Table of Contents
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Smoke Alarm
User Guide
i4618AC, i4718AC, i5000AC Series
• 120 Volt Smoke Alarm with 9 Volt Battery Back-up
• Front Load Battery
• Test and Hush
!
ATTENTION: Please take a few minutes to thoroughly read
this user guide which should be saved for future reference and
passed on to any subsequent owner.
P/N: 1261-7205-00
®
Button
SIGNALING
U L
LISTED
Model: i4618AC
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Table of Contents
Need help?
Do you have a question about the i4618AC Series and is the answer not in the manual?
Questions and answers
The green lights in the smoke alarms light up my rims an hallway like a runway, is there any way to block the light? Not good for people that are sensitive to light at night
@Christina Tischler ,I need to check spelling autocorrect got me again. My rooms and hallway is what that should say.
Smoke alarm chirps intermittently
The Firex i4618AC Series smoke alarm chirps intermittently due to a low battery warning. The alarm emits a chirping sound to indicate that the battery needs to be replaced. Additionally, the low battery warning chirp can be temporarily silenced for approximately 13 hours by pressing the Test/Hush button.
This answer is automatically generated
I have replaced the battery, green light is on, red light flashing. but the unit will randomly chirp 3 times. doesn't seem to be at any particular time. it is connected to other units. Their batteries have all been replaced too.
The Firex i4618AC Series unit may be chirping three times randomly after replacing the battery due to an issue with the smoke-sensing chamber. The manual states that the alarm will "chirp" if abnormal operation of the smoke-sensing chamber is detected. Ensure the battery is properly installed, and use only the specified battery types. If the issue persists, cleaning the unit or resetting it by disconnecting power and reinstalling the battery may help. If the problem continues, the unit may need replacement.
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Can’t get the door to close 4618A
If the door of a Firex i4618AC Series smoke alarm will not close, the likely cause is an improperly installed battery. The unit includes a battery lockout feature that prevents the battery door from closing unless a battery is correctly installed. To troubleshoot:
1. Remove the battery and reinsert it, ensuring correct polarity.
2. Make sure the battery is fully seated in its compartment.
3. Try closing the door again.
This feature ensures the unit will not function without a properly installed battery.
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Why does my smoke alarm continue to chirp after replacing the battery
The Firex i4618AC Series smoke alarm chirps after replacing the battery because the low/missing battery monitor circuit remains active during battery replacement. This chirping will stop once the new battery is correctly installed. To avoid this chirp, the unit can be removed from the base and disconnected from AC power while replacing the battery, though this is not necessary.
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I've replaced the batteries in my smoke alarms, but red light continues to flash, even after 12 plus hours. what is wrong?
Green light intermittently flashing red after 8 minutes of hush