I'f you pull the white front cover off the IM you see a bunch of holes around the central gear. Take a piece of insulated wire with 1" stripped off both ends and insert it in the holes marked T and H. This jumps the thermostat and starts the cycle.

Once you hear a click you can remove the wire. The IM should continue around and eject, then refill. That thermostat requires 15 degrees to start the harvest cycle. If it doesn't harvest the next load after 2 hours, check that the freezer is below 15 degrees.

Look for frost buildup on back wall inhibiting air flow, you may stay below freezing but not below 15 degrees even if freezer seems cold.

You may need to have door closed or switch taped to power the IM, I'm not sure it it gets power if door is open, often not on bottom freezer models.

Also verify that you got the long white part of the harness back into it's clip against the mold.