Homeowners in areas that experience extremely low temperatures and winter seasons have underground heaters installed in their homes to allow them to enjoy the warm temperatures all year round. Like any heating system, underground heaters also experience unwanted faults, and below are some common underfloor heating problems.
Air in the system
When the air gets trapped in the heating system, it prevents the radiators from working correctly. This causes the system to develop some cold spots or the temperature to fall. To fix the problem, you may need to bleed the system by dislodging the air and refilling the system to increase the pressure. Shut all the valves you are not venting to prevent more air from getting in the system, and ensure you close all the valves after you are done. If you are unsure, you can do the bleeding and contact a heating engineer.
Cold spots are easy to note, especially for people who have used underground heating for a long time. This indicates that parts of the system are not heating up. This may result from the air in the system, a faulty thermostat, wiring faults, or a failed actuator. Some of these causes, like a failed actuator, should be fixed actuators. CNPH are heating engineers that are well trained and best suited for such a job as they offer a wide variety of services on heating problems. You can seek their services to repair your heating system.
A dysfunctional underground system
A dysfunctional underground heating system ultimately does not produce any heat, which may indicate significant heating problems in the system. Some of these problems are a faulty circulation pump, closed isolation valves, the bending valve pin being trapped, or the boiler not working. These problems require the attention of a qualified professional heating engineer, except for the bending valve pin, which you can fix. Open the valve head and use silicone spray or a pair of pliers to free the valve pin.
Falling pressure or too high pressure
The pressure may fall if leaks in the underground heating system. You can identify the part with the leakage by depressurizing different parts of the system simultaneously. The problem with the pressure might also be in other regions like the expansion vessel in the boiler, the boiler blow-off valve, or the pressure relief valve. The pressure can also read high if the filing loop is left running or there is a blockage in the system. A qualified plumber or a professional heating engineer can only fix this problem.
Prevention is better than cure, and it would be best if you can manage to have a regular check-up for your underground heating system to avoid major catastrophes. It is also expensive to install and maintain; hence should be installed and any functional problems and faulty parts are fixed by a professional to avoid any drawbacks in the future. Underground heating systems are energy efficient, safe, and provide more floor space for the house design.