I just put in a new 220 circuit to run a rackmount UPS for some servers.

However, there are some issues with the ups, and it notes that the input voltage is only 200v, versus the expected 220v.

This plug is the only one present in the circuit, and I am fairly sure it is wired correctly. What could be the cause of the low voltage? Is it something that can be tweaked in the meter by an electrician? Is it something I need to bring up to the electric company?

I also realize it is somewhat normal to have variances in voltage, and shouldn't expect exact numbers. I wouldn't care if my ups didn't seem to. 20v seems like a fairly significant dip in voltage to me anyways though.

I am in a single family style home, 200a service in central PA