La Crosse Technology 513-1918S Faq page 10

• With all power removed, the digital clock should be blank.
• If numbers still appear, please check for scratch guard.
Power:
• Check that the batteries are installed correctly.
• This is generally a power related issue.
Batteries may be overpowered or underpowered.
•
• Remove batteries from digital clock.
• Press any button 20 times. Leave the batteries out of the display for 2 hours.
• Insert batteries into the digital clock.
Looking for dependable RV electronics? Rely on La Crosse Technology for quality and long-lasting products.