Why is my gas furnace making noise but not producing heat?
If your gas furnace is making noise but not producing heat, there could be a few reasons why.
- Dirty or clogged air filter. A dirty air filter can restrict airflow to the furnace, which can cause it to overheat and make noise.
- Faulty thermostat. A faulty thermostat may not be sending the correct signal to the furnace, which can cause it to overheat or not turn on at all.
- Gas valve problems. The gas valve may not be opening or closing properly, which can prevent the furnace from getting the gas it needs to operate.
- Ignitor problems. The ignitor may not be sparking properly, which can prevent the furnace from lighting.
- Heat exchanger problems. A cracked or damaged heat exchanger can allow carbon monoxide to leak into the home, which can be dangerous.
If you are experiencing this problem, it is important to have your furnace inspected by a qualified technician as soon as possible.
Related Questions
- How can I tell if my furnace filter is dirty?
- Check the filter for dust, dirt, and debris. If the filter is visibly dirty, it should be replaced.
- How do I reset my furnace thermostat?
- Refer to your thermostat's manual for specific instructions.
- What are the signs of a faulty gas valve?
- A faulty gas valve may cause the furnace to not light or to shut off prematurely.
- What are the symptoms of a cracked heat exchanger?
- A cracked heat exchanger can cause the furnace to produce a burning smell or to leak soot.
- Is it safe to operate a furnace with a cracked heat exchanger?
- No, it is not safe to operate a furnace with a cracked heat exchanger. Carbon monoxide is a colorless, odorless gas that can be deadly.
Related Hot Sale Products
- Lennox Gas Furnace
- Trane Gas Furnace
- Goodman Gas Furnace
- Amana Gas Furnace
- Carrier Gas Furnace
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