You should act fast if there are some drips from your AC. Water leakage into your unit can destroy parts with the attendant high costs of reconstruction. The dripping noise is also irritating and distracting.

There are a few common causes of dripping noises from AC units:

  • Clogged condensate drain line: This condensate drain line removes excessive water from the air conditioner. When the drain line gets clogged, moisture may back down and leak into the unit.
  • Frozen evaporator coils: Your evaporator coil gives you fresh, cool air. When the coils form ice and melt, water might drip down it.
  • Low refrigerant levels: The low refrigerant levels may eventually result in freezing one of the evaporator coils and dripping down the water.
  • Damaged drain pan: The drain pain is underneath the AC unit and removes water from the condensate drip line. Therefore, water may drip into the ground if the drain pan gets spoilt.

Solutions for dripping AC units

  • Unclog the condensate drain line: A wet/dry vacuum cleaner or a drain snake will effectively unclog your condensate. If you can’t clear the drain line by yourself, you may have to involve an HVAC technician for assistance.
  • Defrost the evaporator coils: You can shut down the AC and allow them to become unfrozen if they are frosted. It is possible to hasten the thawing process by blowing hot air into it using a dryer at the lowest temperature.
  • Recharge the refrigerant: In case the refrigerant level is low, be sure that you call a competent HVAC engineer to refill the system for you.
  • Repair or replace the drain pan: You can also do some repairs on the damaged drain pan or even replace it with another new one.

However, if you prefer to do the job with someone, call an experienced HVAC technician.

Prevention Tips

  • Regularly clean the condensate drain line: The condensate drain line should also be cleaned regularly and always open to prevent clogging. Then add hot water, mix with vinegar, and wash your drain line.
  • Keep the evaporator coils clean: To keep evaporator coils clean and warm is essential, as freezing won’t happen if this is done. For this purpose, you can use various forms of coil cleaner or an equal mixture of vinegar and water.
  • Schedule regular AC maintenance: Other than that, regular AC maintenance can help prevent dripping water. As such, hire an HVAC technician to check your AC unit and adjust accordingly.

Avoid trying to switch off the “dripling” sound coming out of your AC unit personally. If you cannot switch it off independently, consult an HVAC technician. That will enable them to pinpoint the problem and recommend a suitable solution.


Dripping noises can come for several reasons, including clogged condensate lines, frozen evaporator or refrigerant, or any other damage, such as a cracked drain pan. You must take urgent steps to stop the dripping noise and save your AC.

Consequently, if you want to fix the same problem, call an expert in HVAC technician. In this way, they will be able to detect a problem and develop an appropriate solution.

In addition to the solutions mentioned above, there are a few other things you can do to prevent dripping noises from your AC unit:

  • Ascertain whether the condensate drain line is pitched correctly. If the drain line slopes downwards, then water will run smoothly.
  • Insulate the condensate drain line. These measures will ensure that the line does not freeze up.
  • Place a drip pad under the air-conditioning system. It is necessary so that your house is not damaged by water in case the overflowing drain pan should happen.
  • Adhering to these guidelines will ensure your air conditioner works without dripping sounds.

FAQ’s about ( Dripping Noise from AC )

Q: What are the main reasons for the dripping noise associated with AC units?

A: The most common reasons for drip sounds by AC include:

  • Clogged condensate drain line
  • Frozen evaporator coils
  • Low refrigerant levels
  • Damaged drain pan

Q: What should I do to clear a clogged condensate drain line?

A: A wet/dry vacuum cleaner or a drain snake is used to unblock a condensate drain line. You might call an HVAC technician if you fail to de-clog the drain line.

Q: What do you do when your freezer coil turns waterlogged and frosted?

A: You could also switch off your AC system and allow natural thawing of the frozen EVAP coils. An electric heater at its lowest level also increases the rate of unfreezing.

Q: To do so, how are you supposed to recharge your refrigerant?

A: A qualified HVAC technician is required when recharging the refrigerant in your AC unit.

Q: Can you advise how to mend or replace a broken drain pan?

A: You may be required to repair or install a new one if your AC unit’s drain pan gets damaged. A qualified HVAC technician will assist if you cannot handle the repairs yourself.

Q: What measures can I take to stop my AC unit from making dripping sounds?

A: You should ensure your air conditioner does not drip on noise.

  • Ensure that you regularly clean your condensate drain line.
  • Keep the evaporator coils clean
  • Schedule regular AC maintenance
  • Ensure the condensate drain line is slanted, wrap insulation around it, and fix a drip pan below the air conditioner.

Q: When do you call for help from a professional HVAC technician?

A: If stopping the dripping noise yourself fails, calling in an HVAC technician could be the best option. Otherwise, you can do so when you are comfortable repairing the drain pan or recharging the refrigerant.

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