I have a PW2 connected to a solar system. It was working tolerably well until the unit started making a noise like a fan with a worn out bearing would make. I have been on the phone to Tesla a number of times and have sent them a video which records the noise made by the unit. On each occasion they say they will escalate the report to the next level and nothing gets done. I am now concerned about the value of their 10 year guarantee, given that the unit has only been in operation for 8 months.
When you speak to their customer service people they say all the right things and they have scripts to make callers feel better, but there is no useful response. I am beginning to regret specifiying a Tesla, and under no circumstances would I buy one of their cars if that is the level of service I can expect.