Why Some Air-con Have Foul Smell?
Certain air conditioning units emit a foul smell when switched on. But what are the possible causes for unpleasant odours emanating from these appliances? More importantly, what steps can be taken to resolve this problem?
When air conditioners dehumidify and extract heat from the surrounding area, water is produced as a waste product. The moisture accumulates, creating a dark and damp environment that aids in the formation of mold, slime mold or mildew, all of which release a very pungent smell. Furthermore, as the external section of an air conditioning unit resides outside in most homes and offices, foreign particles or debris are easily trapped in the ducting. When these particles rot, they may also contribute to the musky and undesirable aroma.
While the smell is a predicament, it is good to know that it can be remedied by a professional air-con company of choice. They will turn off the air conditioner and carefully pull one end of the condensation line to remove the tubing from the unit. Caution is necessary when pulling the line free because water that is trapped within may spill out and make an unnecessary mess. Rinse the tube thoroughly with a solution of bleach and water to remove the mold that developed in or on the line.
They may also drain any standing water in the drip pan. Placed on the underside of the air conditioning unit, the pan (or condensate tray) collects condensation that drips from the evaporator coil. This pool of stale water, combined with the dark environment, is an ideal breeding ground for mildew and bacteria. Thus, they understand that it is important to scrub the pan clean using a non-abrasive sponge and chemicals. After thorough cleaning, they will leave the tray aside to completely dry. If the pan still smells rancid after scrubbing, more chemical may be required.
Practice due diligence and examine the interior of the air conditioner. They will also remove any foreign objects such as debris, animal carcasses or rotting vegetation that might be trapped inside. After that, they will use a foaming coil cleaner, spray the evaporator coil with chemical to eradicate dust and dirt before rinsing it with a hose. Proceed to rinse the interior of the air conditioning unit until the water that drains out becomes clear.
The final step requires will to be reconnecting the condensation line, place the (thoroughly dry) drip pan back on the underside of the unit and install a new air filter. They will make sure that the appliance is dry before switching it back on again. However, in the situation where the air conditioner still gives off a bad odor, seek help and recommendations from the air-con company.