Bosch D296 - Troubleshooting; Transmitter; Receiver - Aim Mode (cover off); Receiver - Normal Mode (cover on)

Long-range beam smoke detectors Troubleshooting | en 25
Bosch Security Systems, Inc. Installation manual 2017.03 | 7.0 | F.01U.068.899
7 Troubleshooting
7.1 Transmitter
LED Condition Solution
Flashing Normal
Off 1. There is no power at the transmitter.
2. The Aim Mode button not pressed.
3. The transmitter is faulty.
1. Restore power to Terminals 1 and 2.
2. Press the Aim Mode button.
3. Replace the transmitter.
7.2 Receiver - Aim Mode (cover off)
Red
LED
Yellow
LED
Green
LED
Terminals 4
and 5
Terminals 6
and 7
Condition Solution
On On Flashing Open Open The alignment is
acceptable.
On On On Open Open The beam is
blocked or the
receiver is
misaligned.
Clear the beam
path or realign
the receiver.
On Flashing Flashing Open Open The sensitivity
setting is invalid.
Set the receiver
to the proper
setting.
On Off Off Open Open There is no power. Check for power
at Terminals 8
and 9.
7.3 Receiver - Normal Mode (cover on)
Red
LED
Yellow
LED
Green
LED
Terminals 4
and 5
Terminals 6
and 7
Condition Solution
Off Off On Open Closed The receiver is
initializing. It
stabilizes in 60sec to
120sec.
Off Off On Open Open The receiver is
initializing. The
access door is
missing or loose.
Replace the
access door.
Off Off Flashing Open Closed Normal
Off Off Flashing Open Open The access door is
missing or loose.
Replace the
access door.
Off On On Open Open Trouble. Beam is
blocked or
misaligned.
Clear the beam
path or realign
the receiver.