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Pelco Manual C1456M-D (10/98)
Symptom: Fan does not operate.
1.
Turn off power.
2.
Remove the lower dome:
In-Ceiling Models - Insert the flat blade of a screwdriver into one of the slots
on the trim ring and twist the screwdriver to pop loose the trim ring and lower
dome.
Pendant Models - Remove the two screws that hold the trim ring to the back
box. Insert the flat blade of a screwdriver into the slots on the trim ring and
twist the screwdriver to free the lower dome from the back box.
3.
Remove the dome drive: Push in on the green drive eject tab on the side of the
dome drive and gently rock the dome drive to release the latch. When the
green latch releases, pull the dome down.
4.
Make sure the connector for the fan is fully seated.
5.
Replace the dome drive. Turn on power. If the fan does not operate, return the
back box electronic assembly and dome drive to the factory for repair. Refer to
Section 6.1, BACK BOX ELECTRONIC ASSEMBLY REMOVAL.
Symptom: Alarms not cycling when more than one alarm is active
Reset all your alarm priorities to all LOW or all HIGH (refer to Section 5.8, ALARMS,
for an explanation of alarm high/low priorities). To reset the alarm priorities:
1.
Go to Section 5.11.1, MAIN MENU ACCESS, and follow the instructions for
accessing the programming main menu.
2.
Go to Section 5.11.16, ALARM PRIORITY, and follow the instructions for set-
ting the alarm priority.
Symptom: Alarms not going to preset
Check that the preset is defined.
Check that no higher priority alarm is activated.
Check that a pattern is not set for the affected alarm(s). If a pattern is set, the
alarm will run a pattern, not go to a preset. If a pattern (or patterns) is set, reset
the pattern(s) to NO PATTERN. To reset a pattern:
1.
Go to Section 5.11.1, MAIN MENU ACCESS, and follow the instructions for
accessing the programming main menu.
2.
Go to Section 5.11.17, ALARM PATTERN, and follow the instructions for set-
ting the alarm pattern.
Symptom: Alarms not starting a pattern
Ensure that the pattern selected is valid. Any time you expect a pattern to execute,
make sure the pattern is recorded correctly and is valid.
Symptom: Motion problems
When troubleshooting motion problems on a system where alarms are connected,
you can eliminate alarms as a cause of the problem by disconnecting the alarm
block in the back box.
6.1  BACK BOX ELECTRONIC ASSEMBLY REMOVAL
To remove the back box electronic assembly:
1.
Turn off power.
2.
Open the interconnect door and disconnect all wiring to the back box.
3.
Use an 11/32 socket driver to remove the three 8-32 washers and nuts that
hold the electronic assembly to the back box. When the screws are removed,
the interconnect back box receptacle will drop down. It may be necessary to
move the open interconnect door past 90 degrees vertical toward the side of
the back box to release the door from the built-in grounding strip (and free the
interconnect back box receptacle).
4.
Remove the interconnect back box receptacle with the electronic components
from the back box.