Microwave does not start; display works but cooking will not begin when pressing Start. Sometimes a brief click is heard and then nothing.

Safety first: Unplug the microwave from the mains. Microwaves contain high-voltage components that can retain a dangerous charge even when unplugged. Do not touch the high-voltage capacitor or magnetron area unless you are trained.

Basic checks (user level):

• Open and close the door firmly several times to ensure the latches engage correctly.
• Inspect the door for visible damage or sagging hinges that might prevent proper closure.
• Check that no food debris or warped containers are obstructing the door frame or latch area.

Technical checks (technician level):

• Remove the outer cabinet (after unplugging) and locate the door interlock switches on the latch bracket.
• Using a multimeter, test the primary, secondary, and monitor switches for correct continuity according to their NO/NC configuration when the door is opened/closed.
• Replace any switch that shows open circuit when it should be closed, or vice versa, or has intermittent readings when the actuator is pressed.
• Inspect the plastic latch hooks on the door and the latch bracket for cracks or misalignment; replace if worn or broken.

If you are not experienced with microwave repair, contact an authorized Balay service technician, as incorrect work on the safety interlock system can be hazardous.