IHOUMEX RV Thermostat 7330F3852 Single-Stage 12V Replacement for Coleman Mach — Mechanical Readout, Fan Speed Control

The IHOUMEX 7330F3852 is a 12V single-stage RV wall thermostat that replaces Coleman Mach controls to give you manual heat, cool and fan-speed control for consistent onboard comfort.

This compact, mechanical thermostat is designed to swap into Coleman Mach series air conditioner systems and similar RV units, offering straightforward temperature adjustment, Auto/On fan modes and high/low fan speed selection. It uses a simple six-color wire harness for faster fitting and a mechanical readout so you can see set and ambient temperatures at a glance. Built from durable materials for mobile use, the unit aims to restore reliable climate control in older RVs or serve as a direct replacement during repairs.

Which Coleman and RV air conditioners is this compatible with?

This replacement fits multiple Coleman Mach models and related RV AC systems that use the same single-stage thermostat wiring and control layout. It is intended for Mach series air conditioners and common rooftop units that accept the 7330F3852 electrical pattern. Always compare your existing thermostat connector and wiring colors before purchasing to confirm compatibility.

• Works with Coleman Mach 15, Mach 3 Plus, Mach 1 Power Saver and Mach III Power Saver series
• Compatible with Mach 8, Mach 8 Polar Cub, Roughneck and other Mach variants
• Matches Coleman Mach part patterns like 8330-336, 337, 338, 339, 368, 386
• Designed for 12 VDC single-stage HVAC systems commonly found in RVs

How do I install the 7330F3852 thermostat in my RV?

Installation is intended to be straightforward for anyone comfortable with basic RV wiring: disconnect power, remove the old thermostat, and transfer the six color-coded wires to the matching terminals on the replacement. The included manual outlines the original wiring order and terminal mapping to minimize errors. If you are unsure about working with 12 VDC wiring, consult a qualified RV technician to avoid damage or safety issues.

• Six color-coded wires match common Coleman terminal layouts for fast re-hookup
• Mechanical control eliminates software pairing or programming steps
• Mounts to standard single-gang wall openings used in many RVs
• Always disconnect power before starting installation for safety

What controls and settings does this thermostat offer?

The IHOUMEX 7330F3852 provides manual temperature adjustment plus fan-mode and fan-speed control to tailor airflow and comfort. You can switch between Auto and On fan modes and select high or low fan speed, while the mechanical readout shows the set position. It is a single-stage control, so it operates basic heat/cool cycles rather than multi-stage or smart thermostat features.

• Auto and On fan modes for automatic cycling or continuous airflow
• High and Low fan speed selector to balance comfort and noise
• Mechanical dial/display for tactile, reliable adjustments
• Single-stage heat/cool control compatible with many RV AC systems

How durable and travel-ready is this replacement thermostat?

Designed for mobile life, the thermostat is built from robust components to tolerate the vibration and temperature swings common in RV use. Its simple mechanical design reduces the number of electronic failure points, supporting long-term reliability on road trips. Routine care—secure mounting and clean terminal contacts—helps preserve function over many seasons.

• Sturdy housing resists vibration and typical RV wear
• Mechanical controls reduce electronic complexity and failure risk
• Quality terminals resist corrosion when properly installed
• Supported by a clear wiring guide for secure, correct connections

Who is this for: RV owners, fleet managers or technicians who need a direct, no-frills replacement for Coleman Mach-style thermostats. It’s ideal when you want a reliable, mechanical control for a single-stage 12 VDC RV HVAC system without adding smart features. Choose this unit if your current thermostat is failing, if you’re restoring an older RV, or if you need a drop-in compatible part for Coleman Mach series air conditioners.