Page 12 of 16 SA-441-10 Installation and Operating Instructions
11/1/19 CP5203A
SERVICE
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.
A blown amplifier fuse doesn't necessarily mean that the unit is bad. If a speaker or speaker lead is
shorted this fuse will blow before the unit is damaged. Disconnect the SPKR leads and replace the
fuse. If the siren emits a sound when in the Yelp position it is OK. Check the speaker(s) or leads for
possible shorting.
PROBLEMS
Symptom Possible Cause Check
No power or
siren output
Power switch not turned on
Bad speaker(s)
Connector loose
Amplifier/control head fuse blown
Loose connection at power source
Does backlighting and power indicator on control head
come on?
Do you hear a "pop" when turned on?
Is an external fuse or circuit breaker used?
Are the negative leads connected to a good ground?
No siren tone
- PA works
High Voltage Protection
Mic button stuck
Input voltage must be less than highest rated voltage.
Does mic button release properly?
No PA PA volume not set properly Have you tried turning the PA volume control?
Distorted
siren sound
Speaker assembly loose
Intermittent Aux Input connection
Low vehicle voltage
Is the speaker bell or tip loose?
Is the Aux Input used and wired properly?
Input voltage must be greater than lowest rated voltage.
Intermittent
siren tone
High Voltage Protection
Connector loose
Bad power connection
Mic button activation
Circuit breaker in supply connection
Is the vehicle voltage regulator working properly?
Are connections tight on the amplifier/control head?
Is there a loose connection on a power lead?
Is something lying on the microphone?
Is a circuit breaker used with at least a 50A rating?
Horn function
Or Manual
stuck on
Siren switch stuck
Aux Input improperly connected
Does the Siren switch return fully when released?
Is the Aux Input used and wired properly?
No Radio Unit not connected to radio
Radio volume too low
Is the radio connected properly to the unit?
Can you here the radio in the vehicle?
Have you tried turning the radio volume control?
Wrong siren
tone
Two-Tone option installed
Ground system noise
Is the Two-Tone option selected?
Are Control head and amplifier connected to good
ground?
Phaser not
working
Phaser disabled Is the Phaser Disable option selected?
Horn not
working
Horn disabled Is the Horn Disable option selected?
Dual switch
doesn’t work
Only one amplifier working
One speaker damaged
Is one fuse on the amplifier blown?
Have you tried replacing the speaker?
Constantly
blows fuses
Amplifiers wired incorrectly Are SPKR A and SPKR B wired together?
See www.carsonsirens.com for additional information.
or contact our Service Department at:
E-mail service@carsonsirens.com or Phone (888) 577-6877
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