What is Humidity?
The water vapour contained in the air.
What Humidity range is recommended for my home?
Between 40-70% RH.
My Mitsubishi dehumidifier only removes small amounts of moisture
in cold weather. Why?
Relationship between
dehumidification and room temperature/humidity
The lower the temperature and humidity, the smaller is the
quantity of dehumidifying as shown on the graph.
The dehumidification quantity values shown on the graph were measured at constant
temperature and humidity, and do not reflect the actual usage conditions. |
A dehumidifier's ability to remove moisture is dependent firstly on the amount of
moisture in the Air. If dehumidification has reduced the humidity to a low level,
less moisture can be removed from the air. It is also more difficult to remove moisture
from cold air than warm air.
I use a Mitsubishi dehumidifier, but why is there still
condensation on the windows in the mornings?
The dehumidifier can take a few weeks to remove the moisture in your home to an
acceptable level. Setting the unit to high and leaving it on 24 hours a day best
does this. We also recommend the unit be moved from room to room. After a few
weeks the unit can then be set to one of the auto modes 50/60/70% and this will
maintain the humidity to your desired level. On cold mornings there often is a
small amount of condensation on the windows but this will evaporate quickly.
On cold nights it is important to have the dehumidifier running whilst the house is warm - this
will result in more moisture being removed than if you start the dehumidifier before you go to
bed, and will result in less condensation forming on the windows.
Can I leave my Mitsubishi Dehumidifier turned on 24 hours a day?
The unit can be left running unattended. It will switch off automatically when the tank gets
full or the required humidity is reached.
Why does the noise level fluctuate?
During operation the compressor in the unit will turn on and off. This will be noticed
by an increase in volume.
Why does the defrost lamp light up and the fan stop?
When the room temperature falls below 15 degrees C, the unit may go into defrost mode.
Defrost mode will occur every 30 minutes approx, and will last for a few minutes.
During defrost mode the fan will stop but the compressor will keep going.
Can I drink the water collected in the tank?
It is not advisable to drink this water as dust and other impurities can collect in the
tank. This water however is excellent for houseplants.
My Mitsubishi dehumidifier is noisy - is it faulty?
It is important to remember that all dehumidifiers make a noise due to compressors and fans
operating. Mitsubishi Oasis dehumidifiers are in fact the quietest products available
in NZ. However, they do still make a noise. Noise levels are dependent on many
factors. Place the unit on a firm, level surface. A unit placed on a wooden floor
will make more noise than a unit on carpet.
Damage during transportation in our experience is the most common reason for
excessive noise - it is important that your dehumidifier be handled carefully
during transportation and should always be transported upright.
The unit will also make more noise when used on a high fan speed setting.
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