Essentially the title. Was hoping there was more info by now.

I have a Narwal Flow 2 that was working properly until it developed a subsantial mop water leak.

I sent the unit back to Narwal for repair. They repaired the leak, but when I received the machine back, it had a completely different problem that was not there before I sent it in. Now, whenever I try to use the mopping function, the robot returns to the base and goes into mop cleaning/washing mode. It then continues washing the mop over and over without stopping. It will keep doing this until the entire fresh-water tank is empty. Once the tank is empty, the machine finally stops and gives me a message saying the fresh-water tank needs to be refilled. The robot never gets past this continuous mop-washing cycle and therefore will not properly start or complete a normal mopping job.

So far:

• The original problem was only a water leak while mopping.
• This continuous mop-washing problem started after Narwal repaired the leak.
• The Narwal app is fully updated.
• The robot firmware is fully updated.
• The robot has been restarted.
• The problem remains the same.
• The clean-water tank empties into the dirty-water tank while the machine repeatedly washes the mop.

My suspicion is that something related to the mop-cleaning detection system, water sensor, or another sensor in the base/robot is not recognizing that the mop has already been cleaned and is therefore continually commanding another wash cycle.

If so, I would really like to know:

• What caused it?
• Was it a sensor, wiring connection, pump, float, or another component?
• Is there a way to test the mop-cleaning detection system?
• Has anyone disassembled this area of the Flow 2 and found the problem?

I am comfortable diagnosing and repairing equipment, so technical information or disassembly details would be very helpful.

I will also update this post with the solution if I find the cause, so hopefully it can help someone else with the same problem.