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What To Do If an HVAC System Won’t Turn On
If your air conditioner is iced over or obstructed by debris, turn it off and switch on the fan to defrost naturally. Clean or replace dirty filters to possibly restore functionality. Contact an HVAC technician to inspect for potential refrigerant leaks, which could be hazardous.
Things to Know About MERV and How It Affects an HVAC System
Air filters vary in rating based on material: fiberglass and washable types are MERV 3-4, blocking larger dust; pleated paper filters have finer pores, providing better filtration at MERV 5-8.
Can Rain Affect an HVAC System’s Performance?
HVAC systems are designed to endure rain without damage, provided electrical parts are insulated and waterproofed, and rain can help clean accumulated dirt and dust from the outdoor unit.