the self-empty base won't charge the robot, robot just sits there and the base light is off.

Diagnosis

When the Shark AI Robot Vacuum RV2001 fails to charge and the base station light remains completely off, you are dealing with a total break in the electrical circuit. This is typically caused by a failure in the power delivery chain—either at the wall outlet, the power brick, or the charging pins. Because the base light is off, the issue is likely not with the robot's battery, but with the base's ability to receive or distribute power. If the light is off, the base is not "heartbeating" or sensing the robot. This happens most frequently due to oxidized metal contacts (forming a non-conductive layer of grime) or a tripped internal fuse in the power adapter. In some cases, the RV2001's docking ramp can shift slightly, preventing the robot's rear charging plates from making a flush, high-pressure connection with the spring-loaded pins of the base. You can confirm this by checking if the base light flickers when you manually push the robot firmly into the dock; if it does, the issue is alignment or contact cleanliness.

How to Fix It

1. Disconnect the power cord from the wall outlet and the back of the self-emptying base to ensure no current is flowing during cleaning.
2. Inspect the two gold-plated charging pins on the front ramp of the base. Use a cotton swab dipped in 70% or 91% isopropyl alcohol to scrub each pin. If you see black or green oxidation, use a clean pencil eraser to gently scrub the metal until it shines.
3. Flip the robot over and locate the two metal charging contact plates on the underside/rear bumper. Use the same isopropyl alcohol method to remove any dust, hair, or "film" that has built up. Ensure the plates are not recessed or pushed inward.
4. Check the power cable for any kinks, frays, or pet chew marks. Ensure the plug is seated fully into the base's power port; these can sometimes wiggle loose during the vacuum's high-suction emptying cycle.
5. Plug the base into a known-working wall outlet (avoid using a surge protector or extension cord for this test to rule out external power failures).
6. Manually guide the robot onto the dock. Push it firmly until you feel the spring-loaded pins engage. The base light should illuminate immediately upon a successful handshake.

If That Didn't Work

• Test the Power Adapter: If the base light remains off regardless of the robot's position, the AC adapter has likely failed. If you have a multimeter, test the output voltage of the power brick to ensure it matches the rated voltage on the label. If it reads 0V, the adapter needs replacement.
• Check for Obstructions: Inspect the docking ramp for small pebbles or plastic debris that may have been sucked up and deposited on the charging pins. Even a microscopic layer of plastic can prevent the electrical circuit from closing.
• Hard Reset the Robot: Remove the battery pack from the robot for 30 seconds and then reinsert it. This clears the internal logic board and can sometimes resolve a "sleep mode" glitch where the robot refuses to signal the base to start charging.
• Verify Base Stability: Ensure the base is on a completely flat, hard surface. If the base is on a thick rug, the robot may be sitting too high on the ramp, preventing the charging plates from touching the pins. Move the base to a hard floor and retry.

Heads Up

• Avoid using abrasive steel wool or sandpaper on the charging contacts, as this removes the gold plating and will lead to faster corrosion.
• If you use the mopping attachment, always wipe the robot's charging plates dry before docking. Moisture from the mop kit can cause electrolysis, which rapidly corrodes the metal pins.
• Keep the area around the base clear of cables. If the robot gets tangled while trying to dock, it can bend the charging pins on the base, leading to permanent misalignment.
• Periodically clean the base's sensors with a dry microfiber cloth to ensure the robot can find the dock accurately on the first attempt.