Does the fire panel have any faults indicated on it?
Are all fire exit doors free from obstructions (externally and internally)?
Are the front doors free from internal and external obstructions?
Does the recording equipment appear to be working?
Is the monitor working?
Are all the cameras working?
Check the date and time showing on the recording, are they correct?
Have all the stop buttons been checked for operation?
Are all the running belts straight and in line with the treadmill?
Are the power leads snagged beneath the incline rollers?
Do the consoles on the treadmills operate and has dust/debris been removed from underneath?