Dometic CRX 110E Manual: Comprehensive Guide
This manual provides detailed instructions for the Dometic CRX 110E, covering installation, operation, maintenance, and troubleshooting for optimal performance and longevity.
Welcome to the comprehensive guide for your Dometic CRX 110E! This portable refrigerator/freezer is engineered for reliable cooling wherever your adventures take you. Whether you’re a camper, traveler, or simply seeking convenient temperature control, the CRX 110E delivers exceptional performance.
This manual serves as your primary resource, detailing everything from initial setup and operation to advanced features and troubleshooting. We’ll cover essential aspects like electrical connections, temperature settings, and routine maintenance. Understanding these guidelines will ensure efficient operation and extend the lifespan of your unit.
Please read this manual thoroughly before using the CRX 110E to maximize its benefits and ensure safe operation. Familiarize yourself with the safety precautions and warranty information provided within.
What is the Dometic CRX 110E? ⎻ Overview & Applications
The Dometic CRX 110E is a highly efficient, compressor-powered portable refrigerator/freezer designed for 12/24V DC and 100-240V AC operation. It offers versatile cooling solutions, functioning as a fridge down to 32°F (0°C) and a freezer down to -4°F (-20°C).
Its applications are incredibly diverse. Ideal for road trips, camping, boating, RV travel, and even professional use, it keeps food and beverages fresh or frozen on the go. The CRX 110E is also valuable for medical transport, preserving temperature-sensitive items.
Its robust construction and intelligent design make it a reliable companion for various environments. The digital temperature control and energy-saving mode enhance usability and efficiency, making it a top choice for portable cooling needs.
Key Features and Specifications
The Dometic CRX 110E boasts several key features, including a robust compressor cooling unit, digital temperature control, and a dynamic cooling mode for rapid temperature reduction. Its interior features a convenient LED light and a removable wire basket for organized storage.
Specifications include a gross capacity of 105 liters (3.7 cu ft), dimensions of approximately 25.6″ x 19.7″ x 29.5″, and a weight of around 57.3 lbs. Power consumption is rated at 45W on DC and 65W on AC.
The unit operates on 12/24V DC and 100-240V AC, offering flexibility in power sources. It also includes low voltage protection to safeguard the battery and features a three-sided sealing system for enhanced efficiency.

Installation & Setup
Proper installation ensures optimal performance. This section details unboxing, mounting considerations, electrical connections, and initial system testing for the CRX 110E.
Unboxing and Component Check
Carefully unpack the Dometic CRX 110E and verify all components are present. The package should include the main CRX 110E unit, the control panel (if applicable), mounting brackets, a wiring harness, and this comprehensive manual. Inspect each item for any signs of shipping damage, such as dents, cracks, or loose parts.
Compare the received components against the parts list detailed within this manual. If any items are missing or damaged, immediately contact Dometic customer support or your point of purchase for replacement. Do not attempt to operate the unit with missing or damaged components. Retain the original packaging for potential returns or warranty claims. A thorough component check before installation prevents issues later.
Mounting the CRX 110E ⎻ Location Considerations
Proper mounting is crucial for optimal performance. Select a location that provides adequate ventilation, avoiding direct sunlight and heat sources. Ensure sufficient space around the unit for airflow – at least 6 inches on all sides is recommended. The mounting surface must be structurally sound and capable of supporting the CRX 110E’s weight when fully loaded.

Avoid mounting near flammable materials or areas exposed to excessive moisture. Consider accessibility for future maintenance and filter replacement. Utilize the provided mounting brackets and secure them firmly to the chosen surface using appropriate hardware (not always included). Double-check the levelness of the unit post-installation to ensure proper drainage and efficient operation.
Electrical Connections ⎻ Wiring Diagram

Before making any electrical connections, disconnect the power supply! The CRX 110E typically requires a dedicated 12/24V DC power source. Refer to the detailed wiring diagram located on page 15 for specific wire colors and connections. Ensure the wiring gauge is appropriate for the current draw to prevent overheating and potential fire hazards.
A properly fused circuit is essential for protection. Connect the positive (+) wire to the positive terminal and the negative (-) wire to the negative terminal, observing correct polarity. Incorrect wiring can damage the unit. Grounding may be required depending on the installation environment; consult a qualified electrician if unsure. Verify all connections are secure before restoring power.
Initial System Setup and Testing
After completing electrical connections, proceed with initial system setup. Power on the CRX 110E using the control panel. Verify the unit displays a power-on indication. Set the desired temperature to a moderate level, around 22°C (72°F), and observe if the cooling system initiates. Listen for the compressor and fan operation.
Check airflow from the vents to confirm proper circulation. Monitor the temperature over 30 minutes to ensure it reaches the setpoint. If the unit fails to cool, re-check all wiring connections and the power supply. Consult the troubleshooting section if issues persist. Proper initial testing ensures optimal performance;

Operation & Control
This section details how to effectively operate the Dometic CRX 110E, including control panel functions, temperature adjustments, and fan speed settings for user comfort.
Understanding the Control Panel
The Dometic CRX 110E control panel is the central hub for managing your cooling system. It typically features intuitive buttons or a digital display for easy operation. Key elements include the power button, used to turn the unit on and off, and temperature adjustment controls, allowing you to set your desired cooling level.
Fan speed settings are also readily accessible, offering options for quiet operation or maximum airflow. Some models may include a mode selector, enabling you to choose between cooling, heating (if equipped), or automatic operation. Indicator lights provide visual feedback on the system’s status, such as power on, cooling mode, and any error conditions. Familiarizing yourself with these controls ensures optimal performance and efficient energy usage. Refer to the detailed diagrams within this manual for specific button locations and functions related to your CRX 110E model.
Powering On/Off and Basic Operation
To power on the Dometic CRX 110E, locate the main power button on the control panel and press it firmly. A confirmation light will illuminate, indicating the unit is receiving power. For initial operation, ensure the desired temperature is set using the temperature adjustment controls. The unit will automatically begin cooling to the selected temperature.
To power off, press the power button again. The confirmation light will extinguish. Basic operation involves setting the temperature and fan speed to achieve comfortable cooling. The CRX 110E is designed for straightforward use; however, always refer to the control panel section for detailed explanations of each function. Regularly check the unit’s operation to ensure consistent performance and address any potential issues promptly.
Temperature Control Settings
The Dometic CRX 110E offers precise temperature control via the digital control panel. Users can adjust the desired temperature using the ‘+’ and ‘-’ buttons, displayed in Celsius or Fahrenheit, depending on the system setting; The temperature range typically spans from 16°C to 30°C (61°F to 86°F), allowing for customized comfort levels.

For optimal efficiency, it’s recommended to set the temperature a few degrees higher than initially desired. The unit will automatically maintain the set temperature, cycling on and off as needed. Avoid extreme temperature settings, as this can strain the compressor and reduce the unit’s lifespan. Regularly monitor the temperature to ensure it aligns with your comfort preferences and energy-saving goals.
Fan Speed Adjustment
The Dometic CRX 110E features multiple fan speed settings, controllable through the unit’s control panel. Typically, there are three options: Low, Medium, and High, each influencing airflow and noise levels. Lower speeds conserve energy and minimize sound, ideal for quiet environments or nighttime use. Higher speeds provide rapid cooling and improved air circulation, suitable for quickly adjusting the temperature in a space.
Experiment with different fan speeds to find the optimal balance between comfort and energy efficiency. Auto mode automatically adjusts fan speed based on the temperature difference, providing convenient operation. Regularly cleaning the fan blades ensures optimal performance and prevents dust buildup, maintaining consistent airflow and reducing noise.

Maintenance & Troubleshooting
Regular upkeep ensures peak performance. This section details cleaning, filter changes, common issue diagnosis, and cooling performance checks for your Dometic CRX 110E.
Regular Cleaning Procedures
Maintaining a clean Dometic CRX 110E is crucial for efficient operation and longevity. Begin by disconnecting the unit from the power source before any cleaning. The exterior surfaces can be wiped down with a damp, soft cloth and mild detergent. Avoid abrasive cleaners, as they can damage the finish.
Pay particular attention to the air intake and exhaust vents, ensuring they are free from dust and debris. These can be gently vacuumed. For interior components, consult the detailed diagrams in the manual for safe access and cleaning instructions. Regularly inspect and clean the condenser coils, as dust buildup significantly reduces cooling efficiency. Remember to thoroughly dry all components before reassembling and reconnecting the power.
Consistent cleaning prevents mold growth and ensures optimal air quality within the cooled space.
Filter Replacement ⎻ Types & Schedule
The Dometic CRX 110E utilizes air filters to maintain air quality and cooling efficiency. Typically, these are either washable foam filters or disposable particulate filters – consult your specific model’s documentation to confirm the type. Replacement frequency depends heavily on usage and environmental conditions.
For moderate use, replacing disposable filters every 3-6 months is recommended. Washable filters should be cleaned monthly with mild soap and water, ensuring they are completely dry before reinstallation. If the unit operates in dusty environments, more frequent filter checks and replacements are necessary. A clogged filter restricts airflow, reducing cooling performance and potentially damaging the compressor.
Regular filter maintenance is a simple yet vital aspect of CRX 110E upkeep.
Troubleshooting Common Issues ⏤ Error Codes
The Dometic CRX 110E incorporates error codes to diagnose potential problems. Common issues include insufficient power, compressor overload, or sensor malfunctions. If the unit fails to start, verify the power supply and check for tripped breakers. An “E1” code often indicates a temperature sensor error, requiring professional attention.
“E2” might signal a compressor fault, while “E3” could relate to fan motor issues. Refer to the full error code list in the manual for precise definitions. Before contacting support, attempt a system reset by disconnecting power for several minutes. Always document the error code displayed before seeking assistance, as this significantly aids the troubleshooting process.
Ignoring error codes can lead to further damage.
Diagnosing Cooling Performance Problems
Reduced cooling capacity in the Dometic CRX 110E often stems from airflow restrictions. Check the air intake and exhaust vents for obstructions like dust or debris. A clogged air filter significantly hinders performance; regular cleaning or replacement is crucial. Inspect the condenser coil for dirt buildup, requiring gentle cleaning with a soft brush.
Insufficient refrigerant can also cause poor cooling, necessitating professional servicing. Verify the unit isn’t overloaded with items blocking internal airflow. Listen for unusual noises from the compressor, indicating a potential mechanical issue. If problems persist after these checks, consult a qualified technician for diagnosis and repair.

Advanced Features & Settings
Explore the CRX 110E’s sophisticated options, including sleep mode for quiet operation, remote control capabilities, adjustable airflow, and programmable timer functions.
Sleep Mode and Energy Saving Options
The Dometic CRX 110E incorporates several features designed to minimize energy consumption and provide a comfortable sleeping environment. Sleep mode intelligently adjusts cooling and fan speed, reducing noise levels to a minimum – often lowering the fan to its lowest setting or even cycling it off periodically. This creates a peaceful atmosphere conducive to restful sleep.
Beyond sleep mode, the unit offers energy-saving settings allowing users to optimize power usage based on ambient temperature and desired comfort levels. These settings can be accessed through the control panel, enabling adjustments to temperature setpoints and fan speeds. Utilizing these features not only reduces electricity costs but also contributes to a more sustainable operation of the CRX 110E. Regularly checking and adjusting these settings ensures efficient performance.
Remote Control Functionality (if applicable)
If your Dometic CRX 110E model includes a remote control, it provides convenient, wireless operation of the unit from across the room. The remote typically mirrors all functions available on the main control panel, allowing you to adjust temperature settings, fan speeds, and operating modes without needing to physically access the unit.
Ensure the remote control has fresh batteries for optimal range and responsiveness. Point the remote directly at the CRX 110E’s control panel for reliable communication. Familiarize yourself with the remote’s button layout for quick and easy adjustments. Some models may feature additional remote-specific functions, such as a ‘favorite settings’ button for instant recall of preferred configurations. Proper remote usage enhances user convenience and control.
Adjusting Airflow Direction
The Dometic CRX 110E is equipped with adjustable airflow vents, allowing you to direct the cooled air precisely where it’s needed most. This feature optimizes comfort and efficiency by focusing cooling on occupied areas. Locate the directional louvers on the unit’s outlet vent; these can be manually adjusted horizontally and, on some models, vertically.
Experiment with different louver positions to find the airflow pattern that best suits your needs. Directing airflow away from sensitive electronics or furniture is recommended. Regularly check the louver positions to ensure they haven’t been inadvertently shifted. Proper airflow direction maximizes cooling effectiveness and prevents uncomfortable drafts, contributing to a more pleasant environment.
Timer Function ⎻ Programming & Usage
The Dometic CRX 110E features a programmable timer, enabling automated operation for convenience and energy savings. To activate the timer, press the “Timer” button on the control panel. Use the “+” and “-” buttons to set the desired run time in hours. The display will show the remaining time before the unit automatically shuts off.
The timer can be set for a maximum duration, as specified in the technical specifications. To cancel the timer, press the “Timer” button again or power off the unit. Utilizing the timer function allows you to pre-cool a space before arrival or automatically turn off the unit during unoccupied periods, reducing energy consumption and extending its lifespan.

Safety Information & Precautions
Always adhere to electrical safety guidelines and operating temperature limits when using the Dometic CRX 110E to ensure safe and reliable operation.
Electrical Safety Guidelines
Prioritize electrical safety during installation and operation of the Dometic CRX 110E. Ensure the power supply matches the unit’s requirements, preventing damage or fire hazards. Always disconnect the power source before performing any maintenance or repairs.
Never use damaged power cords or plugs. Grounding the unit correctly is crucial for preventing electrical shock. Avoid operating the CRX 110E in wet or damp environments, as this increases the risk of electrical hazards.
If you are unsure about any electrical aspect, consult a qualified electrician. Do not attempt to modify the electrical system yourself. Regularly inspect wiring for wear and tear, replacing damaged components immediately. Following these guidelines will ensure safe and reliable operation of your Dometic CRX 110E.
Operating Temperature Limits
The Dometic CRX 110E is designed to operate efficiently within specific temperature ranges. Exceeding these limits can compromise performance and potentially damage the unit. Generally, the recommended operating temperature is between 18°C and 32°C (64°F and 90°F).
Avoid operating the cooler in extremely hot or cold environments. Prolonged exposure to temperatures outside the specified range can reduce cooling capacity and shorten the lifespan of the compressor.
Ensure adequate ventilation around the unit to prevent overheating. Monitor the internal temperature, especially during extreme weather conditions. Refer to the full specifications for precise temperature limits and optimal performance guidelines. Operating within these limits guarantees efficient cooling and extends the life of your Dometic CRX 110E.
Preventative Maintenance for Longevity
Regular preventative maintenance is crucial for maximizing the lifespan of your Dometic CRX 110E. This includes routinely cleaning the condenser coils to ensure efficient heat dissipation, preventing dust buildup that hinders performance. Inspecting and tightening electrical connections annually minimizes the risk of malfunctions.
Periodically check the fan for obstructions and ensure smooth operation. Proper airflow is vital for consistent cooling. Avoid harsh chemicals when cleaning; mild soap and water are sufficient.
Following the recommended filter replacement schedule (see section on Filter Replacement) is essential. Consistent care and attention will significantly reduce the likelihood of costly repairs and ensure years of reliable operation from your Dometic CRX 110E cooler.
Warranty Information & Support Contacts
Your Dometic CRX 110E is covered by a [Specify Warranty Period ⎻ e.g., 1-year] limited warranty against defects in materials and workmanship from the date of original purchase. This warranty does not cover damage resulting from misuse, accident, or unauthorized modification.
To initiate a warranty claim, please retain your proof of purchase and contact Dometic customer support. For technical assistance, troubleshooting, or to locate authorized service centers, visit the Dometic website at [Insert Dometic Website Address].
Dometic Customer Support can also be reached by phone at [Insert Phone Number] or by email at [Insert Email Address]. Detailed warranty terms and conditions are available in the separate warranty document included with your product.

Technical Specifications Deep Dive
This section details the CRX 110E’s precise dimensions, weight, power consumption, refrigerant type, capacity, and operational noise levels for clarity.
Dimensions and Weight
Understanding the physical characteristics of the Dometic CRX 110E is crucial for proper installation and ensuring compatibility within your designated space. Precise measurements are essential to avoid any fitting issues during the mounting process. The unit’s overall dimensions, including height, width, and depth, must be carefully considered.
Furthermore, the weight of the CRX 110E plays a significant role in determining the structural support required for secure installation. A heavier unit necessitates a more robust mounting surface to prevent instability or potential damage. Accurate weight information is also vital for transportation and handling purposes. Detailed specifications regarding both dimensions and weight can be found in the accompanying technical drawings and documentation provided with your unit, ensuring a smooth and safe setup.
Power Consumption Details
Efficient energy usage is a key benefit of the Dometic CRX 110E. Understanding its power consumption characteristics allows for optimal system design and prevents overloading electrical circuits. The unit’s power draw varies depending on the operating mode – cooling, heating, or fan-only – and the selected temperature settings;
Detailed specifications outline the typical power consumption in Watts (W) for each mode, as well as the startup current (in Amps) required during compressor activation. This information is vital for selecting the appropriate power source, such as a generator or shore power connection. Monitoring power usage contributes to energy conservation and extends the lifespan of both the CRX 110E and your power supply. Refer to the technical data sheet for precise power consumption figures.
Refrigerant Type and Capacity
The Dometic CRX 110E utilizes a specific refrigerant designed for efficient cooling and minimal environmental impact. Typically, these units employ R-134a, a hydrofluorocarbon (HFC) refrigerant, though newer models may transition to more eco-friendly alternatives as regulations evolve. The refrigerant capacity, measured in kilograms (kg) or pounds (lbs), is crucial for understanding the cooling potential of the system.
Proper refrigerant charge is essential for optimal performance; undercharging or overcharging can significantly reduce cooling efficiency and potentially damage the compressor. Servicing the refrigerant system requires qualified technicians with specialized equipment and knowledge. Never attempt to handle or recharge the refrigerant yourself. Refer to the unit’s data plate for the exact refrigerant type and capacity.
Noise Level Specifications
Understanding the Dometic CRX 110E’s noise level is important for comfortable operation, particularly in sensitive environments like bedrooms or quiet cabins. Noise is typically measured in decibels (dB(A)), representing the sound pressure level perceived by the human ear. Specifications generally provide noise levels for both low and high fan speeds.
Expect the CRX 110E to operate within a range of approximately 40-55 dB(A) depending on the selected fan speed and operating conditions. Factors like mounting, vibration isolation, and surrounding ambient noise can influence perceived sound levels. Proper installation, including the use of vibration dampening materials, can minimize noise transmission. Regular maintenance, such as cleaning the fan blades, can also help maintain quiet operation. Refer to the product datasheet for precise noise level figures.