Follow these steps for when a printer stops moving and blinks red light.

Question:
I’ve been having a problem with my new printer. At first, it stopped moving, and the green light turned into a flickering red light. I checked the ink, turned the printer off and on several times, and tried a head cleaning from my computer. The display screen of the printer and ink levels show that the cleaning is mainly taking place, as the physical cleaning or movement of the printer does not work. Now, when I power it on, no lights (green, yellow, or otherwise) come on except when I press the feed button, which still works. What might be causing this, and do you have any advice?
 
Answer:
And thanks for contacting BCH Technologies. We are very sorry for the delay in responding to your concern. Printer problems can be frustrating and time-sensitive, so we want to ensure that we turn around the most thoughtful, detailed response we can. We would also like to take this opportunity to express our appreciation for your patronage and support, particularly on our YouTube channel (https://youtube.com/@bchtechnologies). Your comments matter and allow us to become more technically able and provide better services.
Now, I'll go ahead and get to your issue more precisely.
 
Diagnosing the Problem
Going from the description you provided, it seems that the mainboard for your printer is not turning on but some features such as the feed mechanism which runs off a sub-board (aka breakout board) are operating. That indicates a problem with the mainboard or its connections. Here are some steps to help troubleshoot and possibly resolve the issue:
Back to Mainboard Connections & Components

• Check FFC: Check all flat flexible cables (FFC) connecting the mainboard. Flapping or broken tether cables can interrupt power and communications. The FFC cable for the control panel is essential for the mainboard's functionality, so please take a look at it carefully.
• But, if you find them damaged, you can replace them with Control Panel FFC Cable (https://bchtechnologies.com/l1800-control-panel-mainboard-9-pin-ffc-connector-cable/).

Check for Damage on the Mainboard

• Fuses: Power surges can cause the minifuses on the mainboard to blow, which may prevent them from powering on. If you suspect one is blown, check it with a multimeter—fuse check.
• Power Distribution— The QF601 transistor on the mainboard. A bad QF601 can cause symptoms like what you’re seeing. You can get information on this part at QF601 Transistor (https://bchtechnologies.com/transistor-qf601-for-mainboard-cb53-main-l1800-1390-1430-epson-printers-fix-no-power/)

Inspected the Printhead and Cables

• Inspect the printhead's FFC cables for proper connection and damage. In some cases, a fried printhead and/or fried printhead cables can also cause the printer to fail to initiate.

Reading the Error Code

• When the mainboard is powered on, the printer probably reports an error for investigation. We also made a helpful video that shows how to access and understand error codes: How to Read Printer Error Codes (https://youtube.com/shorts/FPZzpyYuZLE).

Additional Considerations
Printer issues are a tricky business to troubleshoot. As a result, we cannot offer remote troubleshooting, advice, or printer repair assistance.” However, we provide on-site, in-person inspection and repair services at our diagnostic center (https://bchtechnologies.com/printer-repair-service).
Since the demand is so high, first come, first serve, it could take several weeks to get your printer dropped off.” We fix all printers or parts for which guidance is provided. That said, we recognize that our rates may not be the lowest. As for self-help solutions, we encourage you to check out online resources, including our YouTube channel (https://youtube.com/@bchtechnologies), and use the search icon on our channel’s homepage for topics. YouTube may also recommend videos from other channels that can help you more.
 
We appreciate your contacting us again. Thank you for your patience. We hope the above solutions will help you get rid of your printer problem.