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How to Repair Mitsubishi Aircon Leaking Water Problem

Mitsubishi Troubleshooting

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Water leaking out of an air conditioning unit is a common problem among air conditioners, especially when improperly maintained or installed. The Mitsubishi air conditioner is no different, and a leaking Mitsubishi aircon can be dealt with at home through a proper cleaning.

Call Luce Aircon, your trusted aircon service company for any repairs regarding your Mitsubishi aircon units. Our technicians are well-versed in common air conditioner issues across all brands and models across Singapore - we'll get to the root of the problem!

Common Causes of Mitsubishi Aircon Water Leakage


Cause Description Solution
Clogged Drain Pipe The condensation drain tube can clog up over time as dust and debris accumulate in the piping. Drain the condensation tray inside the unit, and give it a thorough cleaning before placing it back into the unit.
Frozen Evaporator Coils Frozen evaporator coils can be caused by refrigerant leaks, which supercools condensation around the coils due to hot and humid climate. Let the AC unit thaw, then contact Luce Aircon for aircon servicing.
Dirty Air Filters Dust, debris, and mold can cause dirty filters, which restict air circulation inide the unit. Cleaning the air filter will resolve the issue.

Air conditioners often clog up and leak water when the aircon unit hasn't been cleaned in a while. Same goes for Mitsubishi aircon models, which can grow mold and accumulate debris in the air conditioning unit. Water leaking out of a Mitsubishi air conditioner can be due to 3 common reasons: an overflowing or clogged drain pipe, frozen coils, or dirty air filters.

#1 Clogged Drain Pipe

The condensation drain tube can clog up over time as dust and debris accumulate in the piping. Mold and mildew can also cause a clog, creating a backflow of water to run through your air conditioning unit. When this happens, water leaks out of the only exit: the aircon vents.

Besides a clog in the drain lines, the AC unit may also have an overflowing drain tray. This plastic tray is responsible for catching any condensate that flows out of the unit, and can overflow when not drained frequently. The simple solution is to drain the condensation tray inside the unit, and give it a thorough cleaning before placing it back into the unit.

#2 Frozen Evaporator Coils

Frozen evaporator coils can be caused by refrigerant leaks, which supercools condensation around the coils due to hot and humid climate. Water leakage happens as the ice melts, leaking water out of your system. If your Mitsubishi aircon leaking problem is caused by ice in the evaporator coils, let the AC unit thaw, then contact Luce Aircon for aircon servicing.

#3 Dirty Air Filters

Dirty air filters may be the cause of a leaking aircon, and is a common cause of many air conditioner issues. Dust particles in the air are composed of fibers, which can harbor mold that causes poor air circulation within your AC unit.

Poor air circulation may cause your AC to freeze up as the cooled air is trapped inside your unit. As the ice thaws, it causes that leaking problem. Cleaning the air filter will resolve the issue, but it would be better to take your aircon unit to a service center for maintenance and deep cleaning.

Troubleshooting Solutions to Fix Mitsubishi Aircon Leak

#1 Professional Maintenance

Professional aircon maintenance includes cleaning and reinforcing the unit. Our professional technicians will be able to safely clean your unit, removing any clogs or debris from your drain lines. A general cleaning or a chemical wash is recommended every 4-6 months to keep your unit up and running smoothly longer.

Taking your aircon for maintenance helps prevent any issues with your air conditioner as the technician will be able to find weak points before they become problems. An experienced technician will be able to find the source of the problem, and reinforce any weak points, or replace any parts that are starting to wear down.

#2 Aircon Repair

Aircon repairs are meant to look for and clear any issues with your aircon unit. If you suspect a refrigerant leaking problem, or if your air conditioning units are no longer functioning properly, then contact us, and our aircon technician will be able to diagnose the root cause of the problem, and fix any issues with your air conditioner.

#3 Aircon Cleaning Routine

A proper, scheduled aircon cleaning routine will keep your unit in tip top condition. Wash your filter with soap and water every two weeks, and clean the evaporator coil using a vacuum cleaner. The exterior of the aircon should be wiped clean, and the outdoor unit can be sprayed down to remove any dust and debris.

Maintaining Your Mitsubishi Air Conditioner

Aircon maintenance is the key to keeping your AC units in tip top condition. Our cleaning, diagnostics, and repair services at Luce Aircon will keep your unit durable, so you can enjoy the cool and refreshing air for a longer time!

Contact us today to hear about our full list of services!

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Staff Writer

Staff Writer

This article is written by our passionate staff writers who seek to share our knowledge from our business

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