Symptoms Include:

1. Thermostat is set low, but nothing happens no fan, no hum.
2. Outdoor unit is silent.

Quick Checks

Make sure the thermostat batteries aren’t dead.

Verify the breaker labeled “A/C” or “air handler” is ON.

Confirm the furnace switch (looks like a light switch) hasn’t been flipped off.

Why It Happens
Loose low-voltage wiring or a failed contactor prevents 24 V from reaching the compressor. CAUTION – do not attempt to diagnose or repair electrical issues without consulting a professional. If you suspect an electrical issue call us immediately.

Prevent It
Annual tune-ups catch frayed wires and pitted contacts before they fail under summer load.

Symptoms can include:

1. Indoor fan runs but the air never cools.
2. Outdoor unit may or may not be spinning.

Likely Culprits

Low refrigerant charge from a small leak.

Dirty outdoor coil can’t dump heat.

Failed run capacitor keeps the compressor from starting.

DIY Fix:
Change the filter. Inspect the outdoor unit for dirt and debris build up – call a professional if it seems dirty. If air is still warm after replacing filter, shut the system down and call a pro—running low on refrigerant can cook the compressor.

Symptoms May Include:

1. Supply vents barely blow; removing the filter reveals ice on copper lines.
2. Water may puddle under the indoor unit as ice melts.

Root Causes
Restricted airflow (clogged filter, closed vents) or low refrigerant.

What to Do

1. Turn the system OFF and switch the fan to ON to thaw the coil.
2. Replace the filter.

Book a technician; ice is a warning sign, not the fix itself.

Possible Signs or Symptoms:

1. AC starts, runs a few seconds, then kills the breaker.
2. A faint electrical smell near the panel or outdoor unit.

Why It Happens
Compressor windings short, fan motor seizes, or the breaker itself is weak.

Safety First!
Stop resetting the breaker—repeated trips generate heat that can damage wiring. Call for professional service and let the electrician in the crew test amp draw and motor resistance.

Symptoms

1. Drip marks around an interior vent or in a closet.
2. AC appears to cool normally, but the air handler pan is overflowing.

Common Causes

Algae clogging the condensate drain.

Broken float switch.

Frozen coil thawing (see #3).

Immediate Action
Turn the system OFF and place towels or a bucket to catch water. Clearing the drain line often requires a wet-vac and pressurized nitrogen—tools most homeowners don’t keep around. Call a professional immediately!