At firealarm.com, we often encounter this issue with the Mircom MPD-65PK detector. The most common cause of false alarms in this model is environmental factors such as dust accumulation or insects inside the detector chamber. I recommend first ensuring that the detector is installed according to the manufacturer’s instructions and that there are no obstructions or contaminants present. Additionally, check for any loose wiring connections or faulty installation. If the issue persists after confirming these factors, it may be necessary to replace the detector. Feel free to reach out to our technical support team for further assistance.