Sierra Safety Technology, Inc.
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Page 19 of 20
8.2.6 Fault Type 6 - “Relay Fault”
One of the Relay’s coil circuits is open.
Factory service is required.
8.2.7 Fault Type 7 - “Voltage High”
The Detector was exposed to an input voltage above 32 Volts.
Factory service is required.
8.2.8 Fault Type 8 - “Temperature Out of Range”
The internal measured temperature was either below -40
°
C or
above 85
°
C.
Factory service is required.
8.3 Device appears to operate normally but will not alarm to a fire.
When the detector declares an alarm two things should happen. One,
both the LEDs on the front of the detector should come on. Two, the fire
relay should energize. Check the dipswitch settings. (SW1, SW2, and
SW8 should be off, SW3 - SW7 have no impact.) Connect an ohmmeter
across the Fire relay connections at the “Fire” connector (Pin 1 and Pin 3
of J2). Run a fire test per section 3.3.
1. If the relay closes (0 ohms on the meter) and the LEDs come on the
detector is operating normally. Check external alarm initiating circuit
wiring.
2. If the relay closes and the LEDs remain off, or the relay remains open
and the LEDs come on, the detector needs factory service.
3. If the relay remains open and the LEDs remain off, contact the factory
for further diagnostic information.
NOTE: With software and a computer, more extensive diagnostics can be
performed. Contact the factory for information on software and the
minimum requirements for a computer.
