Troubleshooting Guide—Page 9
This section will enable you to trouble shoot the system so you can either fix most problems yourself or know what to tell
us when you call for service. It’s written as a series of common problems, the likely fault, and what you should do to test
or remedy the problem.
3.1) Major Faults
Problem
Test / Likely Cause
Suggested Action
3.2) Timer and Bell Faults
Problem
Test / Likely Cause
Suggested Action
3.3) Intercom Faults (if fitted)
Problem
Test / Likely Cause
Suggested Action
No power to PA or Intercom.
Units Dead.
No indicator lights on equipment.
UPS (Uninterruptible Power Supply, if
provided) not working or constantly
beeping or system goes dead very
soon after a blackout.
Both Speakers and Handsets in one
section of school are not working but
others are OK in different blocks. May
also result in PA sound being heard
on intercom handsets or “false calls”.
Electrical problem in building
Unplugged power lead(s)
UPS Battery needs replacing.
Wiring fault. Likely caused by other
contractors damaging or digging up cables or
rats eating cables.
Plug in something that you know works, into the same
outlet and check there is power there.
Call for service and tell us what is happening. Expected life
of UPS batteries is 3 years before replacement is needed.
Call for service immediately.
Bell Ringing Continuously.
Music Plays Continuously.
Bell does not ring.
Timer has been toggled “ON” accidentally.
“C1 ON” may be displayed on the timer.
During programming, an “ON” time has been
entered instead of a “PULSE” time or a time
has incorrectly been set for 00:00:00 with a
duration of 0:00.
Timer has been toggled “ON” accidentally.
“C2 ON” may be displayed on the timer.
“Music Test” switch left on.
Press manual bell ring button.
Check “Auto Bell” switch is ON.
Bell time(s) not programmed.
Briefly push
⊳
and buttons SIMULTANEOUSLY to
toggle OFF again.
Turn the “AUTO BELL” switch to OFF to silence the bell.
Then check bell times (ref Page 5) to see if there is an error
time present. If there is, delete it. Alternatively reset the
timer (ref Page 6) and reprogram the timer or use the
OBELISK card to restore the previous programme.
Briefly push and “OK” buttons SIMULTANEOUSLY to
toggle OFF again.
Turn it off.
If bell rings OK then see below. If not then go to “PA faults”.
Turn it ON if required.
Check bell times (ref Page 5)
Crossed Lines.
(Call one room and others answer).
Most handsets work but a few
do not.
Weak or missing ring tone
Lightning strike.
The school has suffered a major electrical
surge or similar.
Multi pin plug has not been fully inserted into
the terminal box socket.
Wiring fault. Likely caused by other
contractors damaging or digging up cables or
rats eating cables.
Call level too low.
Electrical Damage or wiring fault
Call service.
The main unit will need to be returned to our workshop for
a few days to have one or more line boards replaced.
Make sure the large multi pin connectors for the intercom
are all securely pushed right in to the socket and the
retaining catch pins are correctly snapped across both
ends of the plug.
Call Service.
Adjust call level switch on unit to higher level.
Call service.