38203-064 Coleman MACH 3 AC 13.5 White

The Coleman‑Mach 38203‑064 is a genuine OEM Mach 3 rooftop air conditioner delivering 13,500 BTU cooling capacity for RVs, travel trailers, fifth wheels, and motorhomes. Finished in polar white, this rooftop unit is designed to provide dependable cooling performance while maintaining compatibility with Coleman‑Mach ceiling assemblies, thermostats, and control systems.

The Mach 3 series is recognized for its compact rooftop design, high airflow output, and reliable operation in demanding RV environments. Its durable construction and efficient cooling capacity make it an excellent replacement for existing Coleman‑Mach rooftop units or a direct OEM service replacement.

Designed for ducted and non‑ducted RV air conditioning applications depending on the interior ceiling assembly installed.

🔧 Cross‑Reference (Technician Binder Card Format)

Direct OEM

• 38203‑064 — Coleman‑Mach 3 Rooftop Air Conditioner

Manufacturer

• Coleman‑Mach
• Airxcel

Specifications

• Cooling Capacity: 13,500 BTU
• Color: White
• Unit Type: Rooftop Air Conditioner
• Application: RV Climate Control
• OEM Replacement: Yes

Compatible Components

• 9330‑3411 Ceiling Assembly & Thermostat Kit
• 8430‑3691 ChillGrille Filter Kit
• 8333A9021 Hard Start Kit
• Coleman‑Mach Control Boxes
• Coleman‑Mach Thermostats
• Coleman‑Mach Ceiling Assemblies

Related Coleman‑Mach Units

• Mach 1 Series
• Mach 3 Series
• Mach 8 Series
• Mach 15 Series
• Coleman Heat Pump Models

🛠️ Technician Notes

Common Applications

• Travel Trailers
• Fifth Wheels
• Motorhomes
• Toy Haulers
• Park Models

Common Symptoms of Unit Failure

• Reduced cooling performance
• Compressor will not start
• Fan motor failure
• Refrigerant system failure
• Excessive operating noise
• Electrical control failures

Installation Tips

• Verify roof opening dimensions before installation.
• Replace rooftop gasket during unit replacement.
• Inspect ceiling assembly compatibility.
• Confirm proper voltage supply before startup.
• Clean return air pathways for maximum airflow.

Recommended Inspection Items

• Capacitors
• Ceiling assembly
• Thermostat
• Return air filters
• Roof gasket
• Electrical supply connections