When we built our house 6 yrs ago, we had our electrician install a whole house alarm. This included a motion detector and alarm with the opening of any door or window. We also had rotary control switches installed for every ceiling fan. When several of the switches are turned (always the same three & only sometimes), the alarm sounds - as if a door or window just opened. All alarms are hard wired throughout the house.
Do you think the alarm wires are routed too close to the three swiches causing a pulse in the alarm system? If the switches are the problem, are there rotary switches available that are electrically isolated to prevent emitting extraneous signals? Or is the replacement of the rotary swiches with toggle switches the only solution?