Moved from here.
Sorry for pulling up an old thread but after having the exact same symptoms as the OP, in the old thread i wanted to reach out for help.
I have an gently used m500 that appears to be connected to the control unit properly and yet it doesn't do the normal self check or power on to the cleaner. I also cannot change the settings on the control unit. For example trying to change the cycle time by pressing the button and nothing happens. The power light is on and I can reset the filter status as well as connect to bluetooth. The cleaner just doesnt move. The impeller is clean and I checked the connection in the swivel on the cable and the connections are super clean and look brand new. I am not sure what else to check and I am having the same symptoms on my m500. I bought it in June of 2019.
Sorry for pulling up an old thread but after having the exact same symptoms as the OP, in the old thread i wanted to reach out for help.
I have an gently used m500 that appears to be connected to the control unit properly and yet it doesn't do the normal self check or power on to the cleaner. I also cannot change the settings on the control unit. For example trying to change the cycle time by pressing the button and nothing happens. The power light is on and I can reset the filter status as well as connect to bluetooth. The cleaner just doesnt move. The impeller is clean and I checked the connection in the swivel on the cable and the connections are super clean and look brand new. I am not sure what else to check and I am having the same symptoms on my m500. I bought it in June of 2019.
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