What causes my boiler to overheat?
There can be different reasons for getting your boiler overheat, as sometimes you may see that your boiler is getting overheated, which can make a serious problem with your boiler system. Knowing the reason behind this overheating problem is important because it will help you understand the reason and when you need to call professionals. The boiler is getting overheated can be due to some known reasons, like-
The thermostat does not operate properly
If your boiler thermostat is not working properly (a broken or faulty thermostat) is one of the main reasons for getting your boiler to overheat because the thermostat works to control the temperature and tells the boiler when to stop heating. The boiler may continue to heat water above safe limits if it malfunctions or provides inaccurate data. The system may overwork and overheat as a result.
Water Flow Which Is Blocked or Restricted
The water needs to move properly for your boiler to continue operating at an acceptable temperature, but it can not flow smoothly if there is any garbage like sludge, dirt, or limescale, clogging pipes, radiators, or the heat exchanger. If water circulation can not be maintained correctly, it will make heat problem within the boiler when the circulation of water becomes restricted, ultimately leading to overheating. This is especially prevalent in systems decades old that have not received routine maintenance.
Broken Pump
The pump under the boiler system is working to supply hot water through your heating system to taps. Hot water remains entangled inside the boiler instead of circulating through the radiators if the pump stops working or becomes weak. This entrapped heat renders the boiler temperature to rise fast and start overheating issues.
Water Pressure Low or High Problems
If your boiler has incorrect water pressure, either too high or too low can make problem and overheating. If your boiler has high pressure, it will put stress on internal components, and if there is low pressure, it can become a proper water circulation problem. Most boilers have a inbuild pressure gauge, and anything outside the recommended range can cause the system to behave unpredictably.
Hard water and limestone Accumulation
Calcium carbonate or limescale are the most common issues in hard water places because minerals build up inside the boiler's heat exchanger over time, which hinders effective heat transfer. Internal temperatures rise as a result of the boiler having to work harder. Sludge accumulation in the system can also obstruct heat transfer and result in overheating.
Lack of Regular Maintenance
Skipping annual boiler servicing can make issues and contribute to overheating issues. If there is regular maintenance, then before any measure issue, it can help to find minor problems and it can allow for the identification of early symptoms of wear, blockages, or failing parts.
At FixHelpia, our experienced technicians are experts in finding and fixing overheating problem and they provide reliable repair solutions.