QHHR RV Wall Thermostat Replacement for Dometic — Black 3‑Wire Single‑Zone with Blue Backlit LCD and Capacitive Touch

QHHR 3316250.712 is a single-zone, 3-wire RV wall thermostat designed to replace Dometic controls and give you a clear blue-backlit LCD and capacitive touch operation for precise temperature management.

Replace a worn or incompatible control in your camper or motorhome with this QHHR wall thermostat engineered to work with many Dometic air conditioner models. Instead of mechanical buttons, it uses capacitive touch sensing for a sleek front panel, and its blue backlight LCD keeps readings readable in dim conditions. The unit is black with a compact profile that fits common RV cutouts and connects with three wires for straightforward installation on single-zone systems.

Will this thermostat work with my Dometic air conditioner?

Yes — the QHHR 3316250.712 is compatible with a wide range of Dometic units and related model numbers. Check your existing model list against the compatibility set to confirm an exact match before purchase.

• Compatible Dometic models include 457915, 459516, 459530 and several 540xxx/640xxx series units.
• Also lists factory references like B57915, B59516, H540316 for cross-compatibility.
• Designed for single-zone RV, trailer and camper air conditioning systems that use a 3-wire connection.

How easy is installation and set up?

Installation is straightforward for anyone comfortable with basic RV wiring and replacing a wall thermostat. The three-wire design keeps wiring simple, and the unit mounts into common RV thermostat openings.

• 3-wire connection matches typical single-zone RV HVAC systems for quick swap-in.
• Capacitive touch front eliminates mechanical parts that can wear out over time.
• Compact footprint fits standard wall cutouts used in many campers and trailers.

What controls and display features does it offer?

This thermostat uses capacitive touch controls for a modern, responsive feel and a blue-backlit LCD to keep temperature and mode information visible in low light. The simplified interface focuses on essential settings to avoid overwhelming small RV control panels.

• Blue backlight LCD for clear visibility at night or in dim interiors.
• Capacitive sensing gives a flat, easy-to-clean front with no moving buttons.
• Displays current temperature and basic mode icons for quick reference.

What warranty and support come with the thermostat?

QHHR provides a one-year warranty with this replacement thermostat and offers customer support if installation or performance questions arise. Keep your purchase information and reach out promptly if you need help.

• One-year limited warranty included with purchase.
• Customer support available for installation guidance and troubleshooting.
• Replacement recommended if compatibility or wiring uncertainties exist—ask support before modifying your system.

Who is this for: This QHHR thermostat is aimed at RV owners, trailer renovators, and mobile home technicians who need a reliable single-zone replacement for Dometic-style air conditioners. It suits people who prefer a low-profile, touch-sensitive control with a bright LCD, and anyone seeking a quick, 3-wire swap to restore temperature control in their camper or motorhome.