NAPCO Security Command Center Operating Manual page 36

Trouble System Trouble
Indication Condition
User Program Memory
E19-00
Error
E20-00 Dealer Program
Memory Error
E21-00 System Shutdown
E22-NN Sensor Watch Activity
Failure
E23-00 Burglary Bus Failure
E24-00 Service Message
Printer Failure
E27-00
Receiver Capacity
E39-00
Error
36
S Y S T E M T R O U B L E E R R O R C O D E S
Call installing company for service.
Call installing company for service.
Call installing company for service.
A Motion Sensor on the zone indicated has failed the programmed Sensor Watch activity test.
Insure that the sensor is able to detect activity in the area; clear any obstacles which may be
blocking the sensor from detecting activity. Press C to clear the display, and then use the
Function Menu to Reset Sensor Watch Failure (see page 17). If you cannot correct the problem
yourself, call installing company for service.
Call installing company for service.
The system is in need of a preventive maintenance service call. Call installing company for
service.
Call installing company for service.
Call installing company for service.
Action