If your Daikin Nexura outdoor unit emits water or steam, here are some of the reasons this might be the case:

In HEAT or RADIANT operation

The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation.

In COOL or DRY operation

Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips.

Daikin Nexura Outdoor unit emits water steam


Your Daikin Nexura will make certain noises as part of its normal operation (if you hear noises outside this list you may need to take action or contact your local AC mechanic): 

The following is a list of noises you may hear that are not a cause for concern:

A sound like a flow of water:

  • This sound is generated because the refrigerant in the air conditioner is flowing.
  • A pumping sound of the water in the air conditioner it is heard when the water is pumped out from the air conditioner in cooling or drying operation.
  • The refrigerant flows in the air conditioner even if the air conditioner is not working when the indoor units in other rooms are in operation, which may sound like a flow of water. 

Blowing sound:

This sound is generated when the flow of the refrigerant in the air conditioner is switched over.

Pinging sound:

This sound is generated when the size of the air conditioner slightly expands or shrinks as a result of temperature changes.

Clicking sound during operation or idle time:

This sound is generated when the refrigerant control valves or the electrical parts operate.

Clopping sound:

This sound is heard from the inside of the air conditioner when the exhaust fan is activated while the room doors are closed. Open the window or turn off the exhaust fan.

Daikin Nexura Do I Hear Sound


The air conditioner stops generating air flow during operation.

Once the set temperature is reached, the airflow rate is reduced and operation is stopped in order to avoid generating cool airflow (during heating) or in order to keep the humidity from rising (during cooling). Operation will resume automatically when the indoor temperature rises or falls.

Unit does not start immediately when “ON/OFF” button was pressed, soon after operation was stopped or when a new mode is selected.

The delay in starting in these situations is to protect the air conditioner from wear and tear. You should wait for about 3 minutes before trying these options. 

The HEAT operation stops suddenly and a flowing sound is heard.

The outdoor unit is taking away the frost. The HEAT operation starts after the frost on the outdoor unit is removed. You should wait for about 4 to 12 minutes.

The flap does not start swing immediately.

The air conditioner is adjusting the flap position. The flap will start moving soon.

The radiant panel surface temperature doesn't feel very hot

During RADIANT1 or RADIANT2 operation, the surface temperature of the panel will be about 55°C at maximum; this is the normal condition.

If you think your Daikin Nexura needs cleaning/maintenance, take a look below for do's and don'ts:

  • Wait for a while before cleaning the unit after RADIANT operation. The surface temperature of the radiant panel may be high immediately after the operation.
  • Before cleaning be sure to stop operation and turn the circuit breaker off (if unsure seek expert advice).
  • Do not touch the aluminium fins of the indoor unit, they may be hot.

For cleaning, do not use any of the following materials:

  • Hot water above 40°C.
  • Benzine, gasoline, thinner, other volatile oils.
  • Polishing compound.
  • Scrubbing brushes, or hard bristles.
Daikin Nexura Care and Cleaning


Yes, STC rebates are available where you have a Fronius SCERT inverter coupled with a Selectronic SP Pro micro-grid.  This is a standard solution we offer. 

The cost to go off-grid will depend on your expected/anticipated energy demand. With knowledge of your energy demand we can then help you size your battery storage, solar PV, generator, microgrid inverter, etc.

It is worth noting that connecting a new block to the power grid can cost between $15,000 and $50,000 depending on the situation. And a typical energy bill for the average household is around $3000-$4000 per year (or higher in colder areas).  Given the cost of grid connection and supply, a well maintained and high quality off-grid system is likely to be cheaper in the long run (20 years +), depending on your particular situation (if grid connection is >$30,000 you can pretty much assume off-grid will be cheaper).   

You want as large a rooftop solar PV system as you can fit on your roof to reduce the amount of time you need to rely on your backup generator  that may be required for periods during winter periods or times of low solar radiation (i.e. multiple cloudy days).

We generally recommend a minimum 10kW solar PV system, but the final size will depend on your anticipated load/demand. We can help you work this out by using our load profile sheet as part of our comprehensive quoting process.

Your solar system should cover your power needs 95% + of the time, however we highly recommend a good quality, automatic start generator to ensure you have energy security and full power capacity throughout the worst days of winter.