If your home’s heating suddenly feels weaker than usual or your radiators aren’t warming up properly, low boiler pressure could be the reason. This is a common issue, especially during colder months, and one that shouldn’t be ignored. Fortunately, Bolton Services offers expert boiler services in Asheville and Weaverville, NC — ready to restore your comfort quickly and safely.
Here’s what you need to know about boiler pressure, what causes it to drop, how you might fix it, and when to call in a professional.
What Is Low Boiler Pressure?
Boiler pressure is the force that moves hot water through your heating system. Ideally, pressure should sit between 1.0 and 2.0 bar when your system is cold. If it drops too low, your boiler won’t operate efficiently — and in some cases, it may shut off completely.
You can usually check the pressure by looking at the gauge on the front of your boiler. If the needle is in the red or below 1.0 bar, there’s an issue that needs attention.
Common Causes of Low Boiler Pressure
- Leaks in the System: Small leaks in your pipework, radiator valves, or the boiler itself can slowly reduce pressure.
- Bleeding Radiators: Releasing trapped air from your radiators is good practice, but it can also lower the overall system pressure if not topped back up.
- Faulty Pressure Relief Valve: If this valve malfunctions, it may let out too much pressure when it shouldn’t.
- Recent Repairs or Maintenance: After draining the system for service, the pressure may not have been properly restored.
Can You Fix It Yourself?
In some cases, yes. Most modern boilers allow you to safely repressurize the system using a filling loop.
If you find yourself topping up the pressure frequently, that’s a sign of a deeper problem. It’s time to call a professional for a more thorough assessment.
When to Call the Pros
Persistent pressure loss, visible leaks, error codes, or a complete lack of heating are clear signs expert help is needed. At Bolton Services, we provide comprehensive boiler repair service, boiler installation service, and boiler maintenance service across Western North Carolina.
Whether you need emergency support, a routine inspection, or a brand-new energy-efficient system, our team delivers trusted boiler services in Asheville and Weaverville, NC, with the quality and care your home deserves.
Low boiler pressure may seem like a minor inconvenience, but left unchecked, it can lead to costly damage or a freezing home. Don’t wait for minor issues to become major problems — contact us at Bolton Services today. We’re here to keep your home warm, efficient, and safe all year long.
