Fried AC Relays, Cardboard Box Spiders, and Carpenter Ants in Bathrooms
Why Fire Ants Attack Air Conditioners HVAC technicians dread July service calls for broken contactors. The silver points on a condenser relay switch click thousands of times a week, emitting low-frequency electromagnetic hums that drive worker ants wild. A lone scout crawls between the points, bridges the 240-volt contact gap, and fries instantly. That tiny spark vaporizes the ant, releasing an acrid puff of oleic acid that summons every worker within twenty yards. Pop the metal service door and you will smell scorched insects before you see them. Within two hours, hundreds of ants pile into the tiny relay housing. Arcing current melts the copper arms together, leaving the compressor running hot until the motor burns out. Homeowners who try to wash the unit with a garden hose only push water into delicate wiring harnesses. Seasoned Mesquite pest control technicians apply granular fipronil around the concrete equipment pad and inject waterproof dust into conduit sweeps. Stopping ...