Review on Color Tree Module IRobot Roomba by Tony Pearson

I bought a pair. Both installed. The left side worked as expected, which was the problem. The right wheel is frozen. I took out the battery and tried to maybe restart the system and get it working. That does not work. I put the old one back in Roomba and it worked fine. Only the right steering wheel now starts making noise, like the left one before. I'm not sure if I want to invest in another one and stop working.