u/Puzzleheaded-Quote41

I have an Enphase solar setup with an IQ Combiner 3 (X-IQ-AM1-240-3). Recently all 4 LEDs on the gateway started blinking red continuously. I tried power cycling the combiner multiple times, but the issue keeps returning.

The system is out of warranty. I contacted Enphase support and they told me the gateway/Envoy has failed and needs replacement. Their quote was around $1200 including the replacement unit and professional installation.

I’m fairly comfortable working with electronics, PCB swaps, and low-voltage wiring, so I’m wondering whether this is realistically a DIY repair.

A few questions for anyone who has done this before:

• What exact gateway/Envoy model should I be looking for?
• Is the replacement just the internal PCB assembly or the full Envoy unit?
• Can used or refurbished units be paired successfully?
• Where is the best place to source one?
• Any installation gotchas or activation/pairing issues with Enphase?
• Has anyone successfully replaced the Envoy board inside the IQ Combiner 3 themselves?

Trying to figure out whether this is a reasonable DIY project before spending $1200. Any advice or part numbers would be appreciated.

Found a Lenovo ThinkCentre at a thrift shop for cheap, but the side panel is locked and it didn’t come with the keys.

I’d like to open it up to upgrade the system., but I’m not familiar with Lenovo’s case lock mechanism on these systems.

What’s the safest/non-destructive way to open the panel without the original
. Is there a standard override/trick for these ThinkCentres?

Appreciate any suggestions from people who’ve dealt with these before.

I have a Tesla Gen 2 Wall Connector with significant damage to the charging cable (see photos). The outer black sheath is heavily damaged, and the wires inside damaged as well (the white is fully cut and couple of strands holding blue one).

The unit itself still powers on and shows a green indicator light, but I’ve stopped using it due to the visible cable damage. I’m trying to understand from a repair/EVSE perspective:

1. Is the cable on a Gen 2 Wall Connector designed to be fully replaceable as a service part, or is it effectively a sealed assembly?
2. In cases like this, is professional splicing/repair ever considered safe or compliant, or is full replacement always the only recommended route?

Not planning to attempt a DIY fix either way—just trying to understand what’s technically possible versus what’s standard practice in the field.