Chapter 5: Troubleshooting
66 LaserSense HSSD-2 Aspirating Smoke Detector Installers Handbook
Error messages
The detector front panel display can provide a wide range of information about
the detector. Table 7 lists error messages and their meanings.
Table 7: Error messages
Error message Meaning and suggested action
Separator renew The dust separator (filter) requires replacement.
Separator change The dust separator (filter) is missing or improperly fitted.
Bad value, Bad time, Bad date A value has been input into a function, which is outside the
parameter range for that value. Take note of the range of
values allowed (in brackets) and try again.
Bad detector A detector address has been entered which is either outside
the allowed range or which is not present on the loop. This may
also happen if the user has entered address 000 (command
module) for a function which it does not support (e.g., alarm
factors).
No response The command module has unsuccessfully attempted to read a
function value from a connected unit. Check that the unit
connected supports this function.
001 X 002 Loop break There is a break in the communications loop between the
detector addresses specified. Check the wiring.
Comms fault The command module has polled a detector and no response
has been received after the specified poll timeout value. (See
“Poll timeout” on page 53 for details.)
Bad access code An incorrect access code has been entered. Enter the correct
code.
Battery fault This indicates either that the standby battery has discharged to
a predetermined level or that no standby battery is fitted. In the
former case, the battery should be replaced and recharged. In
the latter case, the battery check should be disabled. (See
“Battery check enable” on page 50 for details). It is important
that the battery fault be acted upon as soon as noticed, as
excessive discharge may cause damage to the battery. The
battery fault condition occurs before the battery reaches this
portion of the discharge curve.
Watchdog reset This indicates that there has been a power supply fault. If there
are frequent power outages, it may be advisable to power the
unit from a UPS.
Detector fault This indicates that there is a problem with the detector head.
This may be due to a number of causes. Refer to the chart
readout if this can be downloaded to a PC and note the
detector signal level at the time of the fault. When as much
information as possible has been determined about the
conditions at the time of the error, please contact Technical
Support.
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