Lrichy RV Thermostat Coleman Mach Replacement 6-Wire White — Single-Stage HVAC Control, 12V/115V Compatible

Lrichy OEM 7330G3351 is a six-wire RV thermostat that replaces Coleman Mach series controls to manage heating, cooling, fan, and furnace circuits in mobile homes and trailers.

This Lrichy thermostat is built for RV owners who need a direct replacement for Coleman Mach-series units and want straightforward control over single-stage heating and cooling systems. Engineered to interface with 12 VDC relay control circuits and 115 VAC air-conditioner loads, the unit follows OEM mounting and wiring conventions so it swaps into existing installations with minimal modification.

How does this thermostat work with Coleman Mach air conditioners?

The thermostat provides single-stage switching for air conditioning and heating, sending 12 VDC control signals to onboard relays while handling the 115 VAC compressor circuits via those relays. It matches OEM wiring patterns and electrical limits to ensure compatibility.

• OEM numbers: 7330G3351 and 7330F3852 compatibility
• Designed for Mach 15, Mach 3 Plus, Mach 1 Power Saver, Mach III Power Saver, Mach 8, Polar Cub, and Roughneck models
• Controls AC compressor through relay circuits; safe for standard RV HVAC wiring

What features make installation quick and reliable?

Installation is simplified by six color-coded pre-treated wires and a clear wiring diagram included in the package. The thermostat’s form factor follows OEM mounting points, reducing the need for modifications and lowering installation time.

• Six color-coded wires for straightforward hook-up
• Pre-treated wire ends and detailed wiring instructions included
• Mounting pattern and connector layout that align with Coleman OEM units

Which systems and electrical limits does it support?

This control is meant for single-stage heating and cooling systems typical of RVs and travel trailers; it switches 12 VDC control circuits and interfaces with 115 VAC compressor loads via relays. It can operate RV furnace controls that draw under one amp from the 12 VDC circuit.

• Single-stage heating/cooling selector for gas, electric heaters, and fan
• Operates 12 VDC control circuits; suitable for furnace circuits under 1 amp
• Compatible with common Coleman Mach-series rooftop units

What support and warranty does Lrichy provide?

Lrichy includes a two-year warranty covering manufacturing defects and offers free exchanges or refunds for qualifying issues. Customer support is available through the sales channel to assist with installation questions or product concerns.

• 2-year warranty for peace of mind
• Free exchange and refund policy for quality problems
• Customer service accessible through the original point of purchase

Who is this for: RV owners, technicians, and DIYers who need a reliable direct-replacement thermostat for Coleman Mach-series air conditioners and want a product that follows OEM wiring and mounting standards. It's ideal for mobile homeowners who require simple, single-stage temperature control across air conditioning, heating, and fan functions without changing existing HVAC wiring infrastructure.