Your Daikin Air Conditioner Isn’t Broken - It Just Needs These Fixes

June 19, 2025

Daikin air conditioner not working right? Don’t worry, here are some easy ways to fix it.

7 common problems in Daikin air conditioner

Air conditioner is not cold

If your Daikin AC isn’t cooling the room like it should, don’t panic. Try these quick checks first:

  • Close all doors and windows: If any are open, the cool air will keep leaking out while hot air from outside gets in, making the AC work harder and cool less effectively.
  • Check the remote settings: Make sure it’s in cooling mode (look for the little snowflake icon). Also, see if the temperature is set to 24°C or lower. After making changes, give it about 10 minutes to see if things improve.
  • Look at the air filters: Filters can get dusty fast, especially in summer. Try to check and clean them every 4 weeks to keep the cool air flowing.

Leaking water

If you notice a lot of water coming from the unit, it could be caused by:

  • A dirty or blocked air filter
  • A crack or hole in the drain pan

Start by checking and cleaning the air filter. If the leak’s still there, it’s best to call a technician to take a closer look.

Air conditioner has bad smell

If you catch a light smell right after switching it on, don’t worry. It’s likely just the ozone from the Streamer air purifying feature. If the smell sticks around, gets worse or smells like something’s burning, turn off the unit right away and call a technician to check it out. 

Daikin air conditioners just need some quick fix to run normally
7 common problems in Daikin air conditioner you need to know

Daikin air conditioner remote not working 

Start by changing the batteries, that’s usually the quick fix. If it’s still not working, try resetting it:

  • Hold the on/off button for 2 seconds
  • Then press it again to turn the unit back on

AC not responding to remote control

What if Daikin air conditioner does not respond to the remote? Here’s what to check:

  • Try changing the batteries first.
  • Reset the remote (see “AC remote not working” for steps).
  • Reset the whole system (check the “How to reset air conditioner” section).
  • Make sure nothing is blocking the sensor on the aircon unit.

AC keep turning off

If your AC keeps switching off after just a short while, it might be “short cycling”. This usually happens because of a few common problems:

  • Dirty air filters: When the filters are too dusty, your AC can’t breathe properly. Try taking them out and clean. 
  • Dirty condenser coils: These are in the outdoor unit and should be cleaned by a professional.
  • Low refrigerant: If there’s a leak, the system can’t cool properly and might shut down often. Don’t try to fix this yourself, refrigerant can be harmful so it’s best to call a technician.

Daikin heat pump troubleshooting

This problem can depend on the season.

  • In summer: Try cleaning the air filter first. If that doesn’t help, the issue could be dirty condenser coils or a refrigerant leak and you will need a technician to check.
  • In winter like weather Gold Coast right now, your heat pump might stop working because of things like broken sensors, valves or a leaking part. These issues need a professional to fix, so it’s best to get it checked soon.

There are some minor problems you can fix yourself, but most of the time, it’s best to call a professional technician to avoid risks and get proper, faster support. DEEPCHILL air conditioning repair Gold Coast has years of experience with Daikin and many other AC brands. Call us now to get your system fixed.

Category: Tips & Tricks

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