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EUFY·FAULT SYM INFO

eufy RoboVac won't connect to Wi-Fi

Severity: Info — the robot still cleans from its buttons or remote — only app features are offline 15C/25C/30CG30/G40L70X8X9/X10Omni S1E20
Last verified: 2026-07-06 Tools: phone with the eufy Clean app Time: ~20 min Difficulty: easy

DIRECT ANSWER

A eufy that won't connect is almost always fighting the Wi-Fi band or pairing state. RoboVacs join 2.4 GHz networks only, never 5 GHz, and the Wi-Fi light must slow-flash before the eufy Clean app can find the robot.
#meaning · #causes · #fix · #models — link straight to any section

COMMON CAUSES · RANKED

1

Router serving only 5 GHz MOST COMMON

eufy's Wi-Fi guide is explicit — RoboVacs connect to 2.4 GHz networks and cannot join 5 GHz; combined-band routers need the 2.4 GHz band visible.

2

Robot not in pairing mode

Setup only works while the Wi-Fi light flashes slowly ("ready to connect"); hold the reset/Wi-Fi button until it does before retrying the app.

3

Wrong Wi-Fi password

The password is case-sensitive — eufy suggests tapping the eye icon in the app to double-check it before connecting.

4

Phone permissions or stale network state

eufy's checklist enables location for the eufy Clean app, restarts phone and router, and forgets the robot's own SSID from the phone's Wi-Fi list.

HOW TO FIX IT

No battery or electrical work involved in this fix.

Put the robot in pairing mode

Press and hold the reset/Wi-Fi button until the Wi-Fi light flashes slowly, then keep the robot and phone next to the router.

Join the phone to 2.4 GHz

Connect your phone to the 2.4 GHz network the robot will use and re-enter the password carefully — it is case-sensitive.

Grant the app its permissions

Enable location services for eufy Clean (required for Wi-Fi setup on modern phones) and retry adding the device.

Reset the network chain

Restart phone and router, forget the robot's own SSID from the phone's Wi-Fi list, reset the robot's Wi-Fi, and run setup again.

Read the light to confirm

Quick flashing means connecting; only a solid blue Wi-Fi light means connected. If it never goes solid, contact eufy support with your router model.

MODELS AFFECTED

Model Status Firmware Parts Verified
eufy RoboVac 15C / 15C Max (T2128) active — Parts → 2026-07-06 · Source
eufy RoboVac 25C (T2123) active — Parts → 2026-07-06 · Source
eufy RoboVac 30C / 30C Max (T2118) active — Parts → 2026-07-06 · Source
eufy RoboVac G30 / G30 Edge / G30 Hybrid active — Parts → 2026-07-06 · Source
eufy Clean G40 / G40+ / G40 Hybrid+ active — Parts → 2026-07-06 · Source
eufy RoboVac L70 Hybrid (T2190) limited — — 2026-07-06 · Source
eufy RoboVac X8 / X8 Hybrid active — Parts → 2026-07-06 · Source
eufy Clean X9 Pro (T2320) active — — 2026-07-06 · Source
eufy Clean X10 Pro Omni (T2351) active — Parts → 2026-07-06 · Source
eufy Omni S1 Pro active — — 2026-07-06 · Source
eufy E20 3-in-1 Robot Vacuum active — — 2026-07-06 · Source

Models resolved from the series chips above. Support status comes from our EOL library; rows link to the matching parts and firmware pages.

Sources

Verification

OFFICIAL SOURCE

Last verified: 2026-07-06 · How we verify a fault code

Corrections

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