How to Fix Epson Error Code 031006 (0x9A) – Replacing the F1 Fuse on the Mainboard

Question:

I got a 031006 error code (also known as 0x9A) on my Epson printer. When I cracked it open to inspect the mainboard, the F1 fuse appeared to have blown. I tried, and it is a problem you face. Is there a spare fuse that I can use to fix this myself?

Answer:

⚠️ What Is Epson Error Code 031006 (Or 0x9A)?

Error 031006 (occasionally displayed as 0x9A) is a fatal hardware error typically associated with the printhead circuitry or mainboard. In many instances, it is triggered by the F1 fuse blowing on the mainboard. That fuse guards the board at any time a short or surge occurs, which is commonly caused by a blown printhead, incorrect cabling, or statics.

If you’ve determined that F1 is toast, that generally means you’ve found your problem. Replacing the F1 occasionally got the board back to life — as long as the underlying issue (like a shorted head) had been fixed, too.

🔧 Mainboard Replacement Fuses for Epson

Yes, we do stock replacement fuses for just this scenario. Our F1/F2/F3 replacement fuse kit is available on our website here:

👉 F1 Fuse (also F2/F3) through Epson Mainboard – Errors 0x9A or 031006 Solution

3F for Epson Mainboard Fix Error 0x9A or 031006 on WF-7720 WF-7710 WF-3640 ET-8550 XP-15000.

Compatible with several Epson models, including Fuse.

• WF-7710 / WF-7720
• XP-15000
• ET-8550 / ET-8500
• WF-3640 and others

SMD fuses are supplied with the kit to solder in place of the blown fuse. You’ll require standard soldering tools and a steady hand (tweezers and a rework station for the greatest results).

Tips for Detoxifying the Fuse Flawlessly

Check the short: Ensure that the short that blew the fuse is corrected before replacing it. Common culprits include:

• A shorted printhead
• Damaged FFC cable
• Improper head installation

Test with a multimeter: Check continuity across the fuse after the replacement.

Take care to test: Once you replace the fuse, initially power the printer without the printhead connected to confirm that the board isn’t further damaged.

Printer problems like these are often hands-on and precision work, so we cannot provide remote diagnosis or one-on-one repair guidance. However, we also offer an in-house printer repair facility [https://bchtechnologies.com/printer-repair-service], and due to demand for our services, repairs are accepted on a strictly first-come-first-served basis, and there may be a small queue for new drop-offs. You can access our complete unit repairs or on-board diagnostics; however, we know that repairs on your own are the most budget-friendly. This is why we highly recommend that you utilize available online resources. Visit our YouTube channel [https://youtube.com/@bchtechnologies] and use the search tool (next to the “About” tab) to check for videos of Epson mainboard repair or error code 031006. With hundreds of videos in our library, it’s the best way to find what you need — plus, YouTube may, in turn, recommend helpful videos from others in the community.

Again, thanks for selecting BCH Technologies! We’re here to assist your repair efforts wherever possible, and we hope you can get your printer back up and running soon!