When I turn on the unit and attempt to press 'A' on the controller to proceed, nothing happens. Zilch. Nothing lights up on the controller. Batteries are good.

If the remote is UV you can see if it is working by pointing your camera phone at it and look for a violet color when you press the remote button. If you get nothing change batteries AGAIN, if nothing still, this is something inside the unit and probably not easy to work on.

remove the front door and screws securing the door to the front cover,then remove front cover and look for the thermal cutoff fuse as if this is open it will kill all power to unit,it should be on the blower wheel housing

The only other option you can try is remove the batteries for at least 60 seconds in an attempt to reset the microprocessor ic, if this fails! you are further off replacing the unit.

Seems like your controller is not working. Try to change its batteries.
With new batteries try the following:
1. Turn the controller ON. Wait until green light stops blinking.
2. Turn the helicopter ON.
3. Give it throttle few times until it starts working.

Sometimes controller can still work even if has a blinking light. But these cases are very rare.

this machine needs a new timer. or, maybe a door switch.. call a service tech...

Step 1: Remove the batteries

Step 2: Press the power button (red button) on the remote control 5 times.

Step 3: Replace the batteries and your remote should work fine.

Go to Advance Functions Page 23 of your manual.
You have to turn Option 0160 to "on" or "4"

1) Press System
2)Press and Hold blank center key until the display changes.
3) Change settings as required (Cursor to option 0160, then hit other cursor to change from 0 to 4)
4)Press Done to exit and save changes

Make sure the mouse is turned on and the batteries are in correct. Make sure everything is on and plugged in all the way. A light should come on in the mouse and controller. Do not have them too far apart. This is infrared and anything can block it. Then try pressing the buttons again. Do the at the same time if it not work doing them separate.

I HAVE THE SOLUTION TO THIS PROBLEM.

Confirmed with Samsung tech support. Problem is with remote. to fix, simple take the batteries out of the remote. Press and hold the UP Volume button for 2 Mintues (no cheating, it has to be at least 2 minutes), this Reset's the Remote Control. Put the batteries back in. Bob's your uncle. all fixed.