Last Updated on November 26, 2022 by Faiza Murtaza
There are several common problems that you might encounter while owning a boiler, including water quality problems, broken diaphragm, and leaking pressure-relief valves. Here are a few of the common boiler problems and repair procedures.
Table of Contents
Water quality
Water quality is one of the most important considerations for commercial industries. Poor water quality can cause problems with heat transfer, overheating of tubes, and failure of the boiler system. Proper water management will help prevent these problems and maintain the boiler’s warranty. Consult a professional in boiler maintenance services to look out for water quality to avoid a problem.
Leaking pressure-relief valve
If you have a leaking pressure-relief valve in your boiler, you may not realize it until the problem is too significant. This is because pressure relief valves can also be used for other appliances. The difference between these two types of valves is that pressure relief valves are typically set to a lower psi. Therefore, a pressure-relief valve in your boiler will automatically shut off when it reaches a certain amount of pressure.
Sludge build-up
Sludge build-up in boilers is an issue that affects approximately 20 percent of boilers. It occurs when suspended materials in the water stick to the inner surfaces of the hot boiler tubes, resulting in a mixture of solid matter and corrosion matter. The build-up eventually accumulates and prevents the water from flowing through the tubes, causing a clog. This is the cause of your boiler’s premature breakdown and a higher energy bill.
Broken system diaphragm
One of the most common causes of broken system diaphragms is chemical incompatibility. If you’re unsure what’s causing it, you can check the filter to see if there’s anything you can do to fix it. Another common problem is cavitation, where the vapor bubbles in the fluid implode. Cavitation can be prevented by, avoiding extreme depths and checking the liner and suction valves.
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Rust build-up
Rust build-up in boilers is a common problem, but it does not mean that your boiler is toast. Rust in your boiler can indicate other issues, such as internal corrosion. The rusting process will spread through the metal and create holes along the boiler’s tank. The metal will begin to rust from the inside out, and there are also risks of a leak, especially if you have a high-efficiency boiler.
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Motorized valves
Boilers use motorized valves to control water flow. They can be found on both hot water and heating-only boilers. The heating-only valve remains on the orange wire when switched off and will move to the Heating Only position when the cylinder stat reaches the correct level. Likewise, the hot water valve switch will return to its normal position if the thermostat reaches the correct temperature. This type of boiler valve is more complicated than its counterpart, so it is essential to understand the difference between motorized and manual valves.
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Frozen condensate pipe
This issue can occur in condensing boilers, which can remove waste gas. However, this waste gas can freeze in the winter, resulting in a blockage. To unfreeze a frozen condensate pipe, warm the pipe with hot water or a warm cloth. Then restart the boiler.
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