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      • Locate and hold the reset button for about 5 seconds, or power your thermostat off for 30 seconds before turning it back on. Change dead batteries in your thermostat, or flip the orientation of the batteries for about 5 seconds while the thermostat is turned off.
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  2. May 16, 2023 · Locate and hold the reset button for about 5 seconds, or power your thermostat off for 30 seconds before turning it back on. Change dead batteries in your thermostat, or flip the orientation of the batteries for about 5 seconds while the thermostat is turned off.

  3. Pilot stays on but the furnace doesn’t come on, step 2. Push the reset button on the limit switch and try raising the thermostat setting again. The limit switches on older homes don’t have a reset button. Pilot stays on but the furnace doesn’t come on, step 3. Replace the limit switche (s).

  4. Reset the thermostat – If all else fails, try resetting the thermostat to its factory settings and setting it up again. Call a professional – If the issue persists, there may be a problem with the thermostat itself, so it’s best to call a professional for assistance. Why is my thermostat displaying an error code?

    • The battery needs to be replaced. Is the display dark or blank? Many thermostat displays are battery-powered. If the display on your thermostat is off, replacing the battery will usually fix the problem.
    • A circuit may have tripped. Check your circuit breakers. If the circuit that powers your furnace or air conditioning system has tripped, your thermostat's display may work (if it has one), but your HVAC system may not kick on.
    • The thermostat isn't programmed correctly. Your thermostat won't kick on if its current settings aren't correct. If your thermostat is heating or cooling at the wrong times, not turning on when it's supposed to, or keeps reverting to different settings, it's likely on a specific program.
    • The furnace or air conditioner may not be on. Check the power switch for your furnace or AC. If either is turned off, that system won't turn on, no matter how you program your thermostat.
  5. If the burner in your standing-pilot furnace won’t light, try these troubleshooting steps. 1) Thermostat. Make sure your thermostat is set toheatand turned up. 2) Pilot Light. Be sure your pilot light is lit. To light, follow these steps: a. Be sure gas to furnace is on. b. Turn knob on gas valve to pilot. c.

  6. Dec 19, 2023 · Locate the reset button: Look for a small reset button or a pinhole on your smart thermostat. The location of the reset button may vary depending on the model. Consult the user manual or manufacturer’s instructions for guidance on finding it. Prepare for the reset: Ensure that your thermostat is powered on and functioning correctly before ...

  7. How Do I Reset My Thermostat? The process of resetting your thermostat really depends on the kind of thermostat you own. Here’s how you can reset a mechanical thermostat, which is the most common type: First, turn your thermostat off. Turn off the breaker to which your HVAC system is connected. Wait for one minute before turning the breaker ...