In the middle of a cold Long Island winter, the last thing you need is an unreliable boiler. While you can’t always predict when something will go wrong, it helps to be aware of the problems that can arise so you’ll know how to handle them.
Radiators not heating
If all your radiators are cold, make sure your pilot light wasn’t blown out or your fuel supply cut off. Then check your room thermostat settings. If you can’t find the cause, chances are you have a failed component, such as a worn-out valve or broken diaphragm.
Knocking, rumbling, and other noises
Noises are often due to air in the system, meaning you need to bleed the radiators. Loud knocking sounds in an older system suggest a failing pump. Rumbling sounds are usually due to “kettling,” a water flow problem caused by mineral scale buildup.
Leaks and drips
Occasional dripping from the pressure relief valve is normal, but if it happens every day, you need to reduce the system’s pressure. A leaking pipe fitting or joint could just be loose and in need of tightening. Otherwise, you might have a broken seal. Failed internal components can also cause these leaks. Leaks in the boiler’s body suggest a crack, meaning it’s time for a new boiler.
Loss of pressure
If you’ve just bled the radiators, you may need to repressurize the system. If not, check for leaks and, if you find one, call an HVAC technician for help. A worn-out pressure relief valve can also cause low pressure. It’s possible to replace this component yourself, but if you’re not comfortable doing so, a technician can do it for you.
Frozen condensate pipe
A condensing boiler has a condensate pipe that carries acidic waste water outdoors. This pipe can freeze in winter. When this happens, your system’s display panel should show a warning or fault code. You can thaw the pipe by placing a heated hot water bottle on it or call a pro for help.
To learn more, contact Cool Power, LLC, providing trusted HVAC services for Long Island homeowners.
Our goal is to help educate our customers in Hauppauge, New York and the Long Island area about energy and home comfort issues (specific to HVAC systems). For more information about boilers and other HVAC topics, download our free Home Comfort Guide or call us at 631-292-0629.
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