Self-Contained Units
Compact Dometic marine air conditioners selected by capacity, voltage, airflow, seawater flow, and available installation space.
Mobile boat AC repair, diagnostics, installation, troubleshooting, and AC flush service in Fort Myers, Cape Coral, Naples, and throughout Southwest Florida. EPA 608 certified technicians with 30+ years of experience. We also sell Dometic self-contained, split, and chiller equipment with direct factory parts and technical support. Service is delivered to your dock.
Marine AC service across SWFL includes diagnostics, seawater-flow troubleshooting, repairs, preventive maintenance, descaling, installation, controls, self-contained units, split systems, and chilled-water systems.
Diagnose compressor, refrigerant-circuit, fan, thermostat, control, electrical, airflow, drainage, and seawater-flow problems across supported marine air-conditioning systems.
New marine AC system design and installation for boats of all sizes. Proper BTU sizing, ducting, seawater plumbing, and electrical connections. Dometic, Webasto & more.
Learn moreComprehensive diagnostic service to identify why your boat's AC isn't cooling. Pressure testing, refrigerant analysis, airflow measurement, and seawater flow verification.
Evaluate seawater flow and heat-exchanger condition, then clean the circuit when measurements and inspection support that work.
Annual marine AC maintenance including full system inspection, refrigerant check, strainer cleaning, impeller inspection, and performance testing.
Dometic self-contained, split, and chilled-water equipment, direct factory parts access, application selection, installation, and commissioning by factory-trained technicians.
Learn moreDometic equipment sales & support
Accumar is an authorized Dometic dealer and service provider in Southwest Florida. Our factory-trained technicians work with direct factory technical support and direct factory parts access to identify, source, install, commission, and service the correct equipment for the vessel.
Many Dometic units and parts may be available the same day or next business day, subject to model, voltage, capacity, order timing, current stock, and factory or distributor availability. We confirm availability before promising a pickup, delivery, or installation date.
Compact Dometic marine air conditioners selected by capacity, voltage, airflow, seawater flow, and available installation space.
Condensing units, air handlers, controls, and replacement planning for quieter multi-zone cabin cooling.
Dometic chilled-water plants, air handlers, pumps, controls, and retrofit planning for larger yachts and multi-zone systems.
Accumar is one of Southwest Florida's largest Dometic marine air-conditioning installers and service partners.
South Florida saltwater doesn't forgive neglect. Here's what we pull out of marine AC strainers.

Actual raw water strainer from a boat in Fort Myers. Barnacles and calcium scale choke water flow, killing cooling performance. A professional flush restores full capacity.
These manufacturer marks identify equipment Accumar evaluates for service, repair, installation, or replacement. They do not imply authorization. Dometic dealer/service status and factory-trained technician support are documented separately on this page.
Dometic
Webasto
Condaria
Cruisair
Marine Air
MarinAire
Mermaid
CTM Marine
Flow Marine Systems
TechnicoldSeasonal heat places more demand on marine air-conditioning systems and can expose restricted seawater flow, fouled heat exchangers, weak pumps, and control faults.
Baseline flow, temperature, electrical, drain, and control checks make developing problems easier to identify.
Liveaboards
High annual run time makes seawater-flow checks, filter care, condensate service, electrical inspection, and documented maintenance especially important.
Seasonal Boaters
Systems that sat idle all winter need flushing before first use. Stagnant saltwater accelerates scale — whether your boat's in the water or on the hard.
Charter / Rental
Pre-season inspection helps identify cooling, drainage, airflow, and control issues before a guest or charter turnaround.
If you notice any of these, call before it becomes an emergency.
Reduced cooling can involve seawater restriction, heat-exchanger fouling, airflow problems, sensor faults, or refrigerant-circuit issues. Testing identifies the actual cause before parts are replaced.
Short-cycling can involve a safety limit, restricted heat rejection, electrical instability, sensors, controls, or refrigerant conditions. Continued operation may increase equipment stress.
Reduced discharge may indicate a clogged strainer, worn pump or impeller, air leak, fouled condenser, closed valve, or another seawater-circuit restriction.
Odors can originate at filters, drain pans, evaporators, condensate lines, ducting, or surrounding materials. The correct cleaning scope depends on what the inspection finds.
A trip can involve startup components, compressor load, wiring, connections, supply voltage, or protection devices. Stop repeated resets and have the circuit and equipment diagnosed.
Common causes include restricted seawater flow, a fouled condenser, strainer or pump problems, a refrigerant leak, thermostat or control faults, airflow restrictions, electrical issues, or compressor performance. We diagnose flow, temperatures, pressures, controls, and electrical load before recommending repair.
A high-pressure lockout can involve inadequate seawater flow, a restricted or fouled condenser, pump or strainer problems, airflow issues, overcharge, a control fault, or another refrigeration-circuit condition. The stored fault, water flow, temperatures, pressures, and electrical readings should be checked before selecting a repair.
Flush intervals depend on operating hours, seawater conditions, condenser design, observed flow, pressure, temperature approach, and manufacturer guidance. Inspection and recorded baseline measurements should determine whether cleaning is needed rather than a universal calendar interval.
Marine AC repair costs depend on the system, vessel access, and scope of work. A basic diagnostic and strainer cleaning is on the lower end; a compressor replacement or full system overhaul costs more. We start every job with a thorough diagnostic to identify the root cause, then provide a clear written estimate before any work begins. No surprises. Call 239-323-9600 for a free phone consultation.
The decision depends on the diagnosed fault, equipment age and condition, refrigerant and parts support, access, repair history, electrical and seawater compatibility, and replacement-installation scope. We compare repair and replacement options after inspection rather than using a fixed percentage or age rule.
We evaluate Dometic, legacy Cruisair, Webasto, Marine Air, Mermaid, Flagship, Condaria, Marinaire, Velair, Carrier, and custom installations. Service scope and parts are confirmed from the installed model, documentation, symptoms, access, availability, and required tooling.
Not necessarily. Odor can involve standing condensate, a restricted drain, wet insulation, dirty filters or coils, duct contamination, bilge sources, or other vessel conditions. We inspect the drain path, pan, filter, coil, blower area, ductwork, and nearby moisture sources before recommending cleaning or component work.
Accumar offers 24/7 assistance for urgent marine AC issues in Southwest Florida. Call 239-323-9600 so we can assess the symptoms, vessel location, safe access, technician availability, and likely parts requirements. Response timing is confirmed case by case.
Yes. We design and install self-contained, split, and chilled-water systems after reviewing heat load, voltage, seawater plumbing, ducting, drainage, controls, equipment access, and current product availability. Dometic equipment receives the separately documented dealer, factory-trained technician, direct-support, and parts treatment shown on this page.
Service frequency depends on hours, seasonal use, water conditions, equipment type, service history, and manufacturer guidance. A useful visit may include strainer and pump checks, airflow and filter inspection, condensate drainage, electrical connections, controls, temperature measurements, and condenser evaluation; cleaning or refrigerant work should be condition-based.
Breaker trips can involve supply voltage, wiring or connections, overcurrent protection, capacitors, motors, pumps, compressor load, water flow, or another fault. Repeatedly resetting a breaker without diagnosis can be unsafe; verify the circuit and equipment readings before returning the system to service.
Boat length alone is not enough. Capacity planning should consider compartment volume, glazing, insulation, occupancy, exposure, duct design, air distribution, electrical supply, seawater conditions, zone layout, and existing equipment. We use an on-board heat-load review and current manufacturer data before recommending equipment.
Liveaboard duty cycles justify more frequent condition checks than intermittent use, but the interval depends on hours, water conditions, equipment, and observed trends. Track strainer condition, seawater discharge, filter and coil cleanliness, condensate drainage, temperature performance, electrical load, and alarms; service when measurements or manufacturer guidance indicate.
Self-contained units combine the refrigeration components and air handler in one assembly. Split systems locate condensing and air-handling components separately. Chilled-water systems use central chillers and distributed air handlers. The appropriate type depends on zones, load, space, noise goals, plumbing, electrical supply, controls, access, and redundancy requirements.
Service Area
Mobile marine air conditioning repair delivered to your dock, marina, or boatyard. Based in Fort Myers, we service vessels from Marco Island to Port Charlotte and everywhere in between.
Don't suffer in the Florida heat. Call Accumar Marine Services for fast, professional marine air conditioning repair delivered to your dock.
EPA 608 Certified \u2022 30+ Years Experience \u2022 Same-Day Service Available \u2022 All Brands
Seasonal checklists, diagnostic tips, and marine AC insights from 30+ years in the field. No fluff — just what works.
Share the vessel, system, symptoms, location, timing, and available photos. We’ll review the details and respond with the right next step.