Model: Levo and Classic Digital Clocks and Timers
All or some of the symptoms may be present.
Digital Clock/Timer only displays dashes and time is not displayed.
Determine if cause is due to Transmitter broadcasting schedule and/or clock signal search frequency.
Digital Clock/Timer signal search frequency: every 10 minutes on the 5's (5, 15, 25, 35, 45, 55 minutes) of the hour, a clock's receiver turns on to search for a Transmitter signal to receive a time update.
Transmitter with External Antenna: were the clock(s) installed between the 7th and 38th minute of the hour? Clocks receive a time signal and update their time the 39th minute of the hour. If the Transmitter is not in an error mode, power the down the Transmitter, wait 30 seconds, and power back on. A power cycle forces the Transmitter to broadcast for eight consecutive hours.
Identify scope of clocks experiencing issue - single clock or all clocks/clocks in specific area.
All clocks/clocks in specific area: verify the Transmitter(s) is not in an error state. If multiple Transmitters on site, start with the main Transmitter and then proceed by verifying the other units.
If a clock(s) continue not to set its time, it may be due to the signal coverage at the install location or area.
Perform a signal check: take the clock with the issue to a known good signal area where clocks are set to the correct time with a solid colon. Apply power to the clock experiencing the issue. Press and release the clock's reset button in its setting panel. If the clock sets to the correct time, it’s a signal issue at the original installation location .A reset causes the clock to scan for a broadcasting Transmitter frequency.
If a clock(s) in a specific area continues not set its time, it may be due to interference preventing a clock from receiving a broadcasting signal.
When certain types of electronic light ballasts become defective they may radiate broadband noise, which can interfere with wireless devices. While interference issues are unlikely with the Primex system, high levels of noise present in the 72-76MHz range could potentially cause clocks which are located far from the Transmitter and also within the close proximity of these ballasts to not receive a signal. Very limited instances have occurred in the past, which has only been found to happen when ballasts become defective.
Determine if Transmitter broadcast schedule or clock signal search frequency is cause of clock not updating its time.
Single clock: reset clock to search for signal.
All clocks/clocks in specific area: check Transmitter status and resolve any issues.
Verify signal coverage at install location or area.
Verify no interference at install location or area - defective ballast.
If the issue cannot be resolved, additional troubleshooting is required.