My Gas Furnace Will Work for a Few Hours and Then Stop Working for a Few Hours. The Thermostat is Working Fine. What Could Be the Problem?
Possible Causes:
- Pilot Light Problem: The pilot light may be going out intermittently, causing the furnace to shut off. Check if the pilot light is staying lit.
- Faulty Flame Sensor: The flame sensor detects the presence of flame. A dirty or malfunctioning flame sensor can prevent the furnace from igniting or operating continuously.
- Dirty Air Filter: A clogged air filter can restrict airflow, causing the furnace to overheat and shut off. Replace the filter regularly.
- Overheating Limit Switch: If the furnace overheats, the limit switch will trip, shutting off the furnace for safety reasons. Check if there is any blockage or restriction in the air intake or exhaust vents.
- Electrical Issue: Loose electrical connections or a malfunctioning ignition module can cause intermittent furnace operation. Ensure all connections are tight and check the ignition module.
Related Questions:
- Why does my gas furnace keep turning off and on? Possible causes include a faulty pilot light or flame sensor, dirty air filter, overheating, or electrical issues.
- How do I reset my gas furnace? Locate the reset button near the furnace's gas valve and press it.
- How often should I change my furnace air filter? Every 1-3 months, or more frequently in dusty environments.
- What are the signs of a bad ignition module in a furnace? Intermittent furnace operation, failed ignition attempts, or a flashing LED indicator light.
- How do I know if my pilot light is out? The pilot light flame should be visible through a small viewing window on the furnace. If it's not lit, the furnace will not operate.
Related Hot Sale Products:
- Carrier Gas Furnaces
- Goodman Gas Furnaces
- Trane Gas Furnaces
- Lennox Gas Furnaces
- York Gas Furnaces
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