Reset dometic thermostat - May 5, 2023 · Here are step-by-step instructions on how to hard reset the thermostat on your Dometic RV air conditioner to ensure that it operates at the proper temperature. The temperature set-point may be changed by pressing the “+” or “” button. The LCD display shows the temperature set-point in two digits.

 
Mar 3, 2021 · If the gap is larger then you should use the reset system option to try to get the thermostat to operate correctly. If the problem doesn’t get fixed contact your local repairman. Or you can go to the owner’s manual and see if the problem is covered within its pages. . Song lyrics for a prank

My rear thermostat quit when there was snow on the roof. Installed a new thermostat after trying to reset the old one. Nothing worked. 15 degrees out, snow on the roof———. ———. Just installed a new wire from blue wires on furnace and a mechanical thermostat inside for the rest of the winter.How Do I Reset My RV Thermostat? Photo by Camping World. ... This Dometic analog thermostat is a direct replacement for the Duo-Therm 3106995.032 Thermostat. It works to control your air conditioner and furnace but must be used in partnership with a 3107541.009 Control Relay.Resetting a Dometic thermostat is a common troubleshooting method when facing issues with temperature control. Follow these step-by-step instructions to reset your thermostat. First, locate the “Mode” and “Zone” buttons on your thermostat. Press and hold both buttons simultaneously for about 5 seconds.May 5, 2023 · How to reset your Dometic thermostat is as follows: Using the breaker box, turn off the electricity to your Dometic air conditioner. You may do this by detaching the appliance from the socket or by turning off the main power switch in your electrical service panel. system initialization will need to be performed by the installer after the system is installed. Make sure the Single Zone LCD thermostat is in the Off condi-tion. See page 4, “Quick Reference To Control Buttons”. Press the “+” button and, while holding it, also press and hold the On/Off Mode button for three seconds. Summary of Contents for Dometic 3316420 Series. Page 1 Service Center & Form No. 3316468.000 10/16 SERVICE OFFICE Dometic Corporation Dealer Locations (French 3316469.000_B) Dometic Corporation 46 Zatonski, Unit 3 Please Visit: ©2016 Dometic Corporation 1120 North Main Street Brantford, ON N3T 5L8 www.eDometic.com LaGrange, IN 46761 Elkhart ... Join Date: Nov 2015. Posts: 26,898. 'E1' loss of communications. System Reset. • Make sure the CCC 2 thermostat is in the OFF mode. • Simultaneously press the ZONE and MODE buttons. The LCD will display “IniT” and all available zones. • Release the ZONE and MODE buttons. • Press the OFF button.2. Simultaneously Depress and hold the MODE and ZONE push-buttons while turning the ON/OFF switch to "ON". FF should appear in the LCD display until the MODE and ZONE push-buttons are released. 3. When a dip switch is turned on or off after initial configuration, a system reset will need to be done before the Comfort Control …Dometic Corporation 46 Zatonski, Unit 3 Brantford, ON N3T 5L8 CANADA Service Center Dealer Locations Please Visit www.eDometic.com CAPACITIVE TOUCH THERMOSTAT MODEL COOL/FURNACE 3316410.XXX COOL/FURNACE/HEAT STRIP COOL/FURNACE/HEAT PUMP REVISION B Form No. 3316464.000 08/16 (French 3316465.000_B) ©2016 Dometic Corporation LaGrange, IN 46761How to reset your single zone domestic thermostat.Dometic AC. Thermostat set to cool to 70 degrees then thermostat resets itself to 32 degrees. Found a you tube where it showed moving a single wire (white/yellow) that is not connected to anything. As I move this wire around thermostat goes back to to 70 and AC cools again. Unit may run for days then this happens again.system initialization will need to be performed by the installer after the system is installed. Make sure the Single Zone LCD thermostat is in the Off condi-tion. See page 4, “Quick Reference To Control Buttons”. Press the “+” button and, while holding it, also press and hold the On/Off Mode button for three seconds.This may plug the unit evaporator coil with dirt and substantially degrade the performance of the unit. To reset the fan run time and clear the filter icon, hold the INSIDE and OUTSIDE buttons for three seconds. This will clear the fan run time for the current zone selected. Dometic CCC 2 thermostat: Clean the CCC 2 thermostat with a moist soft ...1. Replace Internal Vent Fans. A ventilation fan is crucial in temperature maintenance in an RV because it exhausts hot air. Vent fans can easily be damaged because mostly it’s …Keeping comfortable while traveling in your luxury sprinter van can often be a challenge due to rapidly changing temperatures during travel. Midwest Automoti...I have attempted to reset the thermostat per the user guide we received when bought the unit. Mechanic's Assistant: ... We are the 2nd owner of a 28' Enclosed Trailer with a Dometic ductlless roof air (and supposedly heat strip). It has a Dometic Digital Thermostat with 10 buttons (On/Off, Time, ...Apr 22, 2022 ... Our Dometic RV Furnace Stopped Working! Pilot Light Not Igniting! (Full ... Dometic RV Thermostat Basics. John Marucci•155K views · 16:02. Go to ...Jan 27, 2023 · - The thermostat light will go out. - The MODE will read OFF. If it does not, repeat the above steps. - Test the system to check whether the reset has worked. If these instructions do not do it for you, check your manual. It should have the right instructions for your model of the Dometic thermostat. What To do If The Thermostat Does Not Turn On John Marucci. 51.7K subscribers. Subscribed. 470. 27K views 1 year ago. In this video, we'll walk through the process of replacing the Dometic CT Single Zone …Accessing the Schedule Menu: Navigate to the scheduling or programming menu on the thermostat’s display. This may involve pressing the menu button and selecting the scheduling option. Setting Daily Programs: Define temperature profiles for different times of the day, such as morning, daytime, evening, and night.The thermostat is a Dometic comfort control center 2 model 3314080.000. The remote sensor has always read erratic on the inside temp. It will show 55 degrees in 90 plus temps. The reason I have put up with it for so long is sometimes it reads right , but after we got in from this last trip it has read in the 55 degree range.If you’re using a Dometic camper AC unit, the reset process may vary slightly from the standard procedure. Here’s how you can reset your Dometic camper AC unit: Locate the thermostat control panel and turn off the AC unit. Find the fuse box and open the door. Locate the 12-volt DC circuit breaker labeled “air conditioner” and switch it off.That should bring your thermostat to factory defaults settings. Read also: Dometic thermostat E1 code. To reset a dometic thermostat with multi zones: Make sure the thermostat is in the OFF mode. 2. Simultaneously press and hold the MODE and ZONE buttons. 3. The LCD will display “IniT” and all available zones. 4. Release the MODE and ZONE ...Dometic AC. Thermostat set to cool to 70 degrees then thermostat resets itself to 32 degrees. Found a you tube where it showed moving a single wire (white/yellow) that is not connected to anything. As I move this wire around thermostat goes back to to 70 and AC cools again. Unit may run for days then this happens again.If you own an RV, you know how important it is to have all the necessary parts in good working condition. One of the most well-known brands in the RV industry is Dometic, known for...This was a discussion about troubleshooting and resetting the Dometic duo therm thermostat in an RV with easy steps. We discussed its easy fixes for replacement as well as for improving it. FAQ How to fix …Page 13: Service. For Service Center SERVICE OFFICE Dometic, LLC Assistance Call: Dometic, LLC 46 Zatonski, Unit 3 800-544-4881 2320 Industrial Parkway Brantford, ON N3T 5L8 Elkhart, IN 46516 CANADA 574-294-2511 519-720-9578 REVISION Form No. 3313327.037 10/10 3313327.037 (French 3313345.039) ©2010 Dometic, LLC LaGrange, IN 46761...The E4 code has nothing to do with the Oasis unit, but with the heat pump/AC unit located on the rear roof of your coach. The "smart" thermostat is telling you that the Outdoor Temp sensor is open or bad (i.e. out of range). If you are electrically trained, this can be measure using a digital volt meter.Dometic Comfort Control Center 2 Diagnostic Service Manual. Language: English. Pages: 63. List of available manuals, guides and instructions for Dometic Comfort Control Center 2 multi-zone air conditioner & heat pump CCC2 thermostat.Digital Thermostat Guide. Dometic's digital thermostat (officially the "Single Zone LCD Thermostat") found in Flagstaff's T-Series campers is easy to use once you get the hang of its operation. Since most people just want to know how the fan setting works, we'll start there and then back-track through the rest of its operation. The "Fan" Setting.The reset system won’t work if you have a blown fuse, burned wiring, loose wiring, and other mechanical failures that impede the thermostat’s operation. Duo-Therm Comfort Control Reset When you are going to do this action, remember that all previous program memory will be erased and the control will reset to factory settings of 72 degrees F ...How do i reset my dometic single zone thermostat? To reset your Dometic Single Zone thermostat, you can follow these steps: 1. Turn off the thermostat: Locate the …Aug 18, 2023 · If you get the Dometic thermostat code E7, this means that the power supply to your AC unit has been lost to every power module that’s connected to the system. The reason for the loss of power is what needs to be investigated further. The power failure may be the result of a blown fuse or tripped circuit breaker. Locked Luxpro PSP511Ca thermostats indicated by the presence of ‘Hold’ on the temperature screen may be unlocked by pressing and releasing the hold button, rotating the dial or cha...Once all this is done, make sure the power switch is turned to the on position. If it isn’t, the furnace will not light. This switch can be found inside the door on the door models and the outside of the furnace in non-door models. Then set the thermostat temperature to the desired level and your furnace should light.How do i reset my dometic single zone thermostat? To reset your Dometic Single Zone thermostat, you can follow these steps: 1. Turn off the thermostat: Locate the …The Dometic Comfort Control Center 2 thermostat can con-trol up to four units (zones). Press the UP or DOWN buttons to increase or decrease the room air tem-perature (hereinafter referred to as the set-point). The setpoint is the desired inside room air temperature. Press the FAN button to select the fan speed. With power to the Passport control disconnected, press and hold the Down button while reconnecting the AC power. When the display indicates “888” and all LEDs are lit (Power-On Reset), release the Power button. While the display shows “tSt” the following commands cycle continuously: “Hr” displays for one second. To turn the CT thermostat off, continue pressing the / Mode button until “Off” appears on the LCD. After 15 seconds of illumination, the LCD turns off. Dependent upon the systems installed, the Mode options you will scroll through are Off, Fan, Cool, Furnace, Heat Pump, and Heat Strip. Switching Between oF and oC. To turn ON the CCC 2 thermostat when the back light is off, first press any button to wake up the CCC 2 thermostat. Then press and release the ON/OFF button. Press the MODE button to cycle through the mode options. A mode is an operation that can be performed by the unit and is controlled by the Dometic CCC thermostat. First, you must reset the Dometic thermostat by following the steps above. If it solves, then it was a bug. If not, then there is physical damage. How to reset your single zone domestic thermostat.With power to the Passport control disconnected, press and hold the Down button while reconnecting the AC power. When the display indicates “888” and all LEDs are lit (Power-On Reset), release the Power button. While the display shows “tSt” the following commands cycle continuously: “Hr” displays for one second.To reset a Dometic thermostat, locate the reset button on the unit and press it. Dometic thermostats can be easily reset by locating the reset button on the unit and pressing it. This action will restore the thermostat to its default settings and clear any previous programming or errors.Step 04: After restarting the power supply, turn your Dometic thermostat back on. This reset procedure should help fix the issue and prevent it from occurring again. Restarting your device is the most effective way to address this issue. The good news is that you don’t require the services of a professional to do so with your Dometic thermostat.First, you must reset the Dometic thermostat by following the steps above. If it solves, then it was a bug. If not, then there is physical damage.To reset your Dometic RV air conditioner, follow these steps:Turn off the air conditioner at the thermostat or control panel.Locate the circuit breaker panel...2. Simultaneously Depress and hold the MODE and ZONE push-buttons while turning the ON/OFF switch to "ON". FF should appear in the LCD display until the MODE and ZONE push-buttons are released. 3. When a dip switch is turned on or off after initial configuration, a system reset will need to be done before the Comfort Control …If you own a Dometic RV, it’s essential to understand the importance of regularly replacing its parts. The longevity and performance of your recreational vehicle heavily depend on ...Aug 18, 2023 · If you get the Dometic thermostat code E7, this means that the power supply to your AC unit has been lost to every power module that’s connected to the system. The reason for the loss of power is what needs to be investigated further. The power failure may be the result of a blown fuse or tripped circuit breaker. If you have blown fuses, burnt wire, loose wiring, or other mechanical issues that prevent the thermostat from operating, the reset mechanism won’t function. Reset the Duo-Therm Comfort Control The control will reset to its factory settings of 72 degrees Fahrenheit for cold and 68 degrees Fahrenheit for hot when you do this step, therefore ...First, you must reset the Dometic thermostat by following the steps above. If it solves, then it was a bug. If not, then there is physical damage. Is Dometic Thermostats and Furnace Thermostat The Same Thing On RV? No. The furnace thermostat is for maintaining the furnace temperature, whereas the Dometic thermostat is for controlling the RVs ...First, you must reset the Dometic thermostat by following the steps above. If it solves, then it was a bug. If not, then there is physical damage.The exact process of resetting your thermostat depends on the manufacturer, but a reset generally requires the following three steps: Turn off the thermostat. Wait for the manufacturer’s recommended time period. ... This Dometic thermostat is best for smaller campers with a single cooling zone. It’s compatible with …To reset your Dometic RV air conditioner, follow these steps:Turn off the air conditioner at the thermostat or control panel.Locate the circuit breaker panel...In this video, we'll walk through the process of replacing the Dometic CT Single Zone thermostat in my 2020 Keystone Bullet 243BHS. While recently on the roa...The reset system won’t work if you have a blown fuse, burned wiring, loose wiring, and other mechanical failures that impede the thermostat’s operation. Duo-Therm Comfort Control Reset When you are going to do this action, remember that all previous program memory will be erased and the control will reset to factory settings of 72 degrees F ...Posts: 311. Dometic Thermostat E5 Code. I am camping at Mesa Verde National Park. This evening late, the Heat Pump (15,000) seemed to stall and the thermostat was flashing an E5 Code. Outside temperature is 45 degrees, inside set on 70. Has run perfectly, then this happened. The E5 flashed in all settings (heat pump, …To start pairing with the selected CT thermostat, press Pair With Selected Thermostat. Press the / Mode button on the CT thermostat until OFF mode is selected. A 2-digit PIN displays. shows a 2-digit pin of “21” as an example. Enter this 2-digit code twice in the app and press Enter. FIG. 9 shows “2121”.Try resetting the thermostat. For a single zone Dometic RV thermostat, simply press the “+” button and the “On/Off Mode” button at the same time until you see two dashes. Then turn the thermostat on and back off. See your owner’s manual for factory reset instructions for other Dometic thermostat models. Temperature FluctuationsThe Dometic company has been in business since 1968, when it started as Electrolux Leisure Appliances. If you need to know how to use your Dometic appliance, you can find Dometic m...How to Reset a Dometic (CCC2) Thermostat. If you’ve been able to address your Dometic thermostat’s E7 code successfully, you may need to reset the thermostat before resuming normal use. There are a couple of different ways to do this. If the first isn’t successful, move on to the second.How do i reset my dometic single zone thermostat? To reset your Dometic Single Zone thermostat, you can follow these steps: 1. Turn off the thermostat: Locate the …But I'd suspect the "control box lockout problem" that has been an issue for a lot of owners of 2019/2020 trailers with In-Command and Dometic a/c's. John 2015 F250 6.7l 4x4Gently pull each wire to ensure the set screws are properly tightened to prevent movement. Reattach the thermostat housing to the wall and reinstall the faceplate. Replace the thermostat’s fuse in your RV’s electrical panel. The thermostat’s display should immediately light up. Test the new thermostat.Sometimes just unplugging the RJ-11 cables and then plugging them back in again will solve this. Check them for moisture. This is a problem area for this thermostat system and I see this about once a day here. The cable looks like a phone cable. Small plastic clip holds it in.Dometic thermostat won’t turn on. In case your thermostat won’t turn on here is how to solve the problem. Ensure the main power is switched on; switched on the thermostat; Reset the thermostat circuit breaker; If the thermostat comes on but does not provide temperature control, switch it to a lower temperature than its operating temperasystem initialization will need to be performed by the installer after the system is installed. Make sure the Single Zone LCD thermostat is in the Off condi-tion. See page 4, “Quick Reference To Control Buttons”. Press the “+” button and, while holding it, also press and hold the On/Off Mode button for three seconds.When it comes to showering, having control over the water temperature is essential for a comfortable and enjoyable experience. One way to achieve this control is by using a thermos...Reset the thermostat. Opened the A/C from the top. ... We are the 2nd owner of a 28' Enclosed Trailer with a Dometic ductlless roof air (and supposedly heat strip). It has a Dometic Digital Thermostat with 10 buttons (On/Off, Time, Clock, Zone, Mode, ...To turn the CT thermostat off, continue pressing the / Mode button until “Off” appears on the LCD. After 15 seconds of illumination, the LCD turns off. Dependent upon the systems installed, the Mode options you will scroll through are Off, Fan, Cool, Furnace, Heat Pump, and Heat Strip. Switching Between oF and oC.Oct 9, 2023 · Access the Thermostat’s Menu: Depending on the model of your Dometic thermostat, you may need to access its menu or settings. This is typically done by pressing and holding a specific button or a combination of buttons. Initiate the Reset: Look for a “Reset” or “Factory Reset” option in the thermostat menu. system initialization will need to be performed by the installer after the system is installed. Make sure the Single Zone LCD thermostat is in the Off condi-tion. See page 4, “Quick Reference To Control Buttons”. Press the “+” button and, while holding it, also press and hold the On/Off Mode button for three seconds.How can you reset a Dometic thermostat? For a single-zone Dometic RV thermostat reset, simultaneously press and hold the ‘On/Off Mode’ and temperature up button (‘+’) for approximately 3 seconds until the’mode’ button displays a green light. Step 1: Press and hold the mode and temperature-up buttons together.Turn off the air conditioner: Press the power button on the control panel to turn off the air conditioner unit. Wait for a few seconds for the unit to completely shut down. Disconnect from power source: Once the air conditioner is turned off, disconnect the unit from its power source.Oct 9, 2023 · Access the Thermostat’s Menu: Depending on the model of your Dometic thermostat, you may need to access its menu or settings. This is typically done by pressing and holding a specific button or a combination of buttons. Initiate the Reset: Look for a “Reset” or “Factory Reset” option in the thermostat menu. To reset a Dometic RV thermostat, follow these steps: 1) Ensure the thermostat is unresponsive or not working properly. 2) Check for dead batteries and replace if necessary. 3) If the thermostat is still unresponsive, it may need to be replaced. First, you must reset the Dometic thermostat by following the steps above. If it solves, then it was a bug. If not, then there is physical damage. Posts: 311. Dometic Thermostat E5 Code. I am camping at Mesa Verde National Park. This evening late, the Heat Pump (15,000) seemed to stall and the thermostat was flashing an E5 Code. Outside temperature is 45 degrees, inside set on 70. Has run perfectly, then this happened. The E5 flashed in all settings (heat pump, furnace, AC) I turned the ...It is necessary to configure the CT thermostat model 3316410 for cool, furnace, heat strip, heat pump before starting its work. This will further ensure continuous and correct operation of the Dometic Capacitive Touch. Study the operating instructions, which consists of 11 pages in English. Operating instructions for Dometic Capacitive Touch CT ...3. Reset Your Thermostat By This Method To Stop Troubleshooting. If you are experiencing any issues with your Dometic Duo Therm RV air conditioners, one of the first steps you should take is to reset the thermostat. This can help resolve configuration errors, allowing the unit to work properly again.Posts: 311. Dometic Thermostat E5 Code. I am camping at Mesa Verde National Park. This evening late, the Heat Pump (15,000) seemed to stall and the thermostat was flashing an E5 Code. Outside temperature is 45 degrees, inside set on 70. Has run perfectly, then this happened. The E5 flashed in all settings (heat pump, …Turn off the thermostat: Locate the thermostat on your Dometic unit and ensure it is powered off. You can do this by pressing the "On/Off" button or adjusting the temperature settings to the lowest setting. 2. Remove the thermostat from its base: Some Dometic Single Zone thermostats can be easily removed from their base by pulling them straight ...This video is a demonstration on how to operate your RV’s Dometic Single Zone LCD Thermostat. It’s easy once you know how it works and this video will expla...You should re-program the Dometic thermostat immediately after resetting it. That should help its longevity and keep it working. That should help its longevity and keep it working. What you do not want taking place is for the thermostat to default to the wrong setting.Are you tired of constantly adjusting the temperature in your home? Do you want a smarter, more energy-efficient way to control your heating and cooling systems? Look no further th... Page 13: Service. For Service Center SERVICE OFFICE Dometic, LLC Assistance Call: Dometic, LLC 46 Zatonski, Unit 3 800-544-4881 2320 Industrial Parkway Brantford, ON N3T 5L8 Elkhart, IN 46516 CANADA 574-294-2511 519-720-9578 REVISION Form No. 3313327.037 10/10 3313327.037 (French 3313345.039) ©2010 Dometic, LLC LaGrange, IN 46761...

View and Download Dometic 3316420 Series operating instructions manual online. BLUETOOTH CAPACITIVE TOUCH THERMOSTAT. 3316420 Series thermostat pdf …. Sams club meatballs

reset dometic thermostat

The Dometic Comfort Control Center 2 thermostat can con-trol up to four units (zones). Press the UP or DOWN buttons to increase or decrease the room air tem-perature (hereinafter referred to as the set-point). The setpoint is the desired inside room air temperature. Press the FAN button to select the fan speed.Summary of Contents for Dometic 3316420 Series. Page 1 Service Center & Form No. 3316468.000 10/16 SERVICE OFFICE Dometic Corporation Dealer Locations (French 3316469.000_B) Dometic Corporation 46 Zatonski, Unit 3 Please Visit: ©2016 Dometic Corporation 1120 North Main Street Brantford, ON N3T 5L8 www.eDometic.com …2. Simultaneously Depress and hold the MODE and ZONE push-buttons while turning the ON/OFF switch to "ON". FF should appear in the LCD display until the MODE and ZONE push-buttons are released. 3. When a dip switch is turned on or off after initial configuration, a system reset will need to be done before the Comfort Control …Jul 5, 2021 ... Can't figure out why your AC & Furnace are running at the same time? Here you go.... Got a problem? Comment down below. This video go made ...To reset a Dometic Duo Therm thermostat, press the reset button for approximately 5 seconds until you hear a click. This will reset all of the settings back to factory defaults. Do Thermostats Have A Reset Button? Yes, most thermostats have a reset button that can be used to reset the thermostat to its default settings. Depending on the make ...Access the Thermostat’s Menu: Depending on the model of your Dometic thermostat, you may need to access its menu or settings. This is typically done by pressing and holding a specific button or a combination of buttons. Initiate the Reset: Look for a “Reset” or “Factory Reset” option in the thermostat menu.Save more than $200 by repairing your Dometic Duo Therm Comfort Control 310643.007 Thermostat. I show you how to disassemble and clean the soft touch button...12. 13. 14. 15. 16. 17. 18. 19. 20. page of 20. Go. Table of Contents. Bookmarks. Advertisement. Quick Links. 1 System Configuration & Initialization. 2 Zone Selection. 3 …Apr 5, 2021 ... ... thermostat to get the furnace and fan running. Another is to check the battery condition with a voltmeter; the furnace won't start if the ...Smart thermostats have been around for a while now. Google Nest is back with a new smart thermostat with new features. Expert Advice On Improving Your Home Videos Latest View All G...thank you try this reset, and let me know if it works, if not we'll go from there :, first of all try to reset the thermostat do this:.RESET a. Turn the ON/OFF switch to "OFF" position. b. Simultaneously depress and hold the MODE and ZONE push-buttons while turning the ON/OFF switch to "ON".A: You should only reset your Dometic RV thermostat if it is not functioning properly. If it is functioning normally, there is no need to reset it. Q: Can I reset my Dometic RV thermostat on my own, or do I need a technician? A: You can reset your Dometic RV thermostat on your own using the steps outlined in this guide.With power to the Passport control disconnected, press and hold the Down button while reconnecting the AC power. When the display indicates “888” and all LEDs are lit (Power-On Reset), release the Power button. While the display shows “tSt” the following commands cycle continuously: “Hr” displays for one second.Position the thermostat so that it is off. For five minutes, remove the fuse. Reconnect the fuse, then wait five minutes. Thermostat Use the 01 code to reset. Switch to Off, remove fuse for five minutes, put fuse in, wait another five minutes, and then switch to Heat. Battery-powered flashlights can be required.Dometic Comfort Air Conditioner Thermostat 3314082.011 This thermostat gives you control of your rooftop air conditioners, single and dual basement air, heat pump systems, gas furnaces and electric heat strips. ... Dometic Thermostat Is Perfect Controller Related Items. Item In Cart. Dometic Brisk II 13,500 BTU Rooftop RV Air Conditioner ...Well-known member. Jul 11, 2018. #1. This morning tried to adjust the thermostat up to 78 and it changed to 32 and will not go up. It will go down to 13 and back up to 32 but not higher. It is a Dometic Single Zone LCD thermostat. I looked at the owners manuals but nothing about this problem. Thanks for any help.Do this turn it OFF. Then HOLD DOWN BOTH the zone and mode buttons AND while you are holding them BOTH down you turn it back on. "FF" should appear on the control and then you let up BOTH buttons and it should work again. IF NOT, it may be bad OR the cable may not be getting the signal to the control box..

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