What is Haboob (Dust Storm)?
A haboob is a massive wall of dust driven by thunderstorm outflow winds — central Arizona's signature monsoon event, capable of dropping visibility to near zero in minutes. For HVAC equipment, it's a high-velocity delivery of fine dust straight into the outdoor coil.
Why it matters in Arizona
One haboob can pack a condenser coil and finish off a filter that had weeks of life left. The after-storm routine: power off at the disconnect, rinse the outdoor coil gently with a hose (never a pressure washer), check the filter, and listen for new noises before trusting the system again.
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