A Fire Loop Trouble is a fault condition. Although this fault may indicate that you have an electrical problem with the system’s fire circuit, it is often found that a contaminated smoke sensor may be responsible for this condition.
Over time, dust particles may enter & settle in the sensor’s optical or ionization chamber and prevent the sensor from operating as designed.
Regular cleaning internally & externally of a smoke sensor with a vacuum cleaner will not only reduce false alarms but may restore a Fire Loop Trouble caused by dust accumulation. It is not recommended to open a smoke sensor. Cleaning with a vacuum cleaner may be achieved without opening the detector – by placing the inlet nozzle of the vacuum close to the smoke sensor’s wire gauze guard. It is important to always confirm the Fire Loop Trouble has restored with the monitoring after cleaning.
If after vacuuming the sensor and resetting the alarm system at the keypad, the fault condition persists or the fault condition reoccurs after resetting, please call to arrange a technician to service/replace the equipment.