8
VIII. TROUBLE SHOOTING
Symptom
Probable Cause
Solution
No lights or audible alarm. Power supply may not be
engaged into unit or wall
receptacle.
Internal Damage.
Remove and replace power.
All the LEDs should blink
and the alarm should beep.
If any of the LEDs don’t
blink or the alarm doesn’t
beep return to
MATHESON for repair.
Defective power supply.
If none of the LEDs and the
alarm doesn’t beep after
cycling, power check power
supply and replace if
necessary.
Unit lights up, but there is
no audible alarm with red
lights.
Defective circuit or
alarm buzzer.
Return to MATHESON for
repair.
Cylinder is above set
point, but red light stays
on, and there is an audible
alarm.
Needs reset
Wiring incorrect.
Press and hold reset button
for at least three (3)
seconds.
Check for crimping and
pins positioning (see
FIGURE 1).
Incorrect set point on
IPS.
Set IPS alarm point.
Defective IPS.
Check and replace IPS, if
defective.
Defective circuit.
Return to MATHESON for
repair.
Cylinder is below set
point, but the green light
stays on, and there is no
audible alarm.
Defective IPS.
Check and replace IPS, if
defective.
Defective circuit.
Return to MATHESON for
repair.
