| Problem | This Means | Action Taken |
| Smoke/CO alarm goes back into alarm 6 minutes or less after the test/silence button was pressed. | Smoke/CO levels indicated a potentially dangerous situation. | Call 911 or fire department. |
| Smoke/CO alarm does not silence after the test/silence button was pressed. | Smoke/CO levels reached upper threshold indicating a potentially dangerous situation. | Call 911 or fire department and EVACUATE IF YOU ARE FEELING SYMPTOMS OF CO POISONING. |
| Green LED is OFF. Amber LED is OFF. Red LED is not flashing. Unit will not go into test mode when test/silence button is pressed. | Device may not be receiving AC power and no batteries in device. |
Contact licensed electrical technician for equipment inspection service, immediately. |
| Test/silence button is pressed. LED’s do not flash and device does not go into test mode. | Device is not operating properly. | Contact Gentex Corporation for replacement information. |
| Green LED on, amber LED flashing, alarm chirps 1 quick chirp every 55 seconds. | Low or no batteries in device. AC is powering device. | Replace batteries (refer to Battery Installation Section) or contact licensed electrical technician for equipment inspection service, immediately. |
| Green LED on, amber LED flashing, alarm chirps 2 quick chirps every 55 seconds. | Device is reporting a trouble condition or not calibrated. | Replace batteries (refer to Battery Installation Section) or contact licensed electrical technician for equipment inspection service, immediately. |
| Green LED on, amber LED flashing, alarm sounds 3 quick chirps every 55 seconds. | END OF LIFE SIGNAL. Replace device. The product will last up to 10 years from installation date before it needs to be replaced. | Contact Gentex Corporation for replacement information. |
| Red LED is flashing, amber LED is on, alarm sounds 2 quick chirps every 55 seconds. | Device has been hushed or is reporting a trouble condition. | Wait 6 minutes for hushed cycle to complete. If 2 chirps continue after 6 minutes, disconnect power, wait 6 minutes, reconnect power sources, test device. If notification continues, contact Gentex Corporation for further information. |
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