The Edwards 280 series Mechanical Heat Detectors have been recalled by Health Canada for more details click on the link below.

http://www.healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2019/70945r-eng.php

“What you should do”

“Consumers who use the product in life-safety applications should contact a fire alarm professional of their choice for replacement options.”

If you are from the Edmonton area or anywhere in Alberta really.  Then give us a call and we can help with this Fire Alarm System fix.  These are non addressable devices meaning they can be changed by any competent Electrician proficient in fire alarm systems.