Whirlpool Microwave MT4155SPB2 Won't start or doesn't start

15 Amp, 125/250 Volt. Package of 2. Switches have 3/16 inch terminals.

This electrical safety fuse opens the circuit when a short or overcurrent occurs. Replacing a blown fuse can help restore power after the root cause is corrected, protecting controls and wiring from further damage.

• Protects the appliance by interrupting power during overcurrent or short-circuit events
• When open/blown, the appliance may be completely unresponsive
• Helps prevent damage to control boards and wiring during faults
• Often fails after a component shorts or a power surge occurs

• Disconnect power to the appliance before servicing
• Use a multimeter to test the fuse for continuity; replace only if open
• Install a fuse with the exact same rating and form factor as the original
• If the new fuse blows again, stop and diagnose the underlying fault; consider service for high-voltage systems