Cut the solar probe wire and carefully remove the outer jacket of the jumper wire to expose the thin wire inside (note that the thin wire also has a jacket. Common jumper wires include two-conductor wires and). four-conductor wires. Purchase a new probe to match the center wire. If the original connection wire has two conductors, purchase a two-conductor probe.
Connect each core wire of the jumper wire to the metal wire corresponding to the color of the outer sheath, wrap the exterior tightly with waterproof tape, then insert the new probe into the solar barrel to finish.
As for the old probe that hasn't been removed, push it into the bucket and leave it alone. If you need to remove them, you need to remove one or two solar vacuum tubes, fill them with water, flush the broken half of the probe to the vacuum tube insertion hole, and hang it with a wire.