When it comes to preparation and maintenance of your caravan, you are second to none. You take great care of your unit, knowing that this will save you time and money in the future.

Caravan water heater lime scale problems

But here is something to remember: no matter how hard you try to avoid trouble, there may be a time when you face a challenge.

For example, lime scale in your caravan water heater can become a problem when you least expect it. Furthermore, this isn’t the result of something you have done wrong. Instead, it can happen over time, even if maintenance is always on your mind.

What you Need to Know

Some caravan water heater problems are more serious than others. Fortunately, lime scale build up is not the end of the world. This isn’t something you want to deal with, but with the right approach you can take care of it in no time at all.

Before you do anything, make sure lime scale build up is your problem. This is typically diagnosed in two ways:

It takes an abnormally long time to heat the water.
Your water heater makes strange noises, such as “whining” and “singing.”
Note: if you live in an area with soft water, there is a good chance that lime scale build up is not your problem. Conversely, if you live in a hard water area, there is a much greater chance that this is the culprit.

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What is Lime Scale?

All in all, lime scale doesn’t sound like a serious issue. However, if you don’t take care of the problem, it will continue to get worse. And if you wait too long, you may find that your water heater is beyond repair and now needs replaced. This is not a risk you should be willing to take.

In short, liquefied limestone has the potential to adhere to solid surfaces, such as the inside of your water heater. Over time, the lime scale creates a layer of hard rock on the bottom of your water heater, thus leading to a variety of issues.

Note: here is an image of lime scale in a pipe to give you a better idea of the impact it can have.

Is Prevention Possible?

The best way to deal with lime scale in your caravan water heater is to prevent this from becoming a problem. Of course, this is easier said than done.

The best thing you can do is install a soft water conditioner. This is an additional cost that comes with additional maintenance, but it can go a long way in preserving the life of your water heater. Not to mention the fact that it increases performance, thus making any holiday in your caravan more enjoyable.

Remove the Lime Scale

If you don’t have a soft water conditioner in place and have no plans of installing one, you aren’t out of luck. Instead, you have two options:

Replace the water heater after lime scale causes too much damage (not recommended).
Remove the lime scale every now and again, such as when you prepare your unit for summer or storage before winter.
If you are interested in removing lime scale from your water heater, there are several steps you need to take.

Tip: your safety should always come first, so don’t take on this job unless you know exactly what you are doing. If you make a mistake, you are at risk of suffering severe burns.

1. Turn off the power to the water heater, ensuring that the water cools before you begin your work.

2. Release the pressure inside the water heater.

3. Use the drain valve to remove all the water. This could be difficult if lime scale build up has blocked the drain. You may need to periodically insert a screwdriver or other device to break up the lime scale.

4. Pour a gallon of manufacturer recommended lime scale remover into the water heater. By using a funnel you can ensure that you don’t spill the fluid, leaving your unit with a bad odor.

5. Let the solution sit for approximately 30 minutes. From there, fill the tank halfway and let it drain once again. If you notice lime scale chunks draining, repeat this process.

Once you complete these five steps, you can then fill the water heater.

Don’t Wait Too Long

If you have reason to believe that lime scale in your caravan water heater could become a problem, you don’t want to wait too long to take the five steps above. Even if you have yet to run into any concerns, it’s better to be proactive. This ensures that your water heater remains in good condition, and that you don’t face any unexpected issues while you are on a trip.

Be Prepared for Lime Scale

You should be prepared for any and all caravan water heater problems, as you don’t want to get stuck in a bad situation when you are on the road.

A water heater is one of the nicest features of a caravan, as it means you have access to hot water regardless of your location. On the downside, it takes some maintenance and upkeep to ensure efficient operation.

Lime scale build up is a common problem. It is also one that can be easily dealt with if you take the right approach to maintenance, rather than let it linger.

Do you have any experience with lime scale in your caravan water heater? How did you solve this problem? Share your thoughts in the comment section below.