Page 10
3.2 Controller Troubleshooting
3.2.1 Display Is Not Illuminated
Check the voltage between the red and green wires at the red terminal bar (terminals 1 and 4). If the voltage is
between 8 and 10 VDC, check the polarity. The red wire is positive (+) and the green wire is negative (-). If the
voltage and polarity are correct, replace the control panel. If the voltage is less than 8 VDC, go to the power center.
1. At the power center, check the voltage between the red and green wires at the red terminal bar (terminals 1 and 4).
See Figure 5. If the voltage is between 8 and 10 VDC and the polarity is correct, but there is less than 7 VDC at
the indoor control, check the wires for the following:
a. Broken or shorted red or green wires.
b. Wire size. The minimum gauge for one control no more than 300 feet away from the power center is 22 AWG.
To ensure a lower drop in current, use larger wire (16 to 20 AWG)
2. If the voltage is less than 7 VDC, check the following:
a. Transformer secondary wires (two yellows). See Figure 6. If the voltage is less than 22 VAC, check the
incoming (primary power) to the system.
b. If the power to the transformer primary is less than 105 VAC, contact the power supply company.
c. If the voltage to the transformer primary is above 105 VAC, but the transformer secondary is less than 22
VAC, replace the transformer.
d. If the secondary voltage is 24 to 28 VAC, turn off the power.
e. Remove the fuse from its holder and do a continuity test. If there is no continuity, unplug all the Jandy Valve
Actuators (JVAs), replace the fuse (3.15 amp), and turn on the power. If the fuse blows with all JVAs unplugged,
the circuit board is damaged and needs to be replaced. If the fuse does not blow, plug a JVA cord into the Intake
JVA Socket. Test the JVA by switching to SPA. If the fuse holds, remove the tested JVA and plug the next JVA
into the Intake JVA Socket. Continue until all JVAs have been tested or the fuse blows.
To Next Page
Loading...
Need help?
General
