Deye Wi-Fi Module Not Connecting — Troubleshooting Guide
A disconnected Wi-Fi module means you lose remote monitoring and cannot programme time-of-use settings from the SolarMan app. Most Wi-Fi issues with Deye inverters have simple solutions.
Common Causes and Solutions
1. Router Using 5 GHz Band
The Deye Wi-Fi module only supports 2.4 GHz networks. Many modern routers default to 5 GHz or use a combined band. Go to your router settings and either create a separate 2.4 GHz network or ensure the combined network broadcasts on 2.4 GHz.
2. Weak Signal
The inverter's Wi-Fi antenna has limited range — typically 10-15 metres through one wall. If your router is far away:
- Move the router closer or add a Wi-Fi range extender
- Use a powerline adapter to bring connectivity closer to the inverter
- The signal needs at least -70 dBm strength for reliable connection
3. Router Password or SSID Changed
If you changed your Wi-Fi network name or password, the inverter will disconnect. Reconfigure by:
- Hold the Wi-Fi module reset button for 5 seconds until the LED blinks rapidly
- Connect your phone to the inverter's AP hotspot
- Open SolarMan app and enter the new Wi-Fi credentials
4. Too Many Connected Devices
Some routers limit the number of connected devices. If you have many smart home devices, the inverter may be unable to obtain an IP address. Check your router's DHCP settings and increase the device limit if needed.
5. Firmware Update Needed
Older Wi-Fi module firmware may have connectivity bugs. Check the SolarMan app for available updates and install them over the local hotspot connection.
Step-by-Step Reset Process
- Press and hold the reset button on the Wi-Fi module for 5 seconds
- The LED should blink rapidly indicating AP mode
- On your phone, connect to the "AP_xxxxxxxx" network (password: 12345678)
- Open the SolarMan Smart app and go to Device Settings
- Select your home Wi-Fi network and enter the password
- Wait 2-3 minutes for the LED to turn solid green
- Verify data appears in the SolarMan app
When Hardware Replacement Is Needed
If the Wi-Fi LED does not light up at all, or the module does not enter AP mode after reset, the module may be physically damaged. In the UAE, dust and heat can occasionally damage electronics. Contact your Deye distributor for a replacement module — they are inexpensive (AED 100-200) and easy to swap.
Frequently Asked Questions
Why is my Deye inverter not connecting to Wi-Fi?
The most common cause is your router using 5 GHz — Deye only supports 2.4 GHz. Other causes: weak signal (inverter too far from router), changed Wi-Fi password, or too many connected devices on the router. Try resetting the Wi-Fi module and reconfiguring.
How do I reset the Deye Wi-Fi module?
Press and hold the reset button on the Wi-Fi module for 5 seconds until the LED blinks rapidly. Then connect your phone to the AP_xxxxxxxx hotspot (password: 12345678) and reconfigure through the SolarMan app with your home Wi-Fi credentials.
Can I replace the Deye Wi-Fi module myself?
Yes, the Wi-Fi module is a plug-in component that can be replaced without tools. Simply pull out the old module and insert the new one. Replacement modules cost AED 100-200 and are available from Deye distributors in Dubai.
