OK, so now I'm having difficulty opening the cover of the heater....
I pull on the black knob at the bottom and it sticks at the corners. I've used WD40 - maybe I need more? Im wondering if I'm supposed to pull up on it (so it pops up) or pull it out and off completely....Again, afraid of breaking something...
I've checked the manuals in the Document center, but they dont really address anything
this basic....and yes, Im starting to feel like an idiot.....