Signs of a clogged drain line and how to clean it?

Signs of a clogged drain line and how to clean it?
How to clean an air conditioner drain line?

A large number of consumers neglect the maintenance of their air conditioner drain line as they think that there is no way it can get clogged - after all, there is only water flowing through there. However, the truth is that this is one of the components that is subject to the most dirt and can not only get clogged, but also cause major damage to your unit and home. In this article, we'll note the signs of a clogged drain pipe and how you can perform a cleaning with your own means.

What is a drain pipe?
An air conditioner's condensate drain line is usually a white PVC pipe that drains excess moisture produced by the system. The evaporator coil converts the moisture into water during heat exchange, which collects in a drain pan and then passes to the drain line.

As the water drains through the pipe, dust, dirt and other contaminants collect and cling to the pipe. Over time, these accumulations create favorable conditions for mold and fungus to grow, causing clogging. This collects additional moisture that can damage not only your appliance and your home.

Signs of a clogged air conditioner drain pipe

1. Accumulation of water
When the drain line becomes clogged, you may notice a buildup of water around the unit. Since this water cannot drain freely, it begins to accumulate in the drip trap.

2. Mold odor
When mold and fungus build up in the pipe, an unpleasant odor will begin to appear. It will become more acute when the appliance is turned on. The smell is not the only unpleasant thing, but it can also lead to irritation allergic conditions and other health problems.

3. Water stains and damage
You may see dark stains on your wall or on your floor. These stains are wet and may have a musty and damp smell. The appearance of such signs probably means that there is a water leak from the drain pipe. You are advised to take measures as soon as possible and seek a professional technician as such wet spots can damage your home.

4. The air conditioner switches off before it reaches the set temperature
Modern air conditioning systems have mechanisms that protect them in the event of a malfunction. This includes shutting off the system when the drain pan overflows. If you find that your unit shuts off before it reaches your desired temperature, it is very likely that the drain pan is full or there is a blockage in the line.

5. Presence of rust stains
If you notice rust stains around the drain line, you may very well have a clogged drain line. This means that the blockage is serious and corrosion has occurred in the pipes.

How do you unclog an air conditioner drain line yourself?
It is recommended to contact a professional air conditioner maintenance company, but if you have decided to do the cleaning yourself, follow these steps:

1. Turn off the air conditioner before starting the cleaning;
2. Look for where the drain line connected to the condensate tub and remove it from there;
3. You can use a vacuum cleaner to suck out dirt and accumulated water. In case more dirt remains inside the pipe, you can use the oblong brush to remove it.
4. You can remove the unpleasant smell of mold and disinfect using white vinegar. Under no circumstances use bleach as it can damage the system especially if it contains copper parts.

Check the condition of the drain pipe at least once a month to prevent blockage. This way, you will have peace of mind that fly and other bacteria will not build up in it and overflow at some point.

The best thing you can do for your air conditioner is to schedule a regular maintenance appointment before each active season. It will ensure that your unit is in working order, and if necessary, any pressing repairs will be made on time. 

For more tips related to air conditioning maintenance and operation, keep an eye on our blog. On our site, you can check out some of the best air conditioners on the market - those made by Fujitsu Airstage - and find information on the distributors you can buy them from. Don't hesitate to contact our team if you need any advice.