“Err” – Unit Malfunction
If the readout displays “Err”, the unit has detected an error and will beep each minute indicating that your low-level CO monitor has failed.
Also, if the low-level CO monitor has a fresh battery and the red light is not flashing, the low-level CO monitor has malfunctioned.
Contact customer service 8 am – 5 pm Eastern Standard Time, Monday - Friday
Telephone: 440-949-1850
e-mail: [email protected]
Testing the Horn and Battery
Test the unit by pressing the Test/Reset button briefly to confirm that the low-level CO monitor is operating properly. The low-level CO
monitor should sound as soon as the button is pressed, indicating that the horn is working and the battery is providing power to the unit.
Release the test/reset button to silence the horn. The horn and battery should be tested on a weekly basis.
