[{"@context":"https:\/\/schema.org\/","@type":"LiveBlogPosting","@id":"https:\/\/livingpioneer.com\/how-to-tell-if-rv-thermostat-is-bad\/#LiveBlogPosting","mainEntityOfPage":"https:\/\/livingpioneer.com\/how-to-tell-if-rv-thermostat-is-bad\/","headline":"How to Tell If RV Thermostat is Bad?","name":"How to Tell If RV Thermostat is Bad?","description":"The RV thermostat is part of the system that helps to regulate the temperature in the motorhome, trailer, or camper. Sometimes, you may be getting strange readings, an unresponsive display, or a furnace that activates and deactivates under odd circumstances. Table of Contents show How to Tell If RV Thermostat is Bad? What Causes a […]","datePublished":"2021-07-01","dateModified":"2024-01-05","author":{"@type":"Person","@id":"https:\/\/livingpioneer.com\/author\/pete\/#Person","name":"Pete","url":"https:\/\/livingpioneer.com\/author\/pete\/","identifier":2,"image":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/litespeed\/avatar\/30c83c48d82c080140bb064c7762d28a.jpg?ver=1779254525","url":"https:\/\/livingpioneer.com\/wp-content\/litespeed\/avatar\/30c83c48d82c080140bb064c7762d28a.jpg?ver=1779254525","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Living Pioneer","logo":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2020\/03\/living-pioneer-icon-logo-50x50-1.png","url":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2020\/03\/living-pioneer-icon-logo-50x50-1.png","width":50,"height":50}},"image":{"@type":"ImageObject","@id":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2021\/07\/gauge-3936467_1920-600x400r.jpg","url":"https:\/\/livingpioneer.com\/wp-content\/uploads\/2021\/07\/gauge-3936467_1920-600x400r.jpg","height":400,"width":600},"url":"https:\/\/livingpioneer.com\/how-to-tell-if-rv-thermostat-is-bad\/","video":[{"@context":"http:\/\/schema.org\/","@type":"VideoObject","@id":"https:\/\/www.youtube.com\/watch?v=d2E5wgLNzac#VideoObject","contentUrl":"https:\/\/www.youtube.com\/watch?v=d2E5wgLNzac","name":"How to Upgrade Your RV Thermostat","description":"In this video we demonstrate how to upgrade your RV thermostat.  We show step by step how to replace the original analog thermostat with a new, digital thermostat called RVComfort by Coleman Mach.\n\nRVComfort Thermostat Shown in Video (Amazon):\nhttps:\/\/amzn.to\/3bKh8Gg","thumbnailUrl":["https:\/\/i.ytimg.com\/vi\/d2E5wgLNzac\/default.jpg","https:\/\/i.ytimg.com\/vi\/d2E5wgLNzac\/mqdefault.jpg","https:\/\/i.ytimg.com\/vi\/d2E5wgLNzac\/hqdefault.jpg","https:\/\/i.ytimg.com\/vi\/d2E5wgLNzac\/sddefault.jpg","https:\/\/i.ytimg.com\/vi\/d2E5wgLNzac\/maxresdefault.jpg"],"uploadDate":"2021-03-15T00:00:06+00:00","duration":"PT8M28S","embedUrl":"https:\/\/www.youtube.com\/embed\/d2E5wgLNzac","publisher":{"@type":"Organization","@id":"https:\/\/www.youtube.com\/channel\/UCORDbb8eCXSlmxOxcMjAXKw#Organization","url":"https:\/\/www.youtube.com\/channel\/UCORDbb8eCXSlmxOxcMjAXKw","name":"Young at Heart Adventures","description":"Come join our journey as we travel and adventure in our RV!   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These are the steps you should take in order to verify that it is the thermostat that is bad and not the wiring or control board. When you make sure that the power is on to the unit, the light (if there is one) is lit inside the HVAC system and nothing happens when you turn the thermostat on then this video is for you. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.\n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\nOur Related Videos\/Articles\n\nhttps:\/\/youtu.be\/pFF1Cj2VnDQ10 \nhttps:\/\/youtu.be\/h24-n9kyw0w \nhttps:\/\/youtu.be\/GoThAlOvSts   \nhttps:\/\/youtu.be\/5lxftJiTqLg \nhttps:\/\/youtu.be\/j7HeLAZVTzs \nhttps:\/\/youtu.be\/5lxftJiTqLg  \nhttps:\/\/youtu.be\/tf2OxCDwlFY   \nhttps:\/\/youtu.be\/HhhesjH9BWI  \nhttps:\/\/youtu.be\/4ZbFzXuCu1I\nhttps:\/\/youtu.be\/fFL_ZSkAZM0  \nhttps:\/\/youtu.be\/HenOWUDX8PQ\nhttps:\/\/youtu.be\/qiAOvJhq8_s\n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\nOur HVACR Educational Books, E-Books, Workbooks, Cards, Posters, and PowerPoints:\n\nAll Our Educational Products on Our Site: https:\/\/www.acservicetech.com\/store \nAll Our Educational Products on Amazon: https:\/\/amzn.to\/48pDd82 \nMini Split Book and E-Book on Our Site- https:\/\/www.acservicetech.com\/mini-split-book\nMini Split Paperback on Amazon- https:\/\/amzn.to\/3ytHJSs\nMini Split Paperback on TruTech Tools- https:\/\/www.trutechtools.com\/BooksGuides?aff=8 \nRefrigerant Charging Book and E-Book: https:\/\/www.acservicetech.com\/newacbook \nRefrigerant Charging Paperback on Amazon: https:\/\/amzn.to\/4aw2OOd \n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\nOur HVACR Online Resources!\n\nOur HVAC Calculators: https:\/\/www.acservicetech.com\/hvac-calculators\nOur Newest Articles: https:\/\/www.acservicetech.com\/articles\nTry our HVAC\/R Quizzes! https:\/\/www.acservicetech.com\/quizzes\nOur Other Resources: https:\/\/www.acservicetech.com\/resources \n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\nTools Used in Our Videos!\n\nTool Links on Our Site: https:\/\/www.acservicetech.com\/tools\nOur Tool List on Amazon: https:\/\/www.amazon.com\/shop\/acservicetech\nSupport the Channel by purchasing tools through TruTech Tools!\nUse this link https:\/\/www.trutechtools.com\/?aff=8\nSave 6% at checkout using code \"acservicetech\"\n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac \nFollow Us On Our Social Media & Podcasting Channels! \n\nFacebook: https:\/\/www.facebook.com\/acservicetech \nInstagram: https:\/\/www.instagram.com\/acservicetech\/ \nX: https:\/\/twitter.com\/acservicetech \nLinkedIn: https:\/\/www.linkedin.com\/company\/ac-service-tech-llc \nTiktok: https:\/\/www.tiktok.com\/@acservicetech \nSpotify: https:\/\/open.spotify.com\/show\/74KXLz5uJoQZXG8V5F2r9n \nApple Podcasts: https:\/\/podcasts.apple.com\/us\/podcast\/ac-service-tech-answers-podcast\/id1522359430 \n\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\u25ac\n\u26a0\ufe0f Disclaimer: \nInformation in this video is intended for educational purposes only. 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It is my pleasure to help others achieve their life goals through a rewarding career in HVAC!\n\nOur Training Course Platform: https:\/\/www.acservicetech.com\/hvaccourses\nPurchase our Books, Workbooks, Cards: https:\/\/www.acservicetech.com\/store\nOur Website: https:\/\/www.acservicetech.com\nOur Spanish Videos: https:\/\/www.youtube.com\/@ACSTenespanol\nSupport by Shopping: https:\/\/www.amazon.com\/shop\/acservicetech\nEmail: info@acservicetech.com\n\n","logo":{"url":"https:\/\/yt3.ggpht.com\/ytc\/AIdro_mkuhQNFPHkXunBDbKNrooAk9qTkTqO-ivuA63RkWXuNCI=s800-c-k-c0x00ffffff-no-rj","width":800,"height":800,"@type":"ImageObject","@id":"https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ#VideoObject_publisher_logo_ImageObject"}},"potentialAction":{"@type":"SeekToAction","@id":"https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ#VideoObject_potentialAction","target":"https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ&t={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"},"interactionStatistic":[[{"@type":"InteractionCounter","@id":"https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ#VideoObject_interactionStatistic_WatchAction","interactionType":{"@type":"WatchAction"},"userInteractionCount":1213723}],{"@type":"InteractionCounter","@id":"https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ#VideoObject_interactionStatistic_LikeAction","interactionType":{"@type":"LikeAction"},"userInteractionCount":5809}]}],"about":["Off Grid","RVs"],"wordCount":1838,"articleBody":"The RV thermostat is part of the system that helps to regulate the temperature in the motorhome, trailer, or camper. Sometimes, you may be getting strange readings, an unresponsive display, or a furnace that activates and deactivates under odd circumstances.            Table of Contents                                    show                                                How to Tell If RV Thermostat is Bad?                            What Causes a Thermostat to Go Bad in Your RV?                            RV Thermostat Troubleshooting                            How to Test RV Thermostat?                            Is it a Digital RV Thermostat Heat Only Model?                            How Do I Reset My RV Thermostat?                            How Does an RV Thermostat Work?                            Closing Thoughts                            Related Articles        How to Tell If RV Thermostat is Bad?A thermostat may not instantly fail and no longer respond. It\u2019s a little like when a battery that\u2019s down to a 5-10% charge. Should that happen, the control unit it\u2019s powering could work intermittently or erratically sowing confusion. Is there a ghost in the machine? Hopefully not!Do bear in mind that some of the causes of bad thermostats can overlap with other ones.So, while the list below of how to tell if the RV thermostat is bad is not exhaustive, it\u2019s also a good idea to consider other likely causes.Do some RV thermostat troubleshooting (we have a troubleshooting section to take you through step-by-step what to do).  How do I know if I need to replace my thermostat? Look at these possible indicators first:Furnace or AC won\u2019t activate \u2013 When the thermostat is either not providing a reading or it\u2019s an inaccurate one, then depending on the settings on the control panel, it may prevent the furnace or AC from activating. This is because the system relies on the thermostat\u2019s reading about whether it\u2019s already too hot or too chilly. Of course, that may not be true, but that\u2019s what a dying RV thermostat is communicating incorrectly.Short-cycling problems \u2013 The RV or camper\u2019s HVAC system may fail to complete a full cycle. Therefore, if the furnace should be warming the living space up or the AC cooling it down, the system deactivates before the ideal temperature is achieved. Either you can try again, and the thermostat gives the correct readings on the second occasion and the living space becomes more comfortable, or the same thing repeats itself.A failure to communicate \u2013 Changing a temperature setting on the control panel typically creates clicking sounds when the action triggers the cooling or heating to start up. Then once that happens, the clicking sound usually goes away. However, when the clicking doesn\u2019t occur or it does, but nothing happens, then there\u2019s a failure to communicate. It\u2019s like at this point that the RV thermostat requires replacing pronto. It\u2019s not going to get any better from there!Programmed memory issues \u2013 When the thermostat has previously accepted some programmed settings but now it\u2019s completely lost the plot, then you want to despair. Reprogramming the thermostat is the first thing to try. However, if the new settings disappear again or don\u2019t work correctly, it\u2019s probably either a battery issue or something more serious.Here is our recommended RV Comfort thermostat:https:\/\/www.youtube.com\/watch?v=d2E5wgLNzacVideo can\u2019t be loaded because JavaScript is disabled: How to Upgrade Your RV Thermostat (https:\/\/www.youtube.com\/watch?v=d2E5wgLNzac)Coleman 83303862 Digital ThermostatCheck at Amazon\u24d8 If you click this link and make a purchase, we earn a commission at no additional cost to you.What Causes a Thermostat to Go Bad in Your RV?While a decent RV thermostat probably has a useful life of 10 years and possibly even longer, it\u2019s still a piece of electronics.We all know that electronic devices \u2013 and parts within them \u2013 can fail unexpectedly.While the thermostat itself might have a decade or longer of potential life, that doesn\u2019t rule out RV AC thermostat troubleshooting or work needed to the RV furnace thermostat to resolve small problems. Deteriorated wiring, dust infiltration, a bad circuit board, a display with a life of its own, or a set of faulty batteries could be causing new issues.Also, the casing could have become partially dislodged, was knocked or damaged resulting in it no longer sitting flush, the digital display on the front could have failed, or it might be something else entirely.  Read Also: How to Repair Delamination on RVRV Thermostat TroubleshootingA bit of troubleshooting is necessary to assess RV thermostat problems.This way, a proper determination can be made.Think of it like a doctor running tests to double-check their previous diagnosis; it avoids you replacing anything before it\u2019s needed.  How to Test RV Thermostat?Whether you\u2019re having Dometic RV thermostat problems or some Coleman Mach Thermostat troubleshooting is required, follow the suggestions below:Battery failure? Newer digital thermostats need one or more batteries to provide power to the control unit. It\u2019s a good idea to swap out the batteries regardless of how new they are and to re-check all the malfunctioning features. Low-charge batteries can deliver confusing results, but a fully drained battery makes the thermostat look dead too.Examine the digital display. It should be lit up. If the light is dim, and it\u2019s a backlit or a side-lit display, then perhaps the internal bulbs have failed or are failing (many laptops with an older TN panel have this problem). If there\u2019s no screen display at all, then it could indicate the thermostat is not sending information through to show on the screen. It might also suggest that the screen display itself has failed.Are the circuit breakers fooling you? It would be easy for the circuit that controls the heating and cooling equipment to have silently tripped. Usually, you won\u2019t know unless you double-check it to be sure. If one or more have tripped, then reset the affected ones, and check the thermostat and related facilities once again.Consider where the thermostat is positioned. An RV thermostat could be situated in a place where direct sunlight is shining on the thermostat panel, which didn\u2019t happen previously. Alternatively, any holes or gaps behind where the thermostat is installed could allow cooler air to affect readings. Either of these two situations could change the thermostat\u2019s internal temperature readings leading to inaccurate results.Settings go wonky! When other factors like failing batteries are a problem, then the settings can get messed up too. Decisions relating to the temperatures for when the heating should come on\/off or the AC, respectively, can mysteriously change due to other factors. So, don\u2019t get thrown off by that. Account for other possibilities that could be playing with your settings as if there\u2019s a ghost in the machine.   https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQVideo can\u2019t be loaded because JavaScript is disabled: Troubleshooting if a Thermostat is BAD: Explained! (https:\/\/www.youtube.com\/watch?v=81_gCF4mJtQ)Read Also: Complete RV Roof Guide Is it a Digital RV Thermostat Heat Only Model?If the RV or camper is new, or it\u2019s previously owned and the thermostat was replaced from the factory fitted model, you may believe you have a heat and cooling thermostat. However, you could be mistaken.It\u2019s an obvious yet easy mistake to make.Perhaps your motorhome has an RV thermostat heat-only version, but you\u2019re confused why you cannot get any cooling function to work (or you cannot find the option).Not every system includes cooling.You could add an AC unit and replace the RV thermostat with a digital heating and cooling model to manage the upgrade.How Do I Reset My RV Thermostat?The process to reset the RV thermostat if you believe it\u2019s become \u201cconfused,\u201d but the display panel is still functional, is to reset it.Resetting might be either a soft reset or a hard reset; the latter will likely clear any programmed settings such as the times to turn on\/off heating or cooling, whereas a soft reset usually doesn\u2019t lose this information.With RV digital thermostats, the correct procedure varies both between manufacturers and even between models in their range.The most frequent way to perform a reset is to use a dedicated reset button.This will then be held down for a fixed amount of time, typically around 4-6 seconds, to trigger the reset process (the duration may differ between thermostat models).Sometimes, holding the reset button down for a longer duration will trigger a hard reset instead.A power reset is a secondary process to try if the reset button isn\u2019t doing anything, you cannot find it or the model doesn\u2019t have one.For battery-powered thermostats, removing the batteries for a short time and then putting them back in can trigger a reset.Removing any internal fuse will also do it.The wire harness could also be disconnected, and this might work too (turn off the power completely first for safety). Failing all else, reaching the breaker panel and flipping the correct breaker to deactivate the RV thermostat for several minutes can work too.Also, bear in mind that whether you own a Dometic DuoTherm 4, a Dometic 3 button, or a Coleman model, they each have a product manual that will include detailed instructions on how to reset their thermostat.The manual will be available online for download.When the general suggestions above do not seem applicable to your RV thermostat model, access the product manual for the next steps.How Does an RV Thermostat Work?The RV thermostat is what allows you to turn different features of your HVAC system on or off as required.Wires come into the thermostat unit from the various systems, such as the furnace, AC, and so on.Thermostats have different levels of sophistication for their control systems.Also, many of the programmed settings are stored inside the circuit board. Should this begin to fail, it will need replacing.The front panel commonly incorporates an LCD digital display or basic control system.Depending on whether there are physical touch buttons or it\u2019s a touchscreen panel (less common), this provides an interface to control the HVAC systems.As such, the RV thermostat doesn\u2019t just read the ambient temperature level in the living quarters but provides control over the systems with it too.Closing ThoughtsWith RV thermostats, care must be taken to avoid drawing erroneous conclusions.A thermostat that\u2019s currently playing up could be something as simple as a dud battery, dust on the wires causing connections to be touch and go, or the circuit board might be failing.Methodical troubleshooting of the RV thermostat is required to rule out possible causes to reach the correct conclusion. Then you\u2019ll know what needs replacing to fix the problem.Related ArticlesRV RoofHow to Watch TV with a GeneratorShould I Run a Dehumidifier in My RV?How to Repair Delamination on RV"},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"How to Tell If RV Thermostat is Bad?","item":"https:\/\/livingpioneer.com\/how-to-tell-if-rv-thermostat-is-bad\/#breadcrumbitem"}]}]