Your furnace blowing cold air is more than an inconvenience on cold days in Venetia, PA. Plummeting outdoor temperatures result in a frigid and potentially dangerous home environment without warmth from your furnace. Here are four reasons a furnace blows cold air.
1. Leaky Air Ducts
Air ducts channel warm air from the furnace into your rooms. However, ductwork is prone to problems like leaks and holes. These gaps allow warm air to escape, which leads to less warm air reaching your vents.
Causes of leaky air ducts include age, rodents and unintentional damage while working in the attic. Duct sealing or duct replacement resolves this common problem.
2. The Thermostat Setting
Homeowners often forget to change their thermostat settings when the seasons change. Setting your thermostat to the “heat” rather than the “cool” setting will help ensure your system delivers warm air to your home. If the thermostat seems unresponsive, change the batteries or contact us for a replacement thermostat.
3. Pilot Light Issues
Older furnaces often develop pilot light problems. When the pilot light is off, the burners will not ignite and produce heat. In addition to age, pilot lights go out because of a bad thermocouple, a leak or blockage, a clogged intake valve and other reasons.
Reigniting the pilot light is potentially dangerous and requires professional attention. Addressing the cause of the damage or installing a new furnace eliminates the likelihood of an ongoing problem.
4. A Clogged Condensate Line
Your furnace’s combustion process produces condensate. The condensate line carries this moisture away from the furnace. A clogged condensate line causes the safety mechanism to turn the pilot light off.
Because the pilot light is off, the furnace only blows cold air. The safety mechanism prevents the pilot light from igniting while the clog remains.
We will quickly diagnose the cause of your furnace problem and repair the issue. Contact Bruno Plumbing & Heating today for fast furnace repair service.
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