Before you book a service call in St. Petersburg, there are five checks worth
five minutes. Two of them solve the problem outright more often than people expect.

1. The thermostat, properly

Confirm it is set to cool and that the setpoint is genuinely below room temperature.
Then check the batteries. A thermostat with dying batteries can hold a display and still
fail to call for cooling.

2. The filter

A clogged filter chokes airflow across the coil. The system runs, the air moves weakly,
and the house never reaches setpoint. In coastal air with the humidity we get here, filters
load up faster than the box suggests.

3. The breaker, once

An air handler and a condenser usually sit on separate breakers. Reset a tripped breaker
one time. If it trips again, stop. A repeat trip is an electrical fault, and resetting it
repeatedly is genuinely dangerous.

4. The outdoor unit

Look and listen. Fan spinning? Coil buried in grass clippings or salt film? A condenser
that cannot reject heat cannot cool your house. Gently rinsing the coil from outside in is
safe and sometimes enough.

5. The drain line

Many systems have a float switch that cuts cooling when the condensate pan fills. In
Florida humidity, a clogged drain line is a common and completely invisible cause of an AC
that simply stops.

Where to stop

Ice on the refrigerant line, a burning smell, a breaker that trips twice, or a unit that
hums without starting. Those are not homeowner items. The humming is often a failed
capacitor, which is inexpensive to replace and expensive to ignore, because running a
compressor against a dead capacitor can destroy it.

Momentum AC and Electric services St. Petersburg and the surrounding area, and we will
tell you plainly when something did not need a service call at all.