I have an ADT system that has freak random false fire alarms. Thye don't happen that often (once a month). I have two sensors (upstairs and downstairs). ADT has replaced both units and some wire. I have let the alarm go so that I could check the lights on the units. Neither units light is lit indicating an alarm condition. ADT seems to be clueless. Any ideas or similar situations?
They have mentioned the shower thing. The unit outside the bath is no flashing the light. Besides, we have a bath vent fan.
It hasn't gone off while cooking.
There is no visable smoke or smell.
They do have instructions to call me home and cell before they dispatch the fire dept.
The good thing is that is it has only gone off late at night once (heart attack city!

). Most of the time we have been awake. We also have the voice alarm to distingush between intruder and fire.
The system is part wireless and part wired. Both fire alarms are wired. Any thought of a rogue wireless signal tripping the alarm?