Microwave shows E7 and stops; turntable may not rotate and fan may not run.

Safety first: Unplug the microwave before accessing the bottom panel or internal components.

• Check for mechanical obstruction:
  • Remove the glass tray and roller ring.
  • Inspect for food debris or broken glass around the turntable coupler.
  • Ensure the coupler is not cracked and spins freely by hand.
• Test without tray: With the tray removed, run a short test cycle. If E7 does not appear and the coupler turns, the issue may have been a jam.
• Access turntable motor:
  • On many Black+Decker models, the motor is mounted under the cavity floor and accessible from the bottom.
  • Remove the bottom cover (if present) and locate the small round motor.
  • Check wiring connections for looseness or burning.
• Replace motor if seized: If the motor shaft does not turn freely or shows signs of overheating, replace the turntable motor with the correct Black+Decker part.

If E7 continues after motor replacement and wiring checks, the control board motor relay may be faulty and should be evaluated by a technician.