Lrichy RV Thermostat for Dometic CT — 3-Wire 12V DC, Capacitive Touch & Blue Backlit Display

The Lrichy 3316250.712 is an upgraded 12V DC, 3-wire RV thermostat designed as a direct-fit replacement for compatible Dometic CT systems, offering capacitive touch controls, single-zone cool/heat management and a clear blue-backlit display.

This compact, user-friendly thermostat replaces the factory Dometic 3316250.712 in rigs that use a 3-wire, 12V DC control system. It combines a modern capacitive touch panel with straightforward temperature and fan settings so you can manage heating and cooling in a single zone without complicated programming. Before ordering, double-check the wire count on your original control—this unit is not compatible with 2- or 6-wire systems.

How easy is it to install and set up?

Installation is intentionally simple for RV owners familiar with thermostat swaps: remove the old control, confirm a 3-wire 12V DC hookup, and connect the matching wires. The interface is intuitive—power, mode selection and up/down temperature buttons are on the front—so basic configuration is fast.

• Direct replacement form factor for compatible Dometic CT thermostats
• Works only with 3-wire, 12V DC RV systems—check before buying
• Plug-and-play wiring: swap wires from the old unit to the new one
• Simple on/off, mode, and temperature buttons for quick setup

What controls and temperature ranges does it provide?

This thermostat supports both cooling and heating in a single zone with three fan speed options and a readable blue backlight. Temperature control is available in Fahrenheit or Celsius, and ranges are tailored for typical RV climate needs.

• Furnace control range: 40°F–90°F
• Air conditioning control range: 55°F–90°F
• Three fan speeds for finer airflow adjustment
• Toggle between °F and °C by holding both ▲ and ▼ buttons

What makes the touch controls and display different?

The upgraded capacitive touch surface replaces older mechanical buttons for a smooth, responsive user experience that resists wear. The blue backlight improves readability in low-light conditions common in RV interiors.

• Capacitive touch technology for reliable, silent inputs
• Durable surface less prone to mechanical failure
• Blue backlit display for clear viewing at night
• Responsive mode switching and temperature adjustments

What support and warranty are included?

Lrichy stands behind the product with customer-focused support and a two-year warranty. If the thermostat has a manufacturing fault or compatibility issue, the company offers refund or replacement options through the seller.

• 2-year warranty covering manufacturing defects
• Replacement or refund available for qualifying issues
• Customer support via the retail platform for troubleshooting
• Clear return/exchange pathways for a smooth after-sales experience

Who is this for? The Lrichy 3316250.712 is aimed at RV owners and technicians who need a modern, easy-to-use replacement thermostat for Dometic CT systems that use a 3-wire 12V DC configuration. It’s a good fit if you want a responsive touch interface, simple single-zone cool/heat control, and a reliable backlit display for clear nighttime viewing. Do confirm wire compatibility before purchase to ensure proper operation.