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  2. Nov 22, 2021 · If your blower motor doesn’t turn, you likely have a bad blower motor. Maybe the motor is dead or defective. However, a blower motor that won’t turn may also point to other issues such as underlying circuitry or power supply challenges.

    • Inspect the Wires in Your Furnace. Make sure that the power cord hasn’t melted or a fuse hasn’t been blown. If your cables are looking fine, try unplugging the fan for a few minutes and then plugging it back in again.
    • Make Sure Your Thermostat Is Set and Working Correctly. If your blower fan has power, then the next step is to check the thermostat on your furnace. Most thermostats will be set to “auto” automatically when they come from the factory.
    • Check the Filters and the Vents. Blower motors are designed to circulate air, so they won’t work if there’s no air to move. You should always check the filters and vents surrounding the blower to make sure that the blower isn’t having a hard time working.
    • Check Your Furnace Blower’s Drive Belt. To figure out if the blower motor belt is damaged, turn off the furnace at the circuit breaker panel in your home.
  3. Nov 12, 2023 · In this article, I’ll go over what you should do when your furnaces blower wont turn on. I’ll also go over the different parts that you should check, and how to diagnose common blower motor issues.

  4. When troubleshooting a furnace blower motor, it’s crucial to identify specific symptoms or patterns related to the issue. This could include the blower not turning on, running continuously without producing heat, or making unusual noises.

  5. In this HVAC Training Video, I Show 10 Common Blower Fan Motor Problems and I Explain Why The Blower Motor is Not Running, Not Working during Fan Mode, Air C...

    • 11 min
    • 537.2K
    • AC Service Tech LLC
  6. Nov 21, 2023 · Signs of a bad blower motor include failure to turn on, deviation from specified capacitance rating, and unusual resistance readings. Testing the blower motor requires a multimeter, insulation-piercing probe, capacitor discharge tool, and control board.

  7. Nov 22, 2021 · If your furnace blower fan is not working, the fan motor is likely defective. Alternatively, you may have a wiring issue. These two are the most common reasons why the furnace blower may refuse to turn.

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