The Most Common Reason Why A Gas Furnace Won't Turn On
A video on YouTube. In DIY & Home Repair, a Krater category.
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This video covers how to troubleshoot and fix a furnace that turns on and quickly off due to a faulty flame sensor, detailing a six-step startup cycle and showing how to clean or replace the sensor.
From the video
Answers: How do I troubleshoot a furnace that turns on and then quickly turns off?
- furnace troubleshooting
- furnace startup cycle
- flame sensor cleaning
- flame sensor replacement
- HVAC maintenance
What it concludes
- A common furnace failure where the burner turns on and off is caused by a faulty flame sensor that fails to detect the flame.
- Carbon buildup on the flame sensor rod can be cleaned using steel wool or a dollar bill to restore its function.
- Cleaning or replacing the flame sensor is a simple, low-cost fix that can solve furnace lockout issues without needing expensive parts.
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