Most people think their furnace isn’t capable of freezing but that is a false notion – a frozen furnace is a real problem! Several components of your heating system are in contact with moisture, and when temperatures drop, a freeze is possible. Learn more about this problem and what to do if you experience it.
Frozen Condensate Drains
The condensate drain pan and drain lines that run outside from your HVAC system have the potential to freeze during colder temperatures. A clog can prevent moisture from exiting the system, allowing it to pool up within your unit. When the condensate drain lines freeze, a residential furnace repair is the best option to thaw the line and check to make sure your indoor unit and its vital components were not damaged.
Prevent Frozen Furnace Condensate Drains
There are a few things that can prevent future freezing from occurring with a scheduled furnace service call. In case of needing Atlanta furnace repair, HVAC experts can shorten the drain line and insulate it at the same time. This protects the condensate drain line against exposure to temperatures that are freezing. With furnace service, a professional can also add weatherproof sleeves to the line, which prevents the temperature from going too low inside the line.
A gas furnace moves air throughout ductwork and vents inside your home. Ducts typically run through areas that are uninsulated and are typically uninsulated themselves, making their metal surfaces cold. Warm, moist air enters return ducts and makes contact with its cold surfaces, which allows condensation to form inside. Anywhere within the duct system where condensation has gathered can cause frozen furnace ducts. Water leaking through duct leaks is also a possible source.
Prevent Frozen Ducts
Keep moisture and the possibility of ice formation out of your furnace’s duct system. Seal the duct system and resolve all air leaks. Not only does this keep moisture out, it keeps HVAC energy in which helps you reduce your heating bills. If frozen furnace ducts become a recurring problem, consider the installation of insulation in the area surrounding the ducts as well as specialized duct insulation. This prevents cold temperatures from affecting the ducts as much and remedies many freezing issues.
Frozen Heat Pumps
A frozen heat pump is not a frozen furnace, but it does concern a freezing heating system. Over the winter months, outdoor heat pump equipment often freezes, resulting in a layer of ice encasing the unit. Ice may also reach inside the unit and around the coils.
A frozen heat pump results from issues such as:
- A blockage of the outdoor coil
- Gutter leaks that drip water onto the unit
- Low refrigerant charge
- Outdoor fan malfunctions
- Stuck reversing valve
- Malfunctioning defrost thermostat, control, timer, sensor, or relay
- Bad reversing valve solenoid coil
Fix a Frozen Heat Pump
Heat pump equipment typically has a built in defrost cycle. When frosty conditions are detected, the system automatically switches into air conditioning mode to send heat through the outdoor coil. Backup heating systems such as furnaces and electric heating coils keep the home warm as the heat pump defrosts.
If the defrost cycle does not eliminate your frozen heat pump, or you have repeated problems with your heat pump freezing, heating repair is necessary. Your technician finds the source of the issue and makes an accurate repair or component replacement to stop the problem from repeating.
While not a cause of a frozen furnace, this problem certainly results in a serious secondary issue – thermostat malfunctions. If you have any type of freezing happening throughout your furnace, condensate drain lines, or the ductwork, it has the potential to mess with the thermostat’s ability to read the correct temperature. Furnace service also addresses a malfunctioning thermostat due to freezing. A smart thermostat helps eliminate false readings.
Estes Services Fixes Your Frozen Furnace
Whether your furnace is experiencing freezing issues, contact a professional to keep your home warm. Estes Services has certified and trusted experts standing by for your furnace tune up and repairs. Contact us today to schedule HVAC service.