Most of the emergency calls we take in August could have been a fifteen-minute job in April. Here is what our technicians do to their own systems — none of it requires a licence.

An air conditioner is a heat pump with one job: move warmth from inside your house to outside it. Almost everything that goes wrong is a restriction somewhere in that path — a blocked coil, a clogged filter, a fan that cannot pull enough air. Remove the restrictions and the system runs cooler, quieter and years longer.

1. Clear the condenser, properly

The outdoor unit needs two feet of clear space on every side and five feet above. Cut back the jasmine. Rinse the fins with a garden hose from the inside out, never a pressure washer — bent fins cost more airflow than the dirt did.

Fins bent by a pressure washer are the single most common self-inflicted efficiency loss we see.

2. Change filters on a schedule, not a feeling

A one-inch pleated filter in a house with a dog is a 60-day part, not a 90-day part. Write the install date on the cardboard edge with a marker. If you cannot remember the last change, it is overdue.

  • MERV 8–11 for most homes — high enough to matter, low enough to breathe through.
  • Buy a year’s worth at once; the stack in the closet is the reminder.
  • If the filter bows inward, your return is undersized — call us, don’t force it.

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Nine out of ten “the AC died” calls in July are a dirty coil, a flooded drain pan, or a capacitor that has been failing since May.

Ray Alvarez, founder

3. Watch the drain line

Cooling produces water — a lot of it. If the condensate line clogs, the pan fills, the float switch trips and your system shuts down mid-heatwave. Pour a cup of distilled vinegar down the access tee each spring and you will likely never meet that switch.

4. Let the thermostat do its job

Setting 65°F does not cool the house faster; it just runs the compressor longer past the point of comfort. Pick a setpoint, add a modest setback while you are out, and leave the fan on auto so the coil can drain between cycles.

5. Book service in spring, not July

April appointments are cheaper, faster to get, and catch the weak capacitor before it strands you. It is the least glamorous advice on this list and the one that saves the most money.