Unit does not respond to timer settings; turns on or off at incorrect times or ignores schedule.

Safety: No internal work is required for basic timer troubleshooting.

• Set current time: Follow the Black+Decker manual to correctly set the current time on the unit before programming the timer.
• Reprogram timer: Clear existing timer settings and re-enter desired ON/OFF times, ensuring AM/PM (if applicable) is correct.
• Avoid power loss: Frequent unplugging or power outages can reset the clock. Use a surge protector and keep the unit plugged in.
• Control board issue: If the timer still behaves erratically, the control board's timer circuit may be faulty and require replacement.