GS/3 Operation
When you connect power to your new detector it goes through a start-up cycle. The green LED (marked "Power") comes on. The red LED (marked "Alarm") and horn will pulse for approximately 5 seconds until the sensor is warmed up. If no fumes are detected, the red LED and horn stop and the green LED remains on, indicating the detector is active.

If fumes are present at start-up, the horn and red LED will continue to pulse - from 60 pulses/minute for concentrations lower than 25% of the lower explosive level, to 80 pulses/minute for higher concentrations. If fumes are detected at any time after start-up the horn and red LED will start to pulse. If this occurs, immediately shut off the propane supply and ventilate the area. Avoid using any source of ignition, including electric switches, electric motors, pilot lights or other open flames. When the fumes have dissipated, the horn will stop and the red LED will turn off, indicating a safe atmosphere. The leak should be corrected before resuming operation of the propane system. A continuous tone indicates a short in the electronics and a single pulse every 10 seconds indicates a faulty sensor. If either of these signals occur, return the detector to your dealer for repair or warranty replacement.

The presence of other organic vapors, such as paint fumes, solvents or hair spray can trigger a false alarm. Ventilate the area and this should stop the alarm. Your detector needs unrestricted air flow through the grill for reliable operation. Keep it free of any obstructions and vacuum monthly.

Testing
The detector can be tested by injecting gas (no flame) from a butane lighter for 5 seconds into the lower grill. This test should be done monthly to ensure proper operation of the detector.

Warning!
The sensors used in all of our detectors can be contaminated by water. If the sensor gets wet, the water causes a short circuit in the sensor. The result is the same as propane completing the sensor circuit and triggers an alarm even when no propane is present. It is extremely important to keep the sensor dry at all times. Read more in our Sensor section.

If you have determined that you don't have a leak and the sensor continues in the alarm mode, it is likely that you have a contaminated sensor. This sensor is soldered directly to the circuit board in the GS/3. This means the entire detector should be returned to your dealer for warranty replacement or, if your warranty has expired, you can send your detector to us postage paid for repair. See sensor details on how it works.

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