Check the “Standard VCH-1005A Manager” display on the Windows PC (to view it, start a VNC session via the Applications menu to time[hb|ke|yg]). Green numbers are good, red are bad. Here's an example of how it should look:

Report any red numbers to Brett ASAP. if you see mention of 'Battery', the maser has lost mains power and is running on it's UPS. If so, tell Brett immediately.