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Preparing Your HVAC System for Summer

HVAC Efficiency

Preparing Your HVAC System for Summer

May 18, 2026 · 6 min read · Moses HVAC & Chimney

As spring turns into a humid mid-Atlantic summer, your air conditioner becomes the most important comfort system in your home. Waiting for the first 95°F day in Washington, DC or Maryland to switch it on is a recipe for disaster. Preparing in advance reduces electric bills by up to 25% and wards off sudden compressor breakdowns.

5-Point Preparation Checklist

  1. Swap out your air filters. A clogged filter limits return airflow and overloads the blower. Overloaded coils cannot shed moisture and can freeze into a block of ice. Replace filters every 1 to 2 months.
  2. Trim back growth around the outdoor condenser. The outdoor unit dissipates all the heat pulled from your home. Clear shrubs, weeds, and branches at least 2 feet around the aluminum fins.
  3. Listen on startup. Run the cooling for 10 minutes. Heavy vibration, rhythmic clicking, or grinding fan noises warn that capacitors are weakening or motor bearings are seizing.
  4. Inspect the condensate drain line. The thin PVC pipe should drip freely while the system runs. A clogged pipe backs up, trips safety float switches, and shuts down your air handler.
  5. Book a professional tune-up. A preventative visit verifies refrigerant charge, relay health, and coil cleanliness. If your unit is near end of life, we install Energy Star replacements that save hundreds annually.

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