{"product_id":"qhhr-rv-wall-thermostat-and-relay-box-replacement-for-dometic-3316230-000-black-lcd-thermostat-heat-cool-control","title":"QHHR RV Wall Thermostat and Relay Box Replacement for Dometic 3316230.000 — Black LCD Thermostat, Heat\/Cool Control","description":"\u003cp\u003e\u003cstrong\u003eQHHR 3316230.000 RV wall thermostat and relay box replaces Dometic units to give campers reliable heat and cooling control from an easy-to-read black wall thermostat.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis QHHR replacement thermostat and relay assembly is designed for RVs, trailers, and campers that use Dometic-style HVAC systems. It combines a wall-mounted control and relay box to manage on-board air conditioners and furnaces, offering a clear LCD readout and simple temperature adjustment. The unit ships with a one-year warranty and fits parts listed as 3316230.000 and 3316230.700, while the compatible black wall thermostat model number is 3316230.714.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this thermostat work with my RV’s existing Dometic system?\u003c\/h3\u003e\n\n\u003cp\u003eThe QHHR unit is built to be a direct replacement for the Dometic part numbers referenced, providing matching electrical and mounting points for straightforward swaps. It integrates with the RV’s HVAC wiring to operate cooling and heating via the relay box, minimizing installation time for experienced DIYers or technicians.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect compatibility with Dometic parts 3316230.000 and 3316230.700\u003c\/li\u003e\n  \u003cli\u003eBlack wall thermostat model 3316230.714 for consistent appearance\u003c\/li\u003e\n  \u003cli\u003eStandard relay wiring that connects to existing HVAC circuits\u003c\/li\u003e\n  \u003cli\u003eDesigned to match original mounting and connector layouts where noted\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make the display and controls easy to use?\u003c\/h3\u003e\n\n\u003cp\u003eThe thermostat includes a clear LCD display engineered for legibility in varied light and typical RV interiors. Controls are simple and intuitive, allowing you to set target temperatures quickly without navigating complex menus, which is ideal when you want fast comfort adjustments on the road.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigh-contrast LCD screen for easy reading in low light\u003c\/li\u003e\n  \u003cli\u003eBasic temperature up\/down controls for quick changes\u003c\/li\u003e\n  \u003cli\u003eSimple mode selection for heat or cool operation\u003c\/li\u003e\n  \u003cli\u003eMinimalist faceplate design suited to RV interiors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and maintenance?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation typically involves removing the old thermostat, matching wiring terminals, and securing the new relay box and wall thermostat in place. Basic troubleshooting and occasional cleaning of the thermostat face and connectors will keep the unit performing as expected; professional installation is recommended if you’re not comfortable with vehicle electrical systems.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSwap-in replacement for compatible part numbers to reduce fitment issues\u003c\/li\u003e\n  \u003cli\u003eRequires matching wire connections to existing HVAC harness\u003c\/li\u003e\n  \u003cli\u003eGentle periodic cleaning of the LCD and terminals advised\u003c\/li\u003e\n  \u003cli\u003eOne-year manufacturer warranty covers defects under normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the relay box improve HVAC reliability in a camper?\u003c\/h3\u003e\n\n\u003cp\u003eThe relay box centralizes switching for heating and cooling loads, protecting the thermostat from high current draw and reducing wear on the control circuitry. By using a dedicated relay assembly, the thermostat operates as a low-voltage controller while the relay handles the heavier electrical load of the RV’s air conditioner or furnace.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRelays carry heavy loads, extending thermostat life\u003c\/li\u003e\n  \u003cli\u003eCleaner separation of control and power circuits for safety\u003c\/li\u003e\n  \u003cli\u003eReliable switching reduces intermittent HVAC faults on the road\u003c\/li\u003e\n  \u003cli\u003eDesigned for the electrical demands of RV appliances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This QHHR thermostat and relay box is aimed at RV owners, camper renovators, and service technicians who need a dependable Dometic-compatible replacement. It’s well suited for anyone replacing worn or faulty control units, updating a camper’s interior with a black thermostat face, or installing a like-for-like part during HVAC maintenance. If you prioritize straightforward installation, clear readouts, and rugged relay switching for reliable temperature control while traveling, this unit is a practical choice.\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: Is this thermostat a direct replacement for Dometic part 3316230.000?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This QHHR unit replaces Dometic parts 3316230.000 and 3316230.700 and fits like-for-like where wiring and mounts match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the product include a warranty?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. QHHR provides a one-year warranty covering defects under normal use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QHHR","offers":[{"title":"Default Title","offer_id":67585909293241,"sku":"B0D48GVZNW","price":153.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/qhhr-black-wall-thermostat-front-view.jpg?v=1790479780","url":"https:\/\/redleafauto.ca\/products\/qhhr-rv-wall-thermostat-and-relay-box-replacement-for-dometic-3316230-000-black-lcd-thermostat-heat-cool-control","provider":"Redleaf Auto","version":"1.0","type":"link"}