot light keeps going out, it’s a sign of poor ignition or a faulty thermocouple. Consult your boiler’s manual for relighting instructions, but if it continues to extinguish, it’s time to call a heating engineer.

Leaking or Dripping: Leaks or drips around your boiler can be a serious issue. It may be a damaged seal, valve, or pressure relief valve. In such cases, immediately shut off the boiler and contact a professional to prevent further damage or safety hazards.

No Heating or Hot Water: This is one of the most common complaints during autumn. A lack of heating and hot water can result from various issues, including a faulty thermostat, airlocks, or a malfunctioning motorized valve. Troubleshoot by checking the thermostat settings and bleeding radiators, but for more complex issues, seek professional help.

How to Fix Malfunctions

While some boiler malfunctions can be tackled or investigated by homeowners, it’s crucial to know your limits and when to call a heating engineer. Here are some basic troubleshooting steps:

  1. Check the Thermostat: Ensure the thermostat is set to your desired temperature. Sometimes, the issue is as simple as adjusting the settings.
  2. Bleed Radiators: Trapped air in radiators can lead to cold spots. Use a radiator key to bleed the air until water flows evenly.
  3. Inspect the Pressure Gauge: If the pressure is too low, consult your boiler manual to repressurize it. If it’s too high, release excess pressure through the relief valve.
  4. Check for Frozen Pipes: In extremely cold weather, pipes leading to your boiler can freeze. Warm them gently with a hot water bottle or a cloth soaked in hot water.
  5. Reset the Boiler: Some modern boilers have a reset button. If your boiler stops working, try resetting it before calling a professional.

For more complex issues or if you’re unsure about any of these steps, it’s best to seek professional help. A certified heating engineer can diagnose and repair the problem safely.

Boiler malfunctions in autumn can be inconvenient, but with a little knowledge and some troubleshooting, you can often resolve minor issues yourself. However, when in doubt, don’t hesitate to call a professional heating engineer to ensure the safety and efficiency of your heating system. Stay warm and comfortable throughout the season, and enjoy all the cosiness that autumn has to offer.




Need help with something? Message us below.

× Message us at Newtons