{"product_id":"qhhr-rv-wall-thermostat-relay-box-for-dometic-3316230-000-black-lcd-heat-cool-control-plug-and-play-replacement","title":"QHHR RV Wall Thermostat \u0026 Relay Box for Dometic 3316230.000 — Black LCD, Heat\/Cool Control, Plug-and-Play Replacement","description":"\u003cp\u003e\u003cstrong\u003eThe QHHR 3316230.000 RV wall thermostat\/relay box is a direct-fit replacement for Dometic RV air conditioner control modules, providing simple heat and cool control with an easy-to-read LCD and one-year warranty.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your RV, camper or travel trailer uses a Dometic-style wall thermostat and the original control is failing, this QHHR assembly (also referenced as 3316230.700 and paired with the black wall thermostat 3316230.714) is built to restore reliable temperature control. It combines the relay box electronics and a clear LCD thermostat interface to operate roof-mounted air conditioners and heat systems in small mobile living spaces. Designed for plug-and-play replacement where wiring and mounting match the original Dometic parts, it helps bring your climate control back to dependable operation.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this thermostat\/relay box improve my RV’s temperature control?\u003c\/h3\u003e\n\u003cp\u003eThe unit replaces worn or non‑functional control boards and thermostats, restoring proper on\/off cycling, mode selection and temperature readout. Because it integrates the relay and display, it reduces the number of separate replacement parts and troubleshooting steps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect compatibility with part numbers 3316230.000 and 3316230.700.\u003c\/li\u003e\n  \u003cli\u003eLCD display for clear temperature and mode information, visible in low light.\u003c\/li\u003e\n  \u003cli\u003eSimplifies repairs by combining relay and thermostat functions into one assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation complicated—can I swap it myself?\u003c\/h3\u003e\n\u003cp\u003eIn many RVs this unit is a straightforward swap if the connector and mounting match the original Dometic part. Basic electrical safety knowledge and removal of power before work are required; if wiring differs, consult a technician or service manual to avoid damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for direct replacement when original connectors align.\u003c\/li\u003e\n  \u003cli\u003eTurn off battery and shore power before starting work.\u003c\/li\u003e\n  \u003cli\u003eKeep original screws and wiring order to simplify reinstallation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features does the LCD thermostat display provide?\u003c\/h3\u003e\n\u003cp\u003eThe backlit LCD shows current temperature and control settings, making it easier to see at night or in dim interiors. The clear readout helps you confirm mode (heat\/cool) and setpoint without guessing, so operation is faster and more precise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBacklit screen for low-light readability.\u003c\/li\u003e\n  \u003cli\u003eDisplays current temperature and selected mode.\u003c\/li\u003e\n  \u003cli\u003eUser-friendly interface tailored to common RV HVAC functions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and reliability can I expect?\u003c\/h3\u003e\n\u003cp\u003eQHHR backs this replacement thermostat\/relay box with a one-year warranty, giving short-term protection against manufacturing defects or premature failures. Proper installation and protecting the unit from moisture and vibration will help ensure long-term reliability in a mobile environment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-year limited warranty included.\u003c\/li\u003e\n  \u003cli\u003eBuilt for RV conditions—compact design to fit wall mounting locations.\u003c\/li\u003e\n  \u003cli\u003eReplaces specific Dometic part numbers to restore original functionality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: RV owners, repair shops and DIY technicians who need a dependable replacement control for Dometic-style air conditioners in campers, motorhomes and travel trailers. If your existing thermostat or relay box is unresponsive, erratic, or displays no readout, the QHHR 3316230.000 assembly with the black wall thermostat 3316230.714 offers a practical, covered solution to get your climate control working again quickly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace Dometic part 3316230.000?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It's designed as a compatible replacement for 3316230.000 and 3316230.700.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is professional installation required?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not always; basic wiring experience suffices, but consult a technician if connectors differ.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QHHR","offers":[{"title":"Default Title","offer_id":48081125081246,"sku":"B0D48GVZNW","price":100.4,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/qhh_r-front-panel-black-wall-thermostat.jpg?v=1785796936","url":"https:\/\/northtrailauto.ca\/products\/qhhr-rv-wall-thermostat-relay-box-for-dometic-3316230-000-black-lcd-heat-cool-control-plug-and-play-replacement","provider":"North Trail Auto","version":"1.0","type":"link"}