If you own an Ideal boiler, you may have come across the term “pump overrun” on your display or in the user manual. While it may sound technical, it’s actually a normal and useful feature of your boiler. In this blog, we’ll explain what pump overrun means, why it happens, and how it benefits your boiler’s efficiency. By understanding this function, you can take better care of your heating system and ensure it runs smoothly.
What Is Pump Overrun?
Pump overrun is a feature built into many modern boilers, including Ideal boilers. After the heating or hot water demand has stopped, the boiler’s pump continues to run for a short period—typically a few minutes. This may seem unusual if you’re expecting the system to shut off immediately, but it serves a vital purpose.
Essentially, pump overrun helps cool down the boiler’s heat exchanger by circulating the water through the system even after the burner has turned off. This prevents the build-up of heat inside the boiler, which could otherwise damage internal components over time.
Why Does Pump Overrun Happen?
Pump overrun occurs as a protective mechanism. When your Ideal boiler generates heat, the burner transfers that heat to the water. Once the desired temperature is reached, the burner switches off, but the heat exchanger inside the boiler remains hot. If this heat is left to sit, it could cause the boiler to overheat, leading to potential issues like system failure or costly repairs.
By keeping the pump running for a short time after the burner shuts off, the excess heat is dissipated safely, maintaining the system’s efficiency and prolonging its lifespan.
How Does Pump Overrun Benefit My Ideal Boiler?
The pump overrun feature offers several benefits for your Ideal boiler:
- Increased efficiency: By cooling down the boiler gradually, pump overrun ensures that excess heat isn’t wasted, contributing to the overall efficiency of your heating system.
- Extended boiler life: Preventing overheating protects key components, reducing wear and tear and extending the life of your Ideal boiler.
- Reduced breakdowns: Regular pump overrun helps avoid common boiler problems like overheating, which can lead to expensive repairs if not properly managed.
If you’ve noticed your Ideal boiler’s pump running after the system has finished heating, rest assured that this is perfectly normal and a sign of your boiler operating as it should.
Does Pump Overrun Increase Energy Usage?
You might wonder if pump overrun leads to higher energy consumption, but the answer is no. The pump only runs for a brief period—usually just a few minutes—after the heating or hot water demand has ended. The energy used during this time is minimal compared to the benefits it provides in protecting your boiler and ensuring its efficient operation.
Additionally, by helping to prevent potential issues like overheating, pump overrun can save you from costly repairs and breakdowns in the long run, making it a feature worth having.
Do All Ideal Boilers Have Pump Overrun?
Most modern Ideal boilers come equipped with a pump overrun feature as part of their standard operation. If you’re unsure whether your model has this function or how it works, you can refer to your boiler’s manual or contact a heating professional for guidance.
At Boiler Sure, we’re always here to help you understand your Ideal boiler and how to get the most out of its features. If you’re experiencing issues with your boiler or need advice on its operation, don’t hesitate to reach out to us.
Need Help with Your Ideal Boiler?
If you’re still unsure about how pump overrun works or if your Ideal boiler is performing optimally, Boiler Sure can help. Our experienced team is here to provide advice, support, and professional maintenance services to ensure your boiler runs smoothly year-round.Â
Whether you need a routine check-up or a more detailed inspection, we’ve got you covered.Contact us today to book a service or get answers to any boiler-related questions.
