Faults - Honeywell Accenta Engineer's Manual

Accenta/Optima Engineer's Manual

Faults

Fault conditions are often the result of minor installation errors.
Whenever working close to the mains supply or connector, you should exercise extreme caution. Always
isolate the mains supply before removing the control panel covers.
Codes
As supplied the default user code is 0123 and the engineer code is 9999. Both codes can revert back to
default settings. See Defaulting Panel to Factory Settings and Defaulting User Code 1 and Engineer
Code.
Engineer Mode
When the system is unset, the Engineer Program is accessed directly, using the engineer code.
Tamper/SOS/Fire Faults
If a tamper, SOS or Fire fault is present on the system, it will go to a lock out condition (showing the
appropriate indication). The keypad will produce audible responses and the system will allow an engineer to
access the panel and rectify the fault. The panel will remain in lockout until the fault has been rectified.
Zone Wiring
It is recommended that only one detector is wired to each zone as this allows the event log to record the
operation of each detector. However, if multiple detectors are connected to a zone, their alarm outputs must
be wired in series.
If used, all detector tamper outputs are wired in series back to the control panel to the terminal marked
TAMP. (see Figure 7. Security Zone Wiring).
Zone Faults
Where a permanent zone fault is showing and the loop resistance is found to be in order, the most
probable cause is a short circuit between the zone wiring and the tamper wiring. When measured with a
multimeter the series resistance between the zone and tamper wiring should be infinitely high.
If after thorough investigation a fault condition persists the panel can be set to factory defaults (see Defaulting
Panel to Factory Settings).
Fuses
Before testing or replacing any fuses, ALL power must be removed. Fuses which fail continually are
almost certainly the result of a short circuit or low resistance across the 13V supply or external siren
(bell box) supply (terminal D).
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Faults