
-8-
Troubleshooting
Symptom
Possible Cause
Check
No power Connector loose
Siren 20A fuse lown
Loose connection at power source
Check connector
Is power hooked up ackwards? Positive ground vehicle?
Is an external fuse or circuit reaker used?
Are the negative leads connected to a good ground?
No siren tone - PA
works
No siren tone - No
sound
High voltage protection
Low voltage protection
Microphone utton stuck
Park Kill polarity option set wrong
Park Kill activated
Bad speaker or speaker wiring
The input voltage must e less than 16 volts.
The input must e greater than 10V with the siren turned on.
Does microphone utton release properly?
Is the PK jumper option properly configured?
Does the siren work when Park Kill input is disconnected?
Check for a short.
Check for an open.
No PA PA volume not set properly Have you tried turning the PA volume control?
Distorted siren sound Speaker assem ly loose
Intermittent Aux. Input connection
Low or high vehicle voltage
Is the speaker ell or tip loose?
Is the Aux. Input connected properly to horn relay?
Input voltage must e etween 10 & 16 volts while siren is on and
drawing full current.
Intermittent siren tone High voltage protection
Low voltage protection
Microphone utton activation
Circuit reaker in supply connection
Shorted speaker or speaker wire
Is the vehicle voltage regulator working properly?
Is the connector tight on the ack of the unit? Is there a loose
connection on a power lead? The input must e greater than
10V with the siren on and drawing full current.
Is something lying on the microphone?
Is a circuit reaker used with at least a 50A rating?
Does the speaker have water damage, or is a wire pinched?
Horn function or
Manual or Phaser stuck
on
Manual or Horn push uttons stuck
Aux. Input improperly connected
Aux. Input Polarity Option set wrong
Does the switch return fully when released?
Is the Aux. Input used and wired properly?
Is the AUX polarity jumper option properly configured?
No Radio
Unit not connected to radio
Radio volume too low
Is the radio connected properly to the unit?
Can you hear the radio in the vehicle?
Adjust the Radio volume control
Wrong siren tone Siren tones programmed incorrectly? Re-program tones/Use System Reset (page 5)
Speaker Diagnostics
There is a diagnostic LED shaped like a speaker
located in the upper right hand corner of the front
panel. This LED will only turn on while a tone is trying
to be generated. It can be used to help identify the
siren/speaker status.
Steady - Speaker is connected and operating properly.
Single Flash - Standby Mode
Double Flash - Short/Over Current
Quad Flash - Improper Voltage (too high or low)
Off - o speaker is connected, or
- The siren is Off, or
- The speaker or wire connection has come loose or is electrically
open
This unit is designed to provide years of reliable service under even the worst
conditions. Many times there may appear to be a problem with the unit when the
true problem is in the speaker(s) or improper installation. The following chart shows
typical symptoms and possible causes.