How do I fix the Pentair ScreenLogic app when it will not connect on an iPhone?
Answer
ScreenLogic usually needs the iPhone on the same local Wi-Fi as the ScreenLogic interface, with Local Network permission enabled for the app. If the app says it cannot find Wi-Fi, reconnect the phone to the home network, force-close the app, and confirm the ScreenLogic system itself is online before reinstalling.
Follow these steps
Join the same home Wi-Fi
On the iPhone, open Settings > Wi-Fi and connect to the same network the ScreenLogic interface uses. Avoid guest networks and cellular data while testing.
You should see: The iPhone shows a Wi-Fi connection to the home network before ScreenLogic is opened.
Allow Local Network access
Open Settings > ScreenLogic and enable Local Network if it is off. Also allow any requested local discovery or local network prompts the next time the app opens.
You should see: ScreenLogic has Local Network permission and can search for the interface on the LAN.
Force-close and reopen the app
Fully close ScreenLogic from the app switcher, reopen it, and try connecting again. If a Pentair or ScreenLogic login is required, use the official credentials for that system.
You should see: The app finds the ScreenLogic system or shows a clearer error than cannot find Wi-Fi.
Reinstall only if the interface is confirmed online
If another household phone can still control the pool system, delete and reinstall ScreenLogic on the new iPhone from the App Store, then sign in and grant Local Network access again during setup.
You should see: The new iPhone connects successfully, or both phones fail and the ScreenLogic interface itself needs attention.
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Extra tips
What to look for: A cannot find Wi-Fi or connection message in ScreenLogic, whether the iPhone is on the 2.4 GHz or main home network, and whether iOS Local Network access is allowed for the app.
Before you change anything: Confirm the iPhone is using the same home Wi-Fi used by the ScreenLogic system. Note any exact error text shown in the app. Avoid factory-resetting the ScreenLogic interface until phone-side checks are done. Download ScreenLogic only from the official App Store listing.