How do I reset my AC control board?
If your air conditioning unit is not functioning properly, resetting the control board may be a simple solution. The control board is the brain of your AC system, responsible for managing various components and ensuring efficient operation. By resetting the control board, you can often resolve issues such as the unit not turning on, the compressor not starting, or the system cycling on and off unexpectedly.
Steps to Reset Your AC Control Board
- Locate the control board: The control board is typically located inside the outdoor unit of your AC system, often near the compressor. It may be housed in a metal or plastic enclosure.
- Turn off power to the unit: Before attempting to reset the control board, you must turn off power to the entire AC system. This can be done by locating the main circuit breaker or disconnect switch that supplies power to the outdoor unit and switching it to the "off" position.
- Wait for the capacitors to discharge: After turning off power, wait for at least 5 minutes to allow the capacitors in the control board to fully discharge. This is an important safety step to prevent any electrical shocks.
- Access the control board: Locate the access panel or cover that protects the control board, and remove it. This may require unscrewing or prying open the panel.
- Locate the reset button: On the control board, you should see a small reset button or switch. This is typically labeled "reset" or may have a symbol like a circular arrow.
- Press and hold the reset button: Press and hold the reset button for 5-10 seconds, then release it. This will initiate the reset process.
- Restore power: After resetting the control board, replace the access panel and turn the power back on to the outdoor unit. The AC system should now start up and begin operating normally.
If the reset process does not resolve the issue, there may be a more complex problem with the control board or other components in the AC system. In such cases, it's best to consult a professional HVAC technician for further diagnosis and repair.
How do you reset the AC control board?
It's a small, red button usually located on or around the unit. The button should have a clear 'reset' label. Once you find the button, press it for around three seconds and observe the AC. Check whether the AC kicks on immediately and if it doesn't, press the button again for another three seconds.
What do I do if my AC control panel is not working?
What to Do When Your Control Panel Is Blank
- Change the batteries: Some thermostats operate on batteries that will die after a period of time.
- The breaker is tripped: Another reason why the AC control panel is blank could be because the breaker is tripped.
How do I know if my AC control board is bad?
Now that you know where the control board is and what it does, let's explain the top signs that your control board is malfunctioning.
- Illuminated Warning Lights.
- Immobilized Switches on the HVAC Control Board.
- Faulty Soldering Connections.
- Interrupted Sequencing.
- Temperature Regulation Issues.
Which button is the reset button?
The location of the reset button varies depending on the device. In many electronic devices, such as routers and modems, the reset button is typically a small, recessed button on the back or bottom of the device. Some devices may have a software-based reset option accessible through the device's settings menu.
How do I reset my AC without a reset button?
If You Don't Have a Reset Button on Your Outdoor Unit
Unplug the unit from the power supply board and disconnect the system. This ensures that the AC unit is receiving no power whatsoever. Wait 30 minutes, then plug the unit back in.
How do I know if my control board is fried?
You turn on your heat, then smell burning plastic or metal, or a strange electric smell.
Why would an AC need to be reset?
This issue is when a circuit breaker powers on, protecting your appliances from voltage hazards. Sometimes, after a breaker is tripped, your AC unit may not work as well as before. If you have it set at a cool temperature but all you're feeling is warm air — a quick reset is sometimes all you need.
Do all outside AC units have a reset button?
Some air conditioning systems have a reset switch, which is a small, red button. Typically, the button will be on the outdoor unit. If you have a problem locating it on the outdoor unit, you may find relevant details on the equipment's manufacturer's manual. Press the red button for three seconds and release.
How much does it cost to replace a control board on an AC unit?
Replacement AC Circuit Board
The circuit board controls the operation of the blower fan motor as your air conditioner runs. The cost to repair this issue is typically between $100 to $800.
Where is the AC reset button located?
In AC systems, the air conditioner reset button is on the outside unit's lower edge, typically close to the ground. Some models have the reset button located behind the service panel, which may require tools to remove. Reset buttons are usually red or yellow with a clear “reset” label.
