What service code is being displayed?
See page 34 in
https://www.jandy.com/-/media/zodiac/global/downloads/h/h0325600.pdf?force=1
Audible Alarm
An audible alarm (beep) sounds once per hour, and only for the first service code,
when a SERVICE condition is detected. The alarm can be cleared by pressing and holding the SALINITY button (C) for 5 seconds. The audible alarm can be cleared for 24 hours or until the power to the unit is turned off and back on whichever comes first. However, the audible alarm will return if a new problem is detected.
NOTE The audible alarm can be permanently disabled by removing the jumper from J2 on the control/power center Power Interface Board (PIB).
Audible Alarm Volume Control
Audible alarm operation and volume control can be adjusted. To adjust volume control, press and hold the TEMPERATURE button (D) for 15 seconds. The system will beep once when pressed, once after 10 seconds and once after 15 seconds. Release the key after the third beep. Press the SALINITY button (C) within 5 seconds to enter the temperature change screen.
NOTE The boost cycle is normally activated after 10 seconds, however, if the key is held down until after the third beep at 15 seconds, the Boost mode will not be changed.
The system will display a ‘1’ followed by ‘F’ or ‘C’. Press the TEMPERATURE button (D) to move to the second parameter screen. The screen will display a 0, and the alarm volume will be fully reduced. The system will occasionally show a ‘2’ to display the screen number. Press the arrow button B to increase the volume and the arrow button A to reduce the volume. The volume increments from 0 to 100 in 20 steps. After each press of the arrow buttons, the alarm will activate to demonstrate the current volume level. When the alarm volume has been adjusted to the desired setting, press the SALINITY button (C) to confirm the new alarm volume setting. The change will be stored in permanent memory. If you do not wish to keep the change, wait 5 seconds, and the change screen will ‘time out’ and return to normal operation without keeping any changes to the system. Any changes made to the alarm volume will NOT be saved if this occurs.
