Self-contained A/C · equipment we service

CTM Self-Contained Marine A/C Service

Diagnostics, repair and replacement planning for CTM self-contained marine air-conditioning units. CTM products are listed by Citi Marine; our recommendation follows the actual vessel, installed equipment and compatible supporting systems.

CTM is a serviced equipment brand. This page does not claim that ACCUMAR is a CTM dealer, factory-authorized service center or warranty provider. Dometic authorization described elsewhere does not extend to CTM.

Typical lead time: 3–4 weeks. Service is by appointment; there is no emergency service. Service is by appointment; there is no emergency service.

CTM Marine air conditioning logo

Replacement is a system decision

A similar BTU label is not enough.

A viable self-contained replacement also depends on electrical supply, water flow, condensate, ducting, control/harness compatibility, physical service access and the conditions measured on the boat.

Citi Marine–listed CTM equipment context

Focused on the self-contained replacement path.

The product descriptions identify possible equipment choices. They do not establish what is in stock, compatible with a given vessel or appropriate without an on-board review.

This page’s primary equipment focus

CTM self-contained marine A/C

Citi Marine lists CTM self-contained units for new-install and replacement applications. We evaluate the installed or proposed unit with the vessel’s actual capacity needs, voltage, seawater circuit, airflow, condensate routing, electrical protection and service access.

Citi Marine CTM information (opens in a new tab)

Examples, not an inventory promise

CT-6 through CT-25 listed variants

Citi Marine’s CTM category lists CT-6, CT-10, CT-12, CT-16 and CT-25 variants, among other configurations. Model suffix, voltage, frequency, soft-start option and current product availability must be checked before a replacement is specified.

Citi Marine CTM information (opens in a new tab)

Installed-generation verification

Controls & retrofit interfaces

Citi Marine describes CTM compatibility with certain installed Dometic, Cruisair, Marine Air and Micro Air controller, thermostat and cable configurations. Compatibility is not automatic: display, board, harness, software, power and equipment generation must be verified for the exact boat.

Citi Marine CTM information (opens in a new tab)

Measured replacement planning

Confirm the interfaces before choosing a unit.

We begin with the existing equipment tag, symptoms and vessel conditions. The field review identifies what can be repaired, which components must be reworked and whether a replacement path is technically viable before a unit is selected.

Equipment identity

Model, serial number, voltage, frequency and installed configuration are recorded before parts research.

Air & water circuits

Airflow, ducting, condensate, seawater intake, strainer, pump and discharge are evaluated as installed.

Controls & wiring

Display, board, sensor, cable, protection and power are checked before an interface is considered reusable.

Written scope

Access, vessel modifications, parts path and scheduling are confirmed before a part, unit or completion date is represented.

ACCUMAR field context

The systems around a self-contained unit matter.

These project photographs show marine HVAC system context, not CTM-specific equipment. They support why water flow, electrical controls and service access must be reviewed alongside the cabin unit.

Self-contained marine air-conditioning unit during exterior service cleaning
Self-contained service contextACCUMAR field photograph of a removed self-contained A/C unit during service. It is not represented as CTM equipment.
Marine HVAC seawater manifold and cooling-water plumbing in a machinery space
Seawater-circuit reviewACCUMAR field photograph of a marine HVAC water circuit; the installed unit’s product identity is not assigned from the image.
Open marine HVAC control enclosure with board, relay, capacitors and wiring
Controls inspectionControl enclosure documented during marine HVAC service; replacement matching depends on the installed system.

Scheduling & service review

Business hours: Monday–Saturday, 8:00 AM–6:00 PM. Typical lead time: 3–4 weeks. Service is by appointment; there is no emergency service. Our AI phone receptionist answers calls 24/7. Service is by appointment, not 24/7, and there is no emergency service.

Prepare the request

Include the CTM or existing-unit model and serial number, vessel and dock/yard location, voltage, controller photo, fault code, seawater discharge observations and equipment-access photos.

Common Questions

CTM Self-Contained Marine A/C Questions

Select a question to view the answer. Opening another question closes the previous one.

Clear scope. Written estimate.

Tell us what the vessel needs.

Open ACCUMAR’s verified Jobber Client Hub to submit available request details, review a quote, approve a required deposit, and keep job records in one secure place.

Typical price ranges

A/C service and repair
Typical A/C repair is $160–$850 on average. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
A/C compressor replacement
Compressor replacement is $600–$1,800, depending on the unit. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
A/C pump replacement
Most jobs run $1,000–$1,500, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
A/C unit replacement (one unit)
Most jobs run $4,500–$7,000, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
Chiller service
Most jobs run $550–$900, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
Refrigeration repair
Most jobs run $400–$850, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.
Fridge, freezer or ice maker replacement
Most jobs run $1,300–$3,100, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.

A/C maintenance program: $140 per visit

Diagnostic visit

Most jobs run $200–$400, parts included, before tax. Every boat is different, and we confirm the price after we look at it. Labor starts at $160/hr with a 1-hour minimum.

Our AI phone receptionist answers calls 24/7. Service is by appointment, not 24/7, and there is no emergency service. Typical lead time: 3–4 weeks.

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Frequently Asked Questions

Awaiting Roland’s real customer questions and answers.

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