False smoke alarms in AC ducts: troubleshooting tips?
July 16, 2014 11:32 AM Subscribe
Our new commercial space is experiencing frequent false smoke alarms in one specific area of our AC ducts. The company that installed the AC system is stumped, and so is the electronic security company that installed the smoke detectors. We've just had our ducts cleaned top to bottom but the problem persists even though we're presumably dust-free. Any thoughts on what to try next? Engineers? Inspection services?