FAQ & Troubleshooting


How does it work?

Simple!  Follow the steps outlined in the Quick Start Guide.  After the initial setup is complete, the unit slowly flashing a teal / light blue LED light is your indoor unit.  This unit needs to be left plugged in, as it acts as the "communication base" and passes wireless data through your Wi-Fi network and communicates with the outdoor unit (see page 23 of the Owner's Manual for Indoor Unit Placement).  

The other unit is your outdoor (pool) unit.  Make sure that the charging port plug is inserted correctly (see Pages 25-26 of the Owner's Manual for details), and place this unit in the water.  Lightly bump the pool unit to trigger the alarm, then disarm the alarm through the app to clear the alarm.  You will want to test the Pool Guardian Pool Alarm System and adjust the alarm activation threshold to meet the needs of your pools environment.

Once you have adjusted the alarm activation threshold your alarm system is all set and ready! 
Here is a short video showing the steps for setting it up out of the box just in case.

NOTE: We strongly recommend reviewing the Owner's Manual for additional information on the hardware, using the app, storage, safety, and more.

Will the pool alarm work while a removable pool cover is on?  Click to expand.

The alarm will function with the pool cover on, but we recommend setting the Alarm Activation Threshold to its lowest and most sensitive level (1). This is the most sensitive setting, and it will help to negate the added friction introduced by the cover and the water surface. Also note that the outdoor alarm will also be slightly muted by the cover. We strongly recommend that you thoroughly test functionality when used with a cover, as pool cover styles and thickness vary, directly affecting sensitivity.

Will this work in a large fish pond, or will the movement of the fish trip the alarm? Click to Expand.

Yes, this system will work in a coy pond but direct contact from the fish could cause false positives. You can adjust the sensitivity to try to reduce this. Also, you may try implementing a wire or mesh separation to eliminate direct contact of the Pool Guardian by the coy.

Is there a monthly subscription? Click to Expand.

No, there is not.

What are the recommendations for pool size when using the Pool Guardian? Click to Expand.

The manual states that “One Pool Guardian functions well with pools 16ft by 32ft (512 ft2) and smaller.” It is recommended that you impliment two or more systems if your pool is larger than this.

Why is there a short few second delay between when the unit wakes on disturbance and when the alarm makes a sound? Click to Expand.

The alarm happens after the alert is sent to your smart phone. It can take 2-3 seconds before sounding, and is normal.

The alarm seems quiet? Click to Expand.

The alarm starts out soft, but quickly reaches full volume within 15 seconds. This is by design. The device full volume is quite loud.

Does the system make a sound on the indoor unit or only on your phone? Click to Expand.

When an alarm is triggered, an audible alert occurs at:

  • The outdoor unit
  • The indoor unit
  • The app (depending on your phones notification settings)

See pages 39-40 of the Owner's Manual for additional information.

Please note: you are able to configure alerts on iOS and Android to your preference- including customizing your alert sound, vibrate only, or no alert at all, if this is your preference.

Can I change the battery if it goes bad? Click to Expand.

Because of the waterproof seal required, customers changing the battery is not supported.  Contact Aridea support for battery issues.

How long does a charged battery last? Click to Expand.

The outdoor unit will last approximately 30 days on a fully charged battery, depending on how often alarms are triggered and Bluetooth mode usage.

The indoor unit will last approximately 3 hours on a fully charged battery.  This is because it acts as the "communication base", handling all data transmissions to/from the outdoor unit, and to/from the Wi-Fi network.  Because of this, it is strongly recommended that the indoor unit is left connected to the charger and plugged into a 120VAC outlet.  See pages 24-26 of the Owner's Manual for more details.

Additionally, by leaving the indoor unit plugged in, it will be ready to go with a full charge when the outdor units battery is low.  This way, your pool alarm system will always be powered up and ready!  

Can the alarm be turned off so it doesn't disturb my neighbors at night? Click to Expand.

Yes.  Hibernation mode will disarm the system for 24 hours or until it is turned back on, whichever happens first.  See pages 37-38 of the Owner's Manual for more details.

Note: Use Hibernation mode responsibly and at your own risk.

How do you keep the unit from going into the filter box? Click to Expand.

The Pool Guardian Pool Alarm System includes a tether line.  It is recommended to tie the pool unit to something or to use the included suction cup.  See page 27 of the Owner's Manual for further details.

Does the alarm need to be turned on & off manually if we're in the pool or done swimming? Click to Expand.

You will need to disarm the system before using your pool.  You can manually rearm the system when you are done using your pool, otherwise the system will rearm itself after 20 minutes without disturbance.  See pages 21-36 of the Owner's Manual for additional details.

Will it alarm without Wi-Fi? Click to Expand.

Yes, if it cannot connect to a network it will the alarm can still be triggered, causing the indoor and outdoor units to sound the alarm. However, the system works best with internet connectivity, since this allows for settings adjustments and control through the app.

Does the app alert you to movement in the pool if you're not home? Click to Expand.

Yes, after the initial setup, you will receive alerts through the app no matter where you are, as long as your phone has data connectivity. You can also cancel alerts through the app, and turn off app notifications if you prefer.


My Bluetooth connection dropped off while I was playing music. Click to Expand.

There is a known issue where the Bluetooth connection will drop if you are using an Android device and you turn the music to full volume.  We are working to correct this issue and expect to be able to send an update to correct this in the near future.

I cannot connect to my Wi-Fi network. Click to Expand.

Some EERO Wireless Mesh Network hardware users will experience issues setting our device up initially, but there is a fix. If you are using the newer 6 or 6 pro, enable a guest network and set it's password to be numerical. If you are using the older generation 5 or 5 pro then you will need to disable DNS caching. 

I turned both units on during initial setup and neither one is the Outdoor Unit or my second unit is blinking dark blue. Click to Expand.

This sometimes happens, to manually swap the dark blue blinking unit to associate as the Outdoor Unit:

  • Power Off(10-12 second power button press).
  • Power On(5-6 second power button press).
  • Immediately when white lights come on press and hold the "swap" button opposite the power button until lights turn solid teal blue.  Now the unit will go into outdoor mode.  You should now see red lights that eventually turn off.  You can shake the unit slightly and it will wake up and alarm.  Set Activation Threshold accordingly and test/deploy. 

My outdoor unit periodically alarms a time or two for no apparent reason, and shows it is not online or no battery or wireless signal information is available in the app? Click to Expand.

This is likely caused by interference or the units being too far apart.  These are wireless devices and do have a maximum distance of reliability.  Try positioning the indoor unit closer to the outdoor unit.  The outdoor unit does not require your home wireless instead it requires the indoor unit’s wireless.  Therefore, location matters.  A quick way to test is to bring the two units together into proximity (10-20 feet) of the wireless access point or router your home uses for wireless.  If everything works well there, then it is just a matter of finding optimum locations for the two units.

Factory Reset! Click to Expand.
Sometimes your issue is not really one of the above, so in that case it may be needed to reset this to a state that is like when you first received it.  To do that please do the following.
  •   Step One: Turn off outdoor unit or unit that is blinking red.
  •   Step Two: Turn on the indoor unit.  Once it is blinking blue or fading in and out Teal then
  •   Step three: press and hold the minus button until lights are flashing white, continue to hold until flashing speeds up. 
  •   Step four:  Release that button and unit will shut down.
  •   Step Five: Power unit back on.  Now the unit is reset completely and will go through the “purple” lights.  Leave it blinking dark blue.
  •   Step six: The other unit.  If it is in outdoor mode you will need to power cycle it and when starting up press and hold the “light button” opposite of the power button until the lights turn solid teal, release button and now you are in indoor mode.
  •   Step seven: Repeat steps one through five.
  •   Step eight: In the app go into the device you previously added and delete the device from the app via the options menu in the dashboard.
  •   Step nine:  Start from scratch.  Provisioning one unit for indoor (make sure this one is plugged up) and one unit for outdoor(make sure this unit is fully charged) as per the manual/quick start guide...if you cannot get the second unit to automatically go into Outdoor(red light) mode then perform the corresponding troubleshooting above…specifically “I turned both units on during initial setup and neither one is the Outdoor Unit or my second unit is blinking dark blue”.

I cannot get the Charger Port Plug inserted. Click to Expand.

To properly insert the charging port plug, slowly work the rubber plug connection line about halfway into the housing. Once the connection line is halfway in, you should be able to insert the plug all the way in without the connection line bunching up.  Video example below.

I am having issues when swapping.  Click to Expand.
  • Make sure you are initiating the swap from the outdoor unit when red lights are on.  If you happen to initiate a similar button press when white lights are on you will just be manually switching into the alternate mode.