Tampa Bay has the unfortunate distinction of being one of the most hurricane-vulnerable metropolitan areas in the United States. The combination of warm Gulf waters, low topography, and dense development means storm season — June 1 through November 30 — is a serious annual reality for Hillsborough and Pinellas County homeowners.
Your HVAC system is one of the most important pieces of equipment in your home when a hurricane threatens. Here’s what you need to know before the storm, during the storm, and after the power comes back on.
Before the Storm — HVAC Prep
Capacitors and Pre-Season Checks
The most common post-power-restoration HVAC failure is a blown capacitor. Capacitors store the electrical charge needed to start your compressor and fans. When power surges back on after an outage — especially if it flickers — capacitors take the hit.
If your capacitor is already aging (most fail between 5–10 years), a surge can kill it instantly. A pre-season tune-up checks capacitor health and replaces ones at risk before the storm season.
Clear Your Outdoor Unit
Before a storm arrives:
- Remove any debris, furniture, or covers from around your outdoor condenser
- Clear overhanging branches that could fall onto the unit
- Do NOT cover your condenser with a tarp or bag — this traps moisture and can damage the compressor
Know Your Disconnect Switch
Every outdoor AC unit has a disconnect box — usually a metal box mounted on the wall near the condenser. Know where it is. If you’re evacuating or the storm is severe, switch it to OFF before you leave.
During the Storm — What to Do
As a tropical storm or hurricane approaches:
- Lower your thermostat to 68–70°F before the storm — pre-cool your home. The thermal mass will help maintain livable temps for hours after power loss.
- Turn off your AC when sustained winds reach tropical storm force (39 MPH+). Debris can damage the condenser and refrigerant lines.
- Don’t run the AC during the storm itself.
After the Storm — Power Restoration
This is where most HVAC problems happen — and most homeowners make the wrong call.
Wait Before Restarting
When power is restored after an extended outage, do NOT immediately turn your AC back on. Wait 15–30 minutes. Here’s why:
- Power restoration often comes in surges and re-interruptions. If your compressor is running when power drops again, it can damage the compressor.
- After extended heat, your refrigerant oil settles. The system needs a few minutes to equilibrate before starting.
After the Wait — Restart Procedure
- Check the outdoor unit for physical damage before turning on
- Set your thermostat to a temperature several degrees below ambient to trigger the call for cooling
- Listen for the outdoor unit to start — compressor and fan should both engage
- If the system runs but doesn’t cool within 30 minutes, call us
Common Post-Storm AC Problems
- Capacitor failure — Most common. Symptoms: outdoor unit hums but doesn’t start. Fix: replace capacitor (same-day repair in most cases).
- Contactor failure — Similar symptoms to capacitor. Also a fast fix.
- Refrigerant loss — If the condenser took debris impact, lines may be damaged. System runs but doesn’t cool.
- Condensate drain backup — Storm moisture can overwhelm drain lines. Causes float switch to shut off system.
- Thermostat reset — Power surges can reset smart thermostats. Check your thermostat settings first.
Call Hot 2 Cold
We prioritize post-storm emergency calls across Hillsborough and Pinellas Counties. Emergency line: (813) 358-4591.
After major storms, demand for HVAC service spikes — sometimes 3x–5x normal call volume. Maintenance Club members receive priority scheduling.
FL License CAC1816786