How to Deep Clean Coils on Dometic RV Air Conditioner: Expert Guide

To clean the coils on a dometic rv air conditioner, turn off the unit, remove any debris, spray the coils with a coil cleaner, and rinse with water. Regular cleaning of the coils helps maintain the efficiency of the air conditioner and prevents blockages caused by dirt and grime buildup.

Neglecting to clean the coils can lead to reduced cooling performance and increased energy consumption. Taking the time to clean the coils ensures optimal performance and extends the lifespan of the air conditioner. Proper maintenance of the coils also helps to prevent the growth of mold and bacteria, ensuring cleaner and healthier air inside the rv.

How to Deep Clean Coils on Dometic RV Air Conditioner: Expert Guide

Credit: rvshare.com

Understanding The Importance Of Clean Coils

Why Clean Coils Are Crucial For Your Rv Air Conditioner’S Efficiency

Regularly cleaning the coils on your dometic rv air conditioner is essential for maintaining its efficiency and ensuring optimal cooling performance. The coils play a significant role in the cooling process by facilitating the transfer of heat from inside your rv to the outside environment.

When these coils become dirty or clogged with debris, their ability to efficiently transfer heat is compromised. This can lead to a range of negative impacts on your air conditioner’s performance.

The Negative Impacts Of Dirty Coils On Cooling Performance

When the coils of your rv air conditioner are covered in dirt and debris, several problems can arise that negatively affect its cooling performance. Some of the consequences of dirty coils include:

  • Reduced cooling capacity: Accumulated dirt and debris act as an insulating layer on the coils, preventing efficient heat transfer. As a result, your air conditioner has to work harder and longer to cool the air, ultimately reducing its cooling capacity.
  • Increased energy consumption: The harder your air conditioner has to work due to dirty coils, the more energy it consumes. This can lead to higher utility bills and unnecessary strain on your rv’s electrical system.
  • Poor airflow: Dirty coils can restrict the flow of air through the system, resulting in inadequate air circulation within your rv. This can lead to uneven cooling, hot spots, and discomfort for occupants.
  • Frozen coils: When the coils are excessively dirty, they may not be able to dissipate heat properly. This can cause the evaporator coils to freeze, further impairing the cooling performance of your air conditioner.

How Clean Coils Can Extend The Lifespan Of Your Air Conditioner

Regularly cleaning the coils of your dometic rv air conditioner can help extend its lifespan and prevent costly repairs or replacements. Here are some ways clean coils contribute to the longevity of your air conditioner:

  • Efficient heat transfer: Clean coils facilitate smooth heat transfer, reducing the workload on the compressor and other components. By preventing strain on the system, you can help prolong the lifespan of your air conditioner.
  • Reduced risk of damage: Dirty coils can lead to overheating and other issues that may cause irreversible damage to your air conditioner’s internal components. Cleaning the coils regularly can help prevent these problems and preserve the overall functionality of the unit.
  • Improved air quality: Clean coils ensure adequate airflow and prevent the buildup of mold, bacteria, and other allergens. This promotes healthier air quality inside your rv, benefiting both the occupants and the air conditioner itself.

Understanding the importance of clean coils is crucial for maintaining the efficiency, performance, and lifespan of your dometic rv air conditioner. Regularly cleaning the coils not only enhances cooling capacity but also reduces energy consumption and minimizes the risk of damage to the system.

By prioritizing coil cleaning as part of your routine maintenance, you can ensure a comfortable and long-lasting cooling experience during your rv adventures.

Step-By-Step Guide To Deep Clean Coils

Gather The Necessary Cleaning Supplies

Before starting the process of deep cleaning the coils on your dometic rv air conditioner, it’s essential to gather all the necessary cleaning supplies. Here are some items you will need:

  • Soft bristle brush or compressed air: To remove debris and dust from the coils, you can use a soft bristle brush or compressed air. This will help in effectively cleaning the coils without damaging them.
  • Coil cleaner solution: You will require a coil cleaner solution specifically designed for air conditioners. This solution will help in breaking down dirt, grime, and residue on the coils, ensuring a thorough clean.
  • Water source: Make sure you have access to a water source for rinsing the coils after applying the cleaner solution. A garden hose or a bucket of water will suffice for this step.

Prepare The Rv And Air Conditioner For Cleaning

Once you have gathered all the necessary cleaning supplies, it’s time to prepare your rv and air conditioner for the cleaning process. Here’s what you need to do:

  • Turn off the air conditioner: Before starting any cleaning process, ensure that the air conditioner is turned off. This will prevent any accidents or damage during the cleaning process.
  • Disconnect power source: For safety purposes, it’s important to disconnect the power source to the air conditioner. You can do this by either unplugging it from the electrical outlet or turning off the circuit breaker.
  • Remove any obstructions: Clear any obstructions such as furniture, curtains, or other items that may hinder access to the air conditioner and its coils. This will make the cleaning process easier and more efficient.

Safely Access The Coils In Your Dometic Rv Air Conditioner

To effectively clean the coils in your dometic rv air conditioner, you need to safely access them. Here’s how:

  • Remove the air filter: Start by removing the air filter from the air conditioner. This will provide you with better access to the coils and ensure a thorough cleaning.
  • Locate the coils: Once the air filter is removed, you will be able to locate the coils inside the air conditioner. Take a moment to familiarize yourself with their position before proceeding with the cleaning process.

Remove Debris And Dust From The Coils Using Compressed Air Or A Soft Brush

Now that you have safely accessed the coils in your dometic rv air conditioner, it’s time to remove any debris and dust. Here’s how you can do it:

  • Compressed air: Use compressed air to blow away any loose debris or dust from the coils. Ensure that you are holding the canister upright and at a safe distance from the coils to prevent damage.
  • Soft brush: If you don’t have compressed air, you can use a soft bristle brush to gently brush away any debris or dust from the coils. Be careful not to apply too much pressure, as it may bend or damage the delicate fins of the coils.

Apply A Coil Cleaner Solution And Let It Sit For The Recommended Time

After removing the debris and dust from the coils, it’s time to apply a coil cleaner solution. Here’s what you need to do:

  • Spray the coil cleaner solution: Apply the coil cleaner solution generously over the coils, ensuring complete coverage. Be careful not to oversaturate the coils or let the cleaner come into contact with other sensitive components of the air conditioner.
  • Let it sit: Allow the coil cleaner solution to sit on the coils for the recommended time specified on the cleaner’s instructions. This will ensure that the solution effectively breaks down stubborn dirt and grime on the coils for a thorough clean.

Rinse The Coils Thoroughly With Water, Ensuring All Cleaner Residue Is Removed

After the recommended time has passed, it’s crucial to thoroughly rinse the coils to remove any remaining cleaner residue. Follow these steps:

  • Use water source: Use a water source, such as a garden hose or bucket of water, to rinse off the coils. Ensure that you have sufficient water pressure to effectively remove all the cleaner residue.
  • Thoroughly rinse: Start at the top of the coils and work your way down, ensuring that all surfaces are thoroughly rinsed. Pay close attention to remove any stubborn debris or cleaner residue that may be clinging to the coils.

Allow The Coils To Dry Completely Before Reassembling The Air Conditioner

Once the coils have been rinsed, it’s crucial to allow them to dry completely before reassembling the air conditioner. Follow these steps:

  • Air dry: Let the coils air dry naturally. Avoid using heating devices or compressed air to speed up the drying process as it may cause damage to the coils.
  • Ensure complete dryness: Before reassembling the air conditioner, make sure that the coils are completely dry. This will prevent any moisture-related issues or the accumulation of dirt and dust during operation.

Remember, deep cleaning the coils on your dometic rv air conditioner is an essential maintenance task that should be done regularly to ensure optimal cooling performance. By following this step-by-step guide, you’ll be able to clean the coils effectively and maintain your air conditioner’s efficiency.

Tips And Best Practices

If you want to ensure that your dometic rv air conditioner is running efficiently and providing the cool comfort you need on your road trips, it’s crucial to clean the coils regularly. By keeping the coils clean, you can optimize the performance of your air conditioner and prevent potential issues in the long run.

In this section, we’ll explore some useful tips and best practices for cleaning the coils on your dometic rv air conditioner.

Cleaning Frequency And Preventive Measures To Maintain Clean Coils:

  • It’s recommended to clean the coils of your dometic rv air conditioner at least once a year to maintain optimal performance.
  • However, if you frequently travel to dusty or high-pollution areas, it’s advisable to clean the coils more frequently, around every six months.
  • To prevent the accumulation of dirt and debris on the coils, there are a few preventive measures you can take:
  • Regularly inspect the surroundings of your rv air conditioner and remove any leaves, branches, or other debris that could potentially clog the coils.
  • Ensuring proper airflow around the air conditioner unit can also help in preventing the buildup of dust and dirt. Trim any vegetation that is obstructing the air conditioner unit.
  • Using an air conditioner cover during off-seasons or when the rv is not in use can provide an added layer of protection against dust and debris.

Importance Of Regular Maintenance For Your Rv Air Conditioner:

  • Regularly cleaning the coils of your dometic rv air conditioner is essential to maintain its efficiency and overall performance.
  • Clean coils allow for better heat exchange, ensuring that your air conditioner can effectively cool the air inside your rv.
  • Neglecting coil cleaning can lead to decreased cooling capacity, increased energy consumption, and even potential damage to the compressor.
  • By investing a little time in regular maintenance, you can prolong the lifespan of your air conditioner and enjoy uninterrupted comfort during your travels.

Signs Of Dirty Coils And How To Identify Them:

  • One of the most apparent signs of dirty coils is a noticeable decrease in cooling efficiency. If your rv air conditioner takes longer to cool the interior or if the airflow feels weaker than usual, it’s likely an indication that the coils need cleaning.
  • Another telltale sign is the presence of ice on the evaporator coils. If ice is forming on the coils, it’s a clear indicator that they are not functioning optimally and require cleaning.
  • Inspecting the coils visually can also help identify dirt and debris accumulation. If you notice a layer of dust or other substances coating the coils, it’s time to give them a thorough cleaning.

How To Troubleshoot Common Issues After Cleaning The Coils:

  • After you’ve cleaned the coils of your dometic rv air conditioner, there are a few common issues you can troubleshoot before seeking professional help:
  • Check the air filters and ensure they are clean. Clogged filters can restrict airflow and diminish the cooling capacity of your air conditioner.
  • Inspect the condenser fan and make sure it’s functioning properly. If the fan is not running or is making unusual noises, it may require maintenance or replacement.
  • Verify that the thermostat settings are correct and adjusted to the desired temperature. Incorrect settings can cause inconsistent cooling.

By incorporating these tips into your rv air conditioner maintenance routine, you can be confident that your dometic unit will provide reliable and efficient cooling throughout your travels. Remember, cleaning the coils regularly and addressing any potential issues promptly will contribute to the longevity and performance of your air conditioner.

Frequently Asked Questions Of How To Clean Coils On Dometic Rv Air Conditioner

How Often Should I Clean The Coils On My Dometic Rv Air Conditioner?

It is recommended to clean the coils on your dometic rv air conditioner at least once a year. However, if you frequently use your rv or notice reduced cooling performance, it is advisable to clean them more frequently, such as every 3-6 months.

What Tools Do I Need To Clean The Coils?

To clean the coils on your dometic rv air conditioner, you will need a soft brush, a vacuum cleaner with a brush attachment, a coil cleaner solution or mild detergent, and a water hose with a spray nozzle. These tools will help you remove dirt, debris, and mold from the coils effectively.

How Do I Clean The Coils On My Dometic Rv Air Conditioner?

First, turn off the air conditioner and disconnect the power supply. Gently brush the coils to remove loose debris. Then, use the vacuum cleaner to suction the dirt and dust. Mix the coil cleaner solution or mild detergent with water, spray it onto the coils, and let it sit for a few minutes.

Finally, rinse the coils thoroughly with a water hose.

Can I Use Any Cleaning Solution For The Coils?

It is recommended to use a coil cleaner solution specifically designed for air conditioners. These solutions are formulated to effectively remove dirt, grime, and mold without causing damage to the coils. Alternatively, you can use a mild detergent mixed with water as a safer option.

Should I Cover The Unit After Cleaning The Coils?

After cleaning the coils on your dometic rv air conditioner, it is a good practice to cover the unit with an appropriate weatherproof cover. This will help protect the coils from dirt, debris, and adverse weather conditions, ensuring optimal performance and longevity of the air conditioner.


Regularly cleaning the coils on your dometic rv air conditioner is a crucial maintenance task that ensures optimal performance and energy efficiency. By following the simple steps outlined in this blog post, you can easily clean your coils and keep your air conditioner running smoothly for years to come.

Start by turning off the power and removing any debris from the unit. Next, use a soft brush or vacuum to gently remove dirt and grime from the coils. You may also need to use a coil cleaner or a mixture of water and mild detergent for stubborn buildup.

Remember to rinse the coils thoroughly and allow them to dry completely before turning the power back on. By taking these proactive measures, you can prevent coil corrosion, improve cooling efficiency, and prolong the lifespan of your dometic rv air conditioner.

Don’t neglect this essential maintenance task – your comfort and wallet will thank you!

Scroll to Top