UPDATE - 03-15
Okay, so I (clearly) survived the night, along with many since, as I have awaited the backordered OEM part.
It finally arrived.
So today, I pulled it out the unit, and fully-unplugged/disconnected the unit. It's worth noting that, right after there was the kaboom up until today, the clock has read merely:
This is only interesting because try as I might, I cannot find ANY manufacturer that has "75" as a fault code.
Regardless, I replaced the heating element, turned everything back on, and... no luck. Oven's still dead. Rangetop works fine. Just nothing digital.
The clock - and I did my best to accurately reproduce this, both in brightness and shape - however NOW reads:
...which, quite aside from the fact that I don't even need to LOOK to know "8 Phi"/"B Phi" isn't a valid fault code. Hell, even if I assume it's trying to phonetically tell me "eighty-five" (...or "beefy"?): no luck there either. Neither appears to be a valid code for any mfg.
Worse, I can't help but feel like it also looks like it's flipping me off now.
I'm guessing when it arced it grounded to the body of unit. New ECB is next. Sigh.
Oven heating element just blew (WOW!). Went & killed the breaker. Clock on range is still running? Do they have a battery backup or something? Is it possible the breaker (a gfci breaker, which was a new one on me, also) is still letting 110 through?
My first day in here I took a circuit tracer to every outlet, switch, and fixture in the place (that's totally normal, right?). I'm damn positive it was the correct breaker.
This is a rental place here, and the wiring is JAN-KY. Like 15 outlets (5 rooms) on the same 15a circuit janky. Like 100A service on a 4Br 3ba that is itself only 1/2 of a duplex janky. Like half the outlets couldn't hold a plug in em when I moved in janky.
How worried should I be at this point? I'm prepared to assert with some confidence after the Tesla Coil BeyouuuutGrongGrongGrongBzzzzzzzat! sound accompanied by the ballistic fragments of metal and at least MOST of its magic smoke's release that continuity was broken. It's also in the 40's here, so I'd really prefer NOT to kill the main if I don't gotta.
The unit is a Admiral (which I swear I'd thought was a Harbor Freight brand): LER3330AAZ https://www.partselect.com/Models/LER3330AAZ/
To be clear: I'm asking how dangerous, if at all, is it to leave plugged in, possibly to a (partially?) live circuit? Getting it pulled away from the wall ain't gonna be pretty. I live alone (no little hands at risk. Just me. And I prolly have it coming...)
Edit: that is, leave it until it's full light and I can manhandle it into the open. I'm twitchy because that sure LOOKED like a ground fault, and it's all stainless... I don't really wanna move it until daylight.