Marine Air Conditioning Service & Repair
Cold cabins, every time — expert diagnosis, repair, and installation of marine AC systems across South Florida.
South Florida's marine AC troubleshooting experts
When your marine air conditioner blows warm air or trips offline in the Florida heat, you need a technician who understands seawater-cooled systems, not a generic HVAC contractor. Since 1981 we have diagnosed and repaired every kind of onboard cooling system.
We service direct-expansion and chilled-water systems, self-contained and split units, and 12/24V DC, engine-drive, and 110/220V configurations. From clogged seawater strainers to failed pumps, compressors, and control boards, we find the real cause and fix it.
Common marine AC problems we solve
Blowing warm air
Usually low refrigerant, restricted seawater flow, or a failing pump — we trace it to the source instead of guessing.
Weak or no airflow
Blower motors, clogged coils, and ducting issues that quietly kill cooling performance.
Tripping or short cycling
Electrical faults, control-board failures, and high-pressure shutdowns from poor raw-water flow.
Water in the bilge
Blocked condensate drains and pan overflows that risk damage below decks.
How our service works
A straightforward, honest process from first call to verified repair.
1. Call & assess
Tell us your symptoms and system type. We gather the details that point to the likely cause before we arrive.
2. Dockside diagnosis
We come to your slip, test the system end to end, and identify the real fault — not a guess.
3. Repair or recondition
We fix, recondition, or source the right parts, always favoring repair over costly replacement where we can.
4. Verify & advise
We confirm the system holds temperature, then share simple maintenance tips to keep it running cold.
Frequently asked questions
The most common causes are restricted seawater flow (a clogged strainer, growth in the intake, or a weak pump), low refrigerant charge, or a failing compressor. Marine AC relies on seawater for cooling, so we always check raw-water flow first, then refrigerant and electrical components.
Request this service
Tell us about your system and we'll be in touch to schedule a dockside visit.
Marine cooling problem? We're ready.
Call now or request service and a Hawthorne Marine technician will get you back on the water — cold.