[Strange information from the sensors Toughpower DPS G 750]

I have a strange problem with my power supply (DPS G 750W): every day i have alerts in PC app about min/max values of different channels (5V, 3.3, temperature). For example temterature cat be shown as 136 deg C for 1 to 20 sec, or can be shown as 0. I can have instant peak 220V on 3.3v channel (or 0), also +70v on 5V. Fan speed can be shown as 0, but I see, fan is running.

I sened the detailed question to https://my.thermaltake.com/csTech.aspx more than 3 weeks ago and have no answer.

On most times i have no problem in mobile app (or I just not seen them). 

Also problem with data on the web site: i see only power consumption, no other data.

Mains supply stable from a good UPS.

Can anyone explain the problem? Is a repair required?