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Our comprehensive guide focuses on RV water heater repair, troubleshooting, and fixing common issues. Whether you're a seasoned RV enthusiast or a novice traveler, we understand that dealing with problems related to your RV water heater can be frustrating.
From diagnosing a lack of hot water to addressing malfunctioning components, we're here to provide you with valuable insights and step-by-step instructions. Our aim is to help you resolve these issues and ensure a comfortable and worry-free journey on the road.
Let's delve into the world of RV water heater repair and troubleshooting together.
We have gathered an extensive compilation of symptoms, problems, troubleshooting techniques, and repair tips from RV users, consumer complaints, RV heater forums, professional plumbers, and manufacturers. This comprehensive guide provides detailed instructions for repairing an RV water heater, focusing specifically on two of the most popular brands: Atwood and Suburban.
Please note that installations, troubleshooting, repairs, and servicing should always be carried out by a certified professional. To ensure quality service, you can obtain up to 3 free quotes from local plumbers by contacting this company and filling out a short form.
RV water heater repair involves addressing the most common issues that can occur. By identifying and understanding these problems, you can effectively troubleshoot and apply the necessary fixes to keep your water heater running smoothly during your adventures.
Here, we present the most common problems that can occur with your heating device:
If your RV water heater is making noise, such as a high-pitched, popping, or whistling sound, it is time to check some elements before going on a long trip.
One of the common causes of a high-pitched noise in electric heaters is the accumulation of limescale, predominantly composed of calcium, on the heating element. Over time, as the water is heated and evaporates, minerals can solidify and form a layer on the heating element. This buildup of limescale can disrupt the normal flow of heat, leading to the production of a high-pitched noise. Additionally, corrosion on the heating element can also contribute to the development of this type of noise.
To address these noise-related issues, regular maintenance is crucial. Periodically cleaning and flushing the water heater can help remove limescale deposits, both on the heating element and within the tank. A descaling solution or a mixture of vinegar and water can be used to dissolve the limescale buildup. In severe cases, where the limescale or corrosion is extensive, replacing the affected heating element might be necessary.
The popping noise, which can be heard from both electric and gas units, is often the result of mineral deposits settling at the bottom of the tank. These minerals, such as calcium and magnesium, are commonly found in water sources and can accumulate over time. As the water heats up and evaporates, the minerals separate from the water and form sediment at the bottom of the tank. When the water heater operates, the heat causes the trapped air bubbles within the sediment to expand and burst, resulting in the popping or crackling sound.
For the popping noise caused by mineral deposits in the tank, flushing the water heater regularly can help remove the accumulated sediment. Draining the tank and flushing it with fresh water can dislodge and eliminate the mineral buildup, reducing or eliminating the popping sounds.
In the case of a whistling sound, it is typically caused by debris lodged within the check valve of the water heater. The check valve is responsible for regulating the flow of water within the system. If debris, such as dirt or small particles, becomes trapped within the valve, it can obstruct the normal flow of water, creating turbulent and high-speed water flow that produces the whistling noise.
To resolve the whistling sound resulting from debris in the check valve, it is essential to remove the obstruction. This can be done by shutting off the water supply, disassembling the check valve, and thoroughly cleaning it to ensure unobstructed water flow.
When facing a pilot outage issue where the RV water heater won't start or fails to stay lit, it is important to be aware of the associated symptoms and implement appropriate solutions.
Here is how to troubleshoot an RV water heater when experiencing a pilot outage (when the button is released):
If there are no sparks on the electrodes of the RV water heater, there are several steps you can take to address the issue:
This issue occurs when the gas valve fails to open due to a lack of voltage for the electric spark. To resolve this problem, consider checking and replacing the following components if necessary:
If you notice water dripping from the pressure and temperature relief valve of your RV water heater, there's no need to worry. In closed water heating systems found in RV vehicles, when the water expands, excess pressure needs a way to escape, and the valve opens to relieve it.
If the dripping problem occurs frequently, here's a solution to repair the RV hot water heater by establishing an air pocket:
If you notice a bad odor emanating from the hot water faucet of your RV, it is likely that you are experiencing a rotten egg problem known as hydrogen sulfide or sulfur water. This occurs due to a chemical reaction between released hydrogen and sulfur in the water, which is further exacerbated by bacterial growth.
For instance, RV water heaters like Atwood that have a protective coating on the interior of the tank may release hydrogen from the water during the corrosion-fighting process. This chemical interaction between sulfur and released hydrogen leads to the formation of hydrogen sulfide, causing the unpleasant rotten egg odor.
Another solution to prevent corrosion, premature tank failure, and potential leaks is found in Suburban RV water heaters. These models utilize an anode rod to safeguard the storage tank. However, the anode rod may deteriorate over time, leading to sediment accumulation within the tank. This, in turn, promotes the growth of bacteria and the production of the foul-smelling rotten egg odor.
When winterizing the water heater with antifreeze, it's important to note that this process can accelerate the decay of the sacrificial anode rod unless it is removed.
Do you need to replace the RV water heater?
The answer is no.
You can follow the RV repair instructions provided below or contact a professional.
A solution to address the issue of a rotten egg smell is to flush the RV water heating system. Begin by draining the heater's tank.
When you open the drain plug, water should flow steadily. If it doesn't, open the pressure and temperature relief valve to allow air in and use a wire to remove any obstructions from the drain opening.
To flush your RV water heater, you have several recommended options. You can use vinegar, with a ratio of 2 parts vinegar to 1 part water, or 3% hydrogen peroxide, with a ratio of 1 part hydrogen peroxide to 160 parts water. Alternatively, you can use chlorinated water or household liquid bleach, with a ratio of 1 part chlorine to 230 parts water.
Allow the chosen solution to sit inside the tank for a few hours, and then thoroughly flush the system. Note that removing the taste, particularly that of chlorine, may be challenging, so consider using a filter to help with this.
When troubleshooting Atwood and Suburban RV water heaters, it's important to remember that this list does not cover all possible problems. Many factors can directly or indirectly affect the performance of your RV water heater. Always refer to the manufacturer's guide for instructions and consult Atwood or Suburban technical support for detailed assistance.
Additionally, remember to consult the manufacturer's guide frequently when performing repairs on your RV water heater.
When it comes to RV water heater problems, proper timing, regular maintenance, accurate troubleshooting, and safety are of utmost importance. Addressing problems promptly can prevent further damage and ensure a reliable water heating system during your travels.
While some minor repairs and maintenance tasks can be performed as do-it-yourself (DIY) projects, it is crucial to know your limitations. DIY efforts should only be undertaken if you have the necessary knowledge, skills, and tools to complete the task safely and effectively. In cases where the problem is complex or involves intricate technical aspects, it is advisable to call a professional.
Regular maintenance is key to prevent issues before they arise. Following the manufacturer's guidelines for cleaning, flushing, and inspecting your RV water heater will help prolong its lifespan and maintain optimal performance.
Prioritize safety, and when in doubt, consult with professionals who can provide the necessary guidance and assistance for a reliable and well-maintained RV water heater.