Epson ET-8550 Wi-Fi Error Code 202620: Causes, Fixes, and What You Can Do

Question:

What can be done to fix Wi-Fi error code 202620 on an Epson ET-8550? A customer asked whether there is a way to repair a persistent Wi-Fi error on the Epson ET-8550, specifically error code 202620, and whether this issue can be resolved without replacing major parts.

Answer

When it comes to Wi-Fi error code 202620 on the Epson ET-8550, this particular code is almost always associated with a malfunctioning or disconnected Wi-Fi board. Here's a detailed breakdown of what the error means and what you can do:

What Error Code 202620 Means

Error 202620 typically indicates that the printer cannot communicate with its internal wireless module. The ET-8550 relies on a dedicated Wi-Fi board that handles all wireless connectivity. When that board loses power, becomes physically disconnected, or fails electronically, the printer triggers this specific error.

Common causes include:

• Loose Wi-Fi board cable or connector

• Damaged Wi-Fi PCB (printed circuit board)

• Shorted or corroded contacts

• Faulty Wi-Fi card after a power surge or static event

• Incompatible replacement module installed

Steps You Can Take to Fix the Issue

1. Check the Wi-Fi Board Connection

Inside the ET-8550 is a small Wi-Fi module connected to the printer's motherboard through a ribbon cable or a shielding connector. If this cable becomes loose-especially after transport, vibration, or servicing-the printer may lose communication with the card.

What to do:

• Power off the printer and unplug it.

• Access the internal electronics through the appropriate rear or side panel.

• Locate the Wi-Fi board module.

• Ensure the ribbon cable and connectors are firmly seated.

• Inspect for visible discoloration, burn marks, or corrosion.

A loose connection alone is enough to trigger error 202620.

2. Replace the Wi-Fi Board

If reseating the board doesn't resolve the issue, the Wi-Fi module itself is most likely damaged. This is one of the more common outcomes with this error code.

The ET-8550 uses a very specific Wi-Fi/LAN internal module. Installing a generic or non-compatible board will not work-the printer firmware will reject it.

If a replacement is needed, you can use a compatible Wi-Fi board such as:

ET-8550 Wi-Fi J26H005 GP-11N BT Combo Wireless LAN Module - available from BCH Technologies
Compatible Wi-Fi Module for Epson ET-8550
(https://bchtechnologies.com/products/for-epson-et8550-et-8550-wifi-j26h005-gp-11n-bt-combo-wireless-lan-mini-usb-modul?_pos=1&_sid=852657e0c&_ss=r)

Replacing the Wi-Fi board usually restores full connectivity and clears error 202620 immediately upon reboot.

3. Perform a Firmware Reset (If Applicable)

While this error is almost always hardware-related, a firmware reset is sometimes worth attempting after checking the board:

• Unplug the printer for 10 minutes.

• Plug it back in and let it fully reboot.

• Re-enter Wi-Fi settings.

Again, this step rarely fixes 202620, but it can help confirm that the issue is not software-based.

A Note About Troubleshooting Support

Addressing printer issues can be complicated because they require physical inspection, electrical testing, and hands-on work that cannot be accurately diagnosed remotely. For this reason, we're unable to provide step-by-step remote repair guidance. However, we do offer in-person diagnostics and repair through our local service facility:
BCH Printer Repair Service (https://bchtechnologies.com/printer-repair-service)
(https://bchtechnologies.com/printer-repair-service)

Please keep in mind:

• We operate on a first-come, first-served basis due to high demand.

• It may take a few weeks before your turn comes.

• We can repair individual components or perform full-unit service.

• Our services are not always the most budget-friendly, so we encourage DIY solutions when possible.

For self-help, the best place to start is online research-particularly on YouTube. Visit the BCH Technologies YouTube channel homepage (https://youtube.com/@bchtechnologies)
(https://youtube.com/@bchtechnologies) and use the search icon to look up specific topics. With nine years' worth of videos, using YouTube search is the fastest and most accurate way to find what you need.

Thank you again for taking the time to contact us and for supporting BCH Technologies. Your questions help us continue producing educational content and sharing our knowledge with the community. If you have other concerns, feel free to reach out anytime.