The heat your furnace provides keeps your home comfortable, but it also reduces your and your loved ones’ risk of illness. When your heating system suddenly starts emitting cold air, fixing the issue quickly will promote health and safety in your home.
This guide will help you diagnose and solve the problem faster.
1. The Air Filter Needs Changing
Before you schedule furnace repair, check the air filter. Your furnace uses a filter to remove pollutants from treated air. As the filter collects these contaminants, the fibers can become clogged and unable to process treated air.
The dirty filter can cause a backup in the system, leading to overheating. As a safety measure, the furnace will stop heating the air, and the blower motor will blow cold air into your ducts. You can fix this issue and avoid common furnace problems by changing your air filter more frequently.
2. The Pilot Light Requires Attention
When your furnace puts out cold air, one of the first things to check is the pilot light. Fortunately, your annual furnace tune-up involves cleaning the fuel port and checking the gas line for leaks.
In some cases, however, the pilot light may go out repeatedly. A dirty thermocouple, faulty gas regulator, or clogged intake valve are some of the possible underlying causes of a finicky pilot light. You’ll need to call in a Daigle Plumbing, Heating & Cooling technician to address these issues.
3. There’s a Blockage in the Condensate Drain Line
You probably don’t need a complete furnace replacement if your heating system is emitting cold air. If the problem is the result of a blocked condensate drain line, you may only need minor repairs. You can usually prevent this outcome with annual heating system maintenance since your technician will clear the line and check for damage.
If the line can’t properly drain due to a blockage, moisture will back up in the drain pan, triggering a safety mechanism that forces the burners to shut off. The blower motor will still function and generate cold air, and the fan will push that air into your ducts.
4. The Heat Exchanger Has a Flaw
A damaged heat exchanger can affect your home heating safety in addition to causing operational woes. That’s because the heat exchanger contains combustion gasses that heat the air. When the unit cracks or otherwise becomes damaged, those gasses can leak into your home. This is a common cause of carbon monoxide exposure.
In addition to the safety risks, a cracked heat exchanger can interfere with the heating process. Since the gasses are leaking from the unit, they aren’t present to heat the air. You’ll need immediate heating repair to restore your furnace’s safe heating process.
This is usually a more costly repair service that involves replacing the faulty heat exchanger. If your heating system is older, a replacement might be more cost-effective.
Don’t Put Off Your Heating Repairs
Daigle Plumbing, Heating & Cooling provides reliable furnace maintenance and repairs. Our skilled technicians can diagnose and fix any heating problem that’s interfering with your ability to maintain a consistently comfortable indoor temperature. If you’re experiencing heating problems, contact us for prompt service.
