How do I reset my heater fan?
Resetting a heater fan depends on the device you’re using. For most portable space heaters with a fan, a simple reset button or power cycle will do. For central furnaces and built‑in heaters, you’ll generally need to cycle power or use a dedicated reset control located on the unit. Always prioritize safety: if you smell gas, hear unusual noises, or notice persistent overheating, stop and call a professional.
Know what kind of heater you’re dealing with
Before attempting a reset, identify whether you’re dealing with a portable space heater, a central furnace blower, or an electric heater with a built‑in fan. The reset method varies by type, and using the wrong procedure can be ineffective or unsafe.
Portable electric space heaters with a fan
The following steps cover most consumer portable space heaters that include a built‑in fan and a thermal cutoff or reset feature.
Before you begin the list, note that not all models have a dedicated reset button. If yours lacks a reset control, a simple power cycle is usually sufficient.
- Unplug the heater from the wall outlet and let it cool completely.
- Inspect the unit for a reset button or switch—often located on the bottom, back, or near the cord entry. If you find one, press and hold it for 3–5 seconds, then release.
- If your model has a thermal cutoff or overheat protection that resets automatically, simply re‑plug the heater after a brief wait (about 5–10 minutes) and power it on.
- Plug the heater back in and turn it to the desired setting. If it runs normally, you’re good to go; if it trips again, try a different outlet on a separate circuit or check the cord for damage.
- If the unit still won’t reset or repeatedly trips, discontinue use and consult the manufacturer’s manual or contact customer support for guidance.
In most cases, a successful reset restores normal operation. If overheating or frequent tripping continues, there may be a fault with the element, thermostat, or wiring.
Resetting a central furnace or heater blower
For furnaces and central heating systems, the blower fan is controlled by the furnace’s control board. Resetting often involves safely cycling power or using a reset button located on the furnace itself. If you smell gas or hear a continuous banging or popping sound, shut off power and call a professional immediately.
Follow these steps to attempt a safe reset of a furnace blower before scheduling service:
- Turn off the thermostat and set it to Off or Auto. If you have a heat pump, set to the appropriate mode rather than emergency heat.
- Power down the furnace: switch it off at the thermostat, and then switch off the furnace at the dedicated circuit breaker or disconnect switch located near the unit.
- Wait 5–10 minutes to allow any residual power to clear and for safety sensors to reset.
- Restore power at the breaker/disconnect and switch the furnace back on. If your furnace has a dedicated reset button or switch inside the access panel, open the panel (with power off), locate the reset control, and press/activate it as instructed in the manual.
- Return the thermostat to the desired setting and observe whether the blower starts normally. If the fault code or tripping continues, or the blower does not start, contact a licensed HVAC technician for diagnostics.
- If you detect a gas smell at any time, leave the area immediately and contact your gas supplier or emergency services.
Many modern furnaces use electronic fault codes to indicate why the blower quit. If you see blinking lights or a fault code on the furnace display, refer to the manual to interpret the code and determine whether a reset will clear it or if professional service is required.
Electric heaters with a built‑in fan or circulation feature
Some electric baseboard or wall heaters include a fan and a simple reset mechanism. Others rely on the home's circuit breaker. Use the following steps to reset these units safely.
Before you begin the list, this approach helps if the unit has a built‑in reset or a clear power cycle path through the breaker.
- Switch the heater off at the control and unplug it from the outlet. If the unit is hardwired, switch off the circuit breaker for the dedicated circuit.
- Wait 1–2 minutes to allow any internal thermal fuse or protection to reset.
- Plug the heater back in or restore power at the breaker, then turn the unit on and set it to the desired heat level.
- If the unit includes a reset button, press it according to the manufacturer’s instructions and test the functionality.
- If the heater continues to malfunction or trips the circuit, discontinue use and seek service from a qualified technician or contact the manufacturer for troubleshooting steps.
Note: Do not bypass safety features or use extension cords with portable heaters, as this can present a fire hazard. Always keep space heaters on a flat, stable surface away from curtains, paper, or other flammables.
Safety reminders and when to call a professional
Resetting a heater fan is often straightforward, but persistent problems or signs of danger require professional help. Seek service if:
- You smell gas or hear gas leaks.
- Your furnace or heater emits unusual noises, squealing belts, or appears to have burnt wiring.
- There is visible damage to cords, plugs, or the unit itself.
- Fault indicators or flashing lights appear on the unit and resetting does not resolve them.
Regular maintenance, including cleaning filters on furnaces and ensuring space heaters are free of dust and lint, can reduce the need for resets and extend the life of your equipment.
Summary
Resetting a heater fan depends on the device: portable electric space heaters use a reset button or a simple power cycle; central furnaces require safe power cycling and possibly a panel reset; electric heaters with built‑in fans may rely on a breaker or internal reset. Always prioritize safety, follow the manufacturer’s instructions, and consult a professional if the unit repeatedly faults or you suspect gas or electrical hazards. Proper maintenance and cautious use help keep your home warm and secure.
Where is the blower reset button?
The blower motor reset button is usually a small red or yellow button located on or near the motor itself, typically inside the furnace's main blower compartment. To find it, you may need to open the furnace access panel, and the button is often on the motor's housing or the control board. For older systems or specific models, the button might be hidden underneath or behind the motor, so checking your furnace's manual is a good idea if you have trouble locating it.
This video shows how to troubleshoot and reset a furnace: 59sQuality Heating, Cooling, Plumbing & ElectricalYouTube · Aug 22, 2018
Finding the reset button
- Open the access panel: Turn off the power to the furnace and remove the front panel to access the inside components.
- Locate the blower motor: It is typically a cylindrical component with wires connected to it.
- Search for the button: Look for a small, red or yellow button, sometimes marked with an "R" or a flame icon, on the motor's housing or the control board.
- Check the manual: If you still can't find it, consult your furnace's manual for the specific location.
How do I manually reset my heater?
Up come on. Now after you've tripped the breaker. And turned it back on after 3 minute wait you want to come back to your thermostat. And turn the thermostat. Up. And we're sitting at about 71°.
How do I reset a heater fan?
Allow the blower to cool down, so that any metal components are safe to touch. Once the blower is cool, locate the reset button, which is usually red and located on the backside of the motor. If the reset button has popped, push it back in.
How do you know if your furnace needs to be reset?
Why Your Furnace May Need To Be Reset
- The furnace has overheated: When your furnace runs too hot, it triggers a safety shut-off to prevent damage.
- The fuel supply is empty: Your furnace can't generate heat without fuel.
- The gas valve is shut: A closed valve blocks the fuel supply.
