Good luck with your Frontier!
Not to be a downer, but you just graduated from "Plug and Play" to "Plug and Pray".
About a decade ago, our lab bought a DeBrie TAI Archive 35mm printer from France that ran on 208V. Despite having a trained Electrician install the power outlet, we had numerous problems with the unit until the power lines were audited with a chart recorder. Turned out the electrical infrastructure for the building we were in was rather old and the transformer outside the building had to be replaced.
The typical US voltages of 110 and 220 were within acceptable range for our US made equipment, but something was not kosher for the 208v hook-up.
Long story short, if you have elderly wiring, don't go jumping to conclusions like we did that the equipment is faulty. Hire a competent electrician to hook it up and if you have strange, intermittent problems, do a line survey to be sure your power is good.