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Page 26
Section 5. Troubleshooting
5.1
PDA Quick Troubleshooting Guide
The AquaLink RS PDA will stop communicating
anytime interference (such as a 900 MHz device)
prevents a valid signal transmission. When
communication is lost the PDA Handheld Remote
will lock on the startup screen until a good link
is again achieved, usually within a few seconds.
If communication is not reestablished within
a few seconds or this happens often, use the
troubleshooting information in the following table
for suggestions.
Symptom
Power Center override switches
operate when in Service or
Time Out Mode, but the PDA
Handheld Remote is completely
dead (no backlight on or
display).
PDA Handheld Remote
backlight is on and the startup
screen is displayed. The
override switches at the power
center operate as they should.
PDA Handheld Remote
backlight is on and the startup
screen is displayed, but
override switches at the power
center do not operate at all.
Some buttons do not operate
from the PDA Handheld
Remote, nor from the power
center override switches.
System locked up.
Programs do not run at the
correct time.
Problem
Dead batteries in the PDA
Handheld Remote.
PDA is not communicating with
the power center PCB.
1. Damaged or improperly
installed PPD.
2. Wrong PPD.
. Damaged power center
PCB.
Wrong PPD chip installed at
the power center PCB.
Microprocessor locked.
AquaLink RS does not display
correct time and date.
Possible Solution
Replace batteries.
Check the two center wires (black & yellow) of
the four conductor cable to the transceiver
J-box. Also check the installation of the PPD on
the power center PCB. If the PPD is not seated
correctly the system will not communicate.
1. Check alignment of the PPD.
2. Make sure that the PPD is for a PDA.
. If PPD is installed correctly, replace the
power center PCB.
Ensure that the PPD revision number is the
correct revision required for the application.
Turn off power to the system. Disconnect
battery at the Power Center and turn on power.
Reconnect the battery and reset time and date.
At the PDA Handheld Remote, set correct time
and date. In Diagnostics, check battery level.
If LOW BATTERY is displayed, replace battery
at the Power Center to ensure correct time and
date are maintained.
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