Reset dometic thermostat

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.

The only option for these 3 button units is a “hard reset.”. Here are the recommended steps for a hard reset: Step 1: Turn off the Thermostat. Step 2: Remove the face cover gently to get inside the thermostat. Step 3: At the 3 wires in the upper left-hand corner. Remove the farther one to the left.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.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.Reset My Dometic 5 Button Thermostat? - Turn the thermostat switch off. - Press both the mode and zone buttons at the same time then turn the switch back to ON. - The letters FF should appear in the digital display and will remain there until you release both the zone and mode buttons. - Release the buttons when they do.The Dometic CT Single Zone Thermostat Control Kit can control your Dometic heating or cooling appliances. Read more. Sold in our dealer network Art nr: 9108853315. Features. Bluetooth enabled. Low profile design. Large LCD display. Singlular control. Available in Black or White. Specifications. General Logistics. SKU number. 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 46761 PROGRAMMING AND OPERATION. On/Off. To turn On the SZ LCD thermostat, press On/Off Mode button. To turn Off the SZ LCD ther-mostat press the On/Off Mode button and toggle through modes until On/Off green LED is on. LCD will go out while the green LED will remain on for approximately 15 seconds, then go out.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.

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...Dometic E4 Code Reset. One owner went to test his control panel and he removed the red wire. Everything seemed to be fine and after 30 minutes he connected the red wire, and the code was gone. ... However, there is a second E4 code and it is for the Dometic CCC 2 thermostat. It says the same thing except it adds that the dehumidifier …equate data or no functions occur, reset the Comfort Control Center to factory setting. When a reset proce-dure is done, all previous program memory is re-moved. The factory setting of 72°F for cooling mode and 68°F for heating modes are entered. To initiate a RESET, do the following in the order listed:The temperature of the thermostat can be changed from fahrenheit to celsius. Pressing the button again will return to normal mode. If you are using an older version of Windows, you will need to download and install the Windows 8.1 update. How do I reset my Dometic CFX? Reset to factory settings by using reset function on fridge.Dometic E4 Code Reset. One owner went to test his control panel and he removed the red wire. Everything seemed to be fine and after 30 minutes he connected the red wire, and the code was gone. ... However, there is a second E4 code and it is for the Dometic CCC 2 thermostat. It says the same thing except it adds that the dehumidifier … We have 1 Dometic 3314082.011 CCC 2-Wht manual available for free PDF download: Installation Instructions Manual Dometic 3314082.011 CCC 2-Wht Installation Instructions Manual (17 pages) Roof Top Unit Used With 3105007.XXX OR 3105935.XXX Return Air Grille, Electronic Control Kit, Thermostat, Optional Indoor Temperature Sensor, Air Conditioner ... 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 and reset Dometic Duo Therm Thermostat? There is a procedure through which the Dometic duo therm thermostat can be fixed in some cases.

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.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 system off for about ten minutes and then back on furnace setting.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.To reset a Dometic thermostat, begin by locating the thermostat control panel. Once found, look for a reset button or an option to set the thermostat back to its default settings. If there’s no dedicated reset button, you can try turning off the power to the thermostat, either by flipping the corresponding circuit breaker or unplugging it.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 buttons. 5. Press the ON/OFF button to exit system set up. With all the above steps to take when resetting a dometic thermostat, there are things you need to be aware of before you reset your thermostat.

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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 FluctuationsView and Download Dometic 3316420 Series operating instructions manual online. BLUETOOTH CAPACITIVE TOUCH THERMOSTAT. 3316420 Series thermostat pdf … This manual is also suitable for: View and Download Dometic 3314080.000 BLACK operating instructions manual online. COMFORT CONTROL CENTER 2 PROGRAMMABLE THERMOSTAT. 3314080.000 BLACK thermostat pdf manual download. Also for: 3314080.015 white. The only option for these 3 button units is a “hard reset.”. Here are the recommended steps for a hard reset: Step 1: Turn off the Thermostat. Step 2: Remove the face cover gently to get inside the thermostat. Step 3: At the 3 wires in the upper left-hand corner. Remove the farther one to the left.

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. Yes, this is possible to replace an RV thermostat but there are a few details you need to know about before you run out and buy a cheap replacement. First, the RV thermostat is designed to work on the 12 Volt RV electrical system. Most house and other thermostats are designed to work on the 24-volt system.Dometic E4 Code Reset. One owner went to test his control panel and he removed the red wire. Everything seemed to be fine and after 30 minutes he connected the red wire, and the code was gone. ... However, there is a second E4 code and it is for the Dometic CCC 2 thermostat. It says the same thing except it adds that the dehumidifier …dummy. Dometic 3316230.700 Control Kit/Relay Box Heat/Cool with Polar White CT Wall Thermostat. dummy. Gates Thermostat. dummy. MICRO-AIR EasyTouch Digital WiFi or Bluetooth Thermostat, Programmable & Reliable Replacement RV Dometic Thermostat & Outdoor RV Camping, RV Heat & AC, Air Conditioner, Heat, …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 ...This manual is also suitable for: View and Download Dometic 3314080.000 BLACK operating instructions manual online. COMFORT CONTROL CENTER 2 PROGRAMMABLE THERMOSTAT. 3314080.000 BLACK thermostat pdf manual download. Also for: 3314080.015 white.4 Easy Steps To Reset The Dometic WH-6GEA RV Water Heater. ... Thermostat Failure. A thermostat in your Dometic WH-6GEA is a part that measures and regulates the temperature. If the temperature of your water heater is too high, it won’t be able to function properly. A faulty thermostat won’t be able to regulate the temperature, and this ... How to reset your single zone domestic thermostat. Dometic Corporation 1120 North Main Street Elkhart, IN 46514 CANADA Dometic Corporation 46 Zatonski, Unit 3 Brantford, ON N3T 5L8 CANADA Service Center & Dealer Locations Please Visit: www.eDometic.com REVISION A Form No. 3316462.000 08/16 (French 3316463.000_A) ©2016 Dometic Corporation LaGrange, IN 46761 Capacitive Touch Thermostat Quick ... 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 ...want to reset? No Yes WiFi Are you sure want to reset? No Yes Bluetooth Battery protection WiFi DC V Set temp 11.8-8 °C WiFi ON OFF RESET WiFi ON OFF RESET WiFi ON OFF RESET WiFi ON OFF RESET l DC V 11.8-8 °C FACTORY RESET ++ 3 sec m DC V 11.7 DC V 11.7-8 °C n AB CFX3_OPM_APAC(en).book Seite 14 Mittwoch, 24. Juni …Single Zone CT Thermostat only - Black. The Dometic CT Single Zone Thermostat can control your Dometic heating or cooling appliances. Find a dealer. Sold in our dealer network Art nr: 9108853325.

Make sure the thermostat is in the OFF mode. • Simultaneously press the MODE and ZONE buttons. The LCD will display “IniT” and all available zones. • Release the MODEand ZONE buttons. Press the ON/OFF button to exit system set up

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.- Reset the thermostat Dometic thermostat. Check to see if it works. - Reset the Dometic power fuse. If this does not resolve the problem, proceed to the next step. - Switch off and on the main power circuit breakers. If those do not work, then you should call in a Dometic specialist to handle the repair and do the resetting for you. Some Final ...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 …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 …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.Make sure the CCC 2 thermostat is in the OFF condition. • Simultaneously press and hold the MODE and ZONE buttons. See page 3, Quick reference to control buttons. • The LCD will display “IniT” and all available zones. • Release the MODE and ZONE buttons. • Press the ON/OFF button to exit system set up.Resetting the Domestic Single Zone Thermostat. Resetting the Dometic single zone thermostat is a straightforward process that can help resolve any issues you may be experiencing. Follow these simple steps to reset the thermostat and restore its proper functionality: Ensure the power to the air conditioner is turned off.Warped door seals and clogged condensation drains are common problems with Dometic RV refrigerators. Other problems including faulty thermostats can occur. To determine the problem...Dometic a/c thermostat reset? When setting high temp, it stops at 32 degrees and goes as low as 13. When I first turned it on today it showed two dashes in place of the numbers. Connected to 50A service with no other issues. ... Anytime you need to use the thermostat, take the faceplate off, tap the leads with your finger, then put the cover ...

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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. 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. 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... Yes, this is possible to replace an RV thermostat but there are a few details you need to know about before you run out and buy a cheap replacement. First, the RV thermostat is designed to work on the 12 Volt RV electrical system. Most house and other thermostats are designed to work on the 24-volt system.System initialization is performed with the thermostat turned “off”. Press and hold the “mode” & “+” buttons until the display shows”- -“. Press the “mode” button once to exit the system initialization mode. Single Zone Diagnostic Mode Diagnostics shall be initiated with the thermostat turned “OFF”.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.The 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...Nov 28, 2023 · 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 Fluctuations 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. Description. The main purpose of the Dometic Comfort Control Center 2 Duo Therm thermostat is to regulate the temperature in the room where it is installed. To start operating the roof top AC/HP systems troubleshooting thermostat and select the correct operating modes, read diagnostic service manual, which contains 63 pages in English.M.O.C. #4831. The CCC II is prone to brain-fade. The quickest way to see if that is the issue is to reset it. To do a system reset: • Make sure the CCC 2 thermostat is in the OFF mode. • Simultaneously press the MODE and ZONE buttons. The LCD will display “IniT” and all available zones. • Release the MODE and ZONE buttons.Related Manuals for Dometic 3109228.001. ... Roof top unit used with 3105007.xxx or 3105935.xxx return air grille, electronic control kit, thermostat, optional indoor temperature sensor, air conditioner, ccc 2/lcd sz controls (17 pages) ... SYSTEM RESET a. Turn the ON/OFF switch to “OFF” position. b. Simultaneously depress and hold the MODE ... ….

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...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, …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.Aug 23, 2018 · Make sure the CCC 2 thermostat is in the OFF condition. • Simultaneously press and hold the MODE and ZONE buttons. See page 3, Quick reference to control buttons. • The LCD will display “IniT” and all available zones. • Release the MODE and ZONE buttons. • Press the ON/OFF button to exit system set up. 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...Q: Can I reset my Dometic 3 button thermostat myself? A: Yes, you can reset your Dometic 3 button thermostat yourself by following the steps outlined above. However, it is important to read your manufacturer’s manual and consult with a professional if you are unsure about any part of the reset process.How to reset your single zone domestic thermostat.To turn On the Single Zone LCD thermostat, press the On/Off Mode button. The LCD will be activated. To turn Off the Single Zone LCD thermostat press the On/Off Mode button and toggle through the modes until the On/Off green LED is on. The LCD will go out and the green LED will remain on for approximately 15 seconds, then go out. Programming ... Reset dometic thermostat, 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., Definitely a good value for the Dometic thermostat. Read more. Helpful. Report. rond. 1.0 out of 5 stars This seller is not Dometic but FCRVM & is a scam shipping defective product & refusing refunds. Reviewed in the United States on December 28, 2023. Verified Purchase., How to reset your single zone domestic thermostat., Follow these procedures to do a system reset on a Dometic Comfort Control thermostat: Ensure that the thermostat is set to the OFF position. Next, hit the MODE and ZONE buttons at the same time. The LCD will show “IniT” and each zone that is accessible. Release the buttons for ZONE and MODE., CCC 2 thermostat will require a system reset. For system reset procedure, see main heading, “System Reset Procedure” on page (20). Your Dometic CCC 2 thermostat has been pre-programmed. Review settings below and adjust the settings to your personal comfort level. Any time the CCC 2 is in an idle stage (not illuminated) you will need to …, Minards Lesiure World guides you on How to Operate your RV's Dometic Digital Thermostat. The basics are explained for running Heat/Cool/and Fan Modes in your..., 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., Model number 3109228.001 is a duo therm comfort control thermostat by Dometic. It is a fully controllable device that can set up to four climatic features with a user-friendly design that includes a touch control panel for functioning. It has a large enough LCD that reads out numbers and degrees easily., Description. The main purpose of the Dometic Comfort Control Center 2 Duo Therm thermostat is to regulate the temperature in the room where it is installed. To start operating the roof top AC/HP systems troubleshooting thermostat and select the correct operating modes, read diagnostic service manual, which contains 63 pages in English., 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 ..., 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 ..., Reset the thermostat: Perform a reset on your Dometic thermostat to see if it resolves the display issue. This can often be done by removing the thermostat from its mounting plate and disconnecting power for a few minutes. Replace the thermostat: If the display remains dim or blank after trying the above steps, it may indicate a faulty ..., May 2, 2023 · Resetting the Thermostat. If your Dometic thermostat is not working correctly, it may be due to a software glitch or other issue that can be resolved by resetting the device. To reset the thermostat, follow these steps: Turn off the power to your RV or camper’s HVAC system. Remove the thermostat’s cover to access the reset button. , Reset My Dometic 5 Button Thermostat? - Turn the thermostat switch off. - Press both the mode and zone buttons at the same time then turn the switch back to ON. - The letters FF should appear in the digital display and will remain there until you release both the zone and mode buttons. - Release the buttons when they do., The Dometic Multi-Zone Comfort Control Center Thermostat can control your Dometic heating and cooling appliances. Read more. $209.99. In Stock Art nr: 9108698985., the account password changes, you must also reset the password in the thermostat using the Bluetooth password reset button. Apps will not allow access to the thermostat from Bluetooth if the passwords do not match. Temperature Reading Adjustment This setting allows you to calibrate the Inside temperature reading with an offset. For, dummy. Dometic 3316230.700 Control Kit/Relay Box Heat/Cool with Polar White CT Wall Thermostat. dummy. Gates Thermostat. dummy. MICRO-AIR EasyTouch Digital WiFi or Bluetooth Thermostat, Programmable & Reliable Replacement RV Dometic Thermostat & Outdoor RV Camping, RV Heat & AC, Air Conditioner, Heat, …, Apr 16, 2023 ... In this video, we'll walk through the process of replacing the Dometic CT Single Zone thermostat in my 2020 Keystone Bullet 243BHS., When resetting doesn’t work. Resetting the 3-button thermostat is one way to cure many minor ills. But sometimes the problems go deeper than that and resetting just won’t work. That is the time you have to pull the manual out to see if they cover the problem in the troubleshooting section. The first place to look will be the thermostat itself., Reset the thermostat Dometic thermostat. Check to see if it works. Reset the Dometic power fuse. If this does not resolve the problem, proceed to the next step. Switch off and on the main power circuit breakers. If none of the above steps clear the error, you should have an AC specialist check on it. _____ MikenDebbie Aggie ‘77 in the sticks ..., RESET. To RESET (Re-Boot) the Dometic DuoTherm 4 button thermostat: Turn the thermostat ON. Touch any button to turn the Back Lights ON. Press and hold in the UP and DOWN Buttons. Press and Release MODE. Release the UP and DOWN Buttons. Press and Release MODE Again. The Back Lights will go out to signal success., We have a 5 button Dometic Duotherm Thermostat, 2 penguin 630516.321 heat pumps. In trying to narrow down why zone 2 isn't showing up on our thermostat, we have tried the following: 1. Sprayed cleaner on all ends of all phone like cables (comm cables) 2. Replaced all connectors on ends of all phone like cables 3. Measured voltage …, Related Manuals for Dometic 3109228.001. ... Roof top unit used with 3105007.xxx or 3105935.xxx return air grille, electronic control kit, thermostat, optional indoor temperature sensor, air conditioner, ccc 2/lcd sz controls (17 pages) ... SYSTEM RESET a. Turn the ON/OFF switch to “OFF” position. b. Simultaneously depress and hold the MODE ..., 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 4x4, Aug 18, 2020 ... ... thermostat, reset it and reset the breakers, getting an intermittent E1 error on the various AC units. The end result was that we got no AC ..., 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., 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 …, Dec 31, 2021 ... Did your Dometic CFX cooler start freezing everything even when it's set to an appropriate temperature? Then your thermistor probably needs ..., I have been working in this field for over 5 years and have a lot of experience with different AC units. I write here to help people solve their Air Conditioning problems and find the best solutions for their needs. If you are having any issues with your air conditioner or are thinking about buying a new one, be sure to check out my blog!, 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., 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., EASY TO INSTALL: The Dometic Air Conditioners 3316250.712 CT Single Zone Wall Thermostat is easy to install, with a simple wiring process that can be completed quickly and easily. SLEEK AND DURABLE: The thermostat is designed to be both sleek and durable, with a stylish black finish and a rugged construction that is built to last., Reset the thermostat: Perform a reset on your Dometic thermostat to see if it resolves the display issue. This can often be done by removing the thermostat from its mounting plate and disconnecting power for a few minutes. Replace the thermostat: If the display remains dim or blank after trying the above steps, it may indicate a faulty ...