How to Reset an Airthings Radon Detector

On this page (8 sections)

1. How do you reset an Airthings radon detector after moving it?
2. What is the difference between restarting and factory resetting?
3. How do you restart a Corentium Home?
4. How do you restart a Wave Plus?
5. Does a reset clear old radon readings?
6. When should you use a separate radon test?
7. How can you tell if the detector is working after a reset?
8. What should you do after resetting an Airthings radon detector?

To reset an Airthings radon detector, follow the reset or restart steps for your exact model, then place it in the new location and give it time to settle. A reset starts or clears device information; it does not turn a brief reading into a dependable long-term measurement.

The steps depend on whether you have a Corentium Home or a Wave Plus. Before changing anything, note the current reading and check the model name so you can choose the right instructions.

How do you reset an Airthings radon detector after moving it?

Restart the detector only as its model instructions direct, then leave it in the new measurement spot. Moving a monitor changes its environment, so readings immediately after the move may not represent the new location.

Set the device in the area you want to measure and avoid moving it repeatedly. Follow Airthings' instructions for any settling period and for reading short-term and long-term values.

A reset may refer to a power restart, clearing stored data, or restoring settings. Those actions are different, so don't try a button combination found for another Airthings model.

If you're still choosing a device, compare the best Airthings radon detector options before deciding which model fits your monitoring needs.

What should you check before resetting?

Check the model name, current display, and whether the device is powered. If you have a Corentium Home, note that it runs on 3 AAA batteries; if the screen is blank, check the batteries and the model's instructions before assuming it needs a reset.

For a Wave Plus, check its connection and the Airthings app if you use it. The Wave Plus can show a color-coded visual indication when you wave in front of it and connects by Bluetooth for detailed app insights.

Don't reset just because the radon value changed. Radon levels fluctuate, and a changing reading alone does not show that the detector has failed.

What is the difference between restarting and factory resetting?

A restart powers a detector off and on, while a factory reset can clear settings or data. Use the least disruptive option that addresses the problem, and confirm what a reset will erase before proceeding.

If the detector is responding normally after a move, you may not need to clear it. Keep the earlier readings available if you want to compare the old location with the new one.

For instructions tied to a Corentium Home display, see what Airthings Corentium Home error codes mean. An error message may need a model-specific fix rather than a general reset.

How do you restart a Corentium Home?

Use the Corentium Home instructions for its restart controls, then check that the screen resumes showing readings. The portable detector displays average daily, weekly, and long-term radon concentrations.

If you moved it, let it remain in the new area while measurements build. Avoid comparing a fresh reading with a long-term average from the previous room as if both describe the same conditions.

The Corentium Home uses 3 AAA batteries and has an LCD screen. If it doesn't respond, check power and consult Airthings' model instructions or support rather than repeatedly pressing controls.

For help interpreting the display after it starts measuring again, read how to read an Airthings radon detector.

How do you restart a Wave Plus?

Follow the Wave Plus instructions for restarting the monitor and reconnecting it to the app if needed. The Wave Plus measures radon alongside carbon dioxide, VOCs, humidity, temperature, and air pressure.

After moving it, let the sensors adjust to the new environment. Airthings says to allow a 7-day settling period for the sensors; use the app or the device's visual indication as directed while monitoring.

If the app doesn't show the device, check Bluetooth and the app's device settings before attempting a factory reset. A connection issue and a sensor reset are separate problems.

Our Airthings Wave Radon review explains how this model's monitoring features compare with a dedicated radon detector.

Does a reset clear old radon readings?

It can, depending on the model and reset option, so check before confirming a data or factory reset. If you may need the old results, record them or save an available report first.

The Corentium Home can generate a radon self-inspection report, and the Wave Plus connects to an app for detailed insights. Keep any records you want for later comparison before changing settings.

A reset doesn't remove radon from a room or change the conditions that affect readings. It only changes the device's operation or stored information.

When should you use a separate radon test?

Use a separate test when you need an additional measurement method or a screening test. A digital detector supports ongoing monitoring, while a test kit is a different way to assess radon.

First Alert says results are emailed within 72 hours of lab receipt. Follow the kit directions and any state-specific requirements for where you plan to use it.

For context on what these devices measure, see what a radon detector is and whether home radon detectors work.

How can you tell if the detector is working after a reset?

Check that it powers on, shows readings, and follows the expected model instructions. A working display confirms the device is operating, but one reading alone can't confirm a long-term radon level.

Keep the detector in a suitable measurement location and allow it to collect readings over time. If it continues to show an error or no readings, consult the manual or Airthings support.

A reset doesn't certify accuracy. For more on interpreting the results and their limits, read how accurate an Airthings radon detector is.

What should you do after resetting an Airthings radon detector?

After resetting, keep the detector in its new location, allow it to settle, and follow its model-specific guidance for reading results. Choose a restart when you need to resume operation, and use a factory reset only when you understand what information it may clear.

If the device still shows an error, use its exact model instructions or contact Airthings support. For ongoing monitoring, keep placement consistent and use longer-term readings to understand changes.

Frequently asked questions

How do I reset an Airthings radon detector?

Use the reset or restart instructions for your exact Airthings model, since button combinations and app steps can differ. After moving it, place it in the new measurement area and let it settle before treating the readings as representative.

Check the manual or Airthings support if the controls aren't clear.

Will resetting an Airthings detector erase its readings?

It depends on the model and the reset option. A restart may simply power the detector back on, while a factory reset or data reset may clear settings or stored history.

Check the model's instructions before choosing an option, especially if you want to keep earlier measurements for comparison.

How long should I wait after moving an Airthings radon detector?

Give the detector time to adjust to the new environment and follow its model instructions for interpreting readings. Radon can vary over time, so a brief reading right after a move is not a substitute for longer monitoring.

Keep its placement consistent while collecting readings you plan to compare.

Does resetting make an Airthings radon reading more accurate?

No. Resetting can restart the device or clear information, but it doesn't improve the sensor or remove normal variation in radon levels.

Use the detector as directed, allow readings to accumulate, and compare them over the appropriate period.

For a serious concern, consider a qualified radon test.