The answer to 'why is my furnace' is that there are several common causes for furnace problems, including a clogged air filter, a malfunctioning thermostat, issues with the pilot light or ignition system, or a problem with the blower motor. Symptoms may include the furnace not turning on, poor heating performance, strange noises, or inconsistent temperature throughout the home.
Many minor furnace issues can be resolved through simple DIY troubleshooting and maintenance, such as replacing the air filter or resetting the thermostat. However, more complex problems like a malfunctioning ignition system or a problem with the blower motor often require the expertise of a professional HVAC technician. It's important to address furnace issues promptly to ensure safety and prevent further damage to the system.