BenQ DW1800 Power Calibration Error

[qanda]This thread is about the Benq DW1800. Click here to see full specs[/qanda]Hi, I am an owner of BenQ DW1800, and everytime I write a DVD, I get “power calibration error”.

At first few months of my bought it was fine, but now I get this error. I noticed that this burner didn’t work for the first time when I got a new UPS. Now even when I don’t use the UPS it doesn’t work.

What should I do? Thanks.

Not problem related, but my other BenQ DW1800 don’t work and I noticed they don’t work at the same case.