Fridge Leaking Emergency

For some reason I can't get into the group normally; hence this new message.
I've found the culprit, behind a panel about halfway up the back of the freezer compartment, but have no idea how to get into it. Or whether I should. The fabulous owner's manual goes into great detail about removing doors, but mentions nothing about unclogging drains. And the fabulous Installation Manual is the same pdf as the Owner's Manual. My Manual, in the icemaker section, does have a nice recipe for a G & T which I believe I'll have while phoning a repair guy. If you've ever tried to talk to a Fridigaire or Electrolux tech rep I believe you're speaking to India and they'll tell you to refer to the Owner's Manual. Yek!
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