Zodiac Lm2-24 Output lights will not advance?

If the Zodiac LM2-24 output lights are not advancing, it may indicate a fault in the control system or a malfunction in the wiring. Check for any error codes on the display, inspect the connections for damage or corrosion, and ensure that the unit is receiving proper power supply. Additionally, consult the user manual for troubleshooting steps or perform a reset if necessary. If issues persist, consider contacting customer support for further assistance.