RADION Life Safety
Troubleshooting | en
31
Bosch Security Systems, B.V.
Installation manual
2020.06 | 03 | F.01U.361.555
11
Troubleshooting
11.1
Smoke and heat detectors
Nuisance alarms
The detector alarm sounds without any presence of smoke or fire.
–
Press the test button on the smoke detector to silence the detector for 10 minutes.
–
Paint, steam and other fumes may cause nuisance alarms. Make sure that fumes cannot
accidentally put the detector into alarm. Install heat detectors in kitchens, or install
detectors away from fume sources.
–
Make sure contamination, such as cobwebs or dust is not near or attached to the
detector. Clean the detector regularly.
Low battery
RFSM2-A/RFHT-A - The detector emits a sound with a yellow LED flash every 48 seconds.
Replace the batteries or replace the detector if the “replace by” date has expired.
Contaminated chamber
RFSM2-A - The detector alarm sounds without any presence of smoke or fire.
–
Press the test button to silence the detector for 10 minutes.
The detector alarm occurs a second time after silencing.
–
Press the test button within 4 minutes of the second detector alarm. The detector may
compensate for chamber contamination, which typically solves the problem.
The detector alarm occurs a third time after silencing.
–
Press the test button within 4 minutes of the third detector alarm to disable the detector
for 8 hours. The detector continues to emit 2 short sounds (1 second apart) every 10
minutes. If the contamination clears, the detector returns to normal operation. If not,
replace the detector.
Faulty smoke chamber
The detector emits 2 short sounds with 2 yellow LED flashes every 48 seconds.
–
Replace the detector.
–
If you cannot replace the detector immediately, press the test button to silence the
detector and stop the yellow LED flashes for 12 hours. Repeat until you replace the
alarm.
Detector fails to emit a sound when the test button is pressed
–
Check the age of the unit. See the “replace by” label on the detector.
–
Replace the batteries.
LED and sounder indicators
RFSM2-A/RFHT-A
Operation
Description
Corrective action
Power up
Red LED flashes once.
Yellow LED flashes once.
Built-in sounder is off.
Remove the battery tab during
installation, or insert batteries.
Normal
operation
LED's are off.
The built-in sounder is off.
No action required.
Fire detection
Red LED flashes rapidly.
Evacuate the building
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