What should I do before calling for Repairs?
If you are unfortunate enough to have your air conditioner stop working for
you, here are some points you can check before calling for service. Of
course, if you can't get the system functioning, Optimum Air is more than
willing to pop out and give you a hand. Simply fill in the
Ask for Service form,
give us a ring, or drop us an email.
Is the Power Supply Working?
Check the circuit breaker (or power point if the unit is a plug-in type
room air-conditioner) as these can be tripped by storms, lightning, power
fluctuations or interruptions.
Are the filters clean?
Sometimes a machine can shut down because the filters aren't allowing
enough air flow. Clean or replace the filters.
See our separate web page on Filter
Is the Outdoor Unit okay?
Sometimes it can be obstructed by shrubbery, plastic bags, twigs or other
invasions by foreign objects. Make sure it is clear of all debris.
Is the Indoor Unit draining properly?
The condensate drain from the indoor unit can sometimes clog up.
This can be due to dirt entering the external end of the pipe. Wasps
are known to love venturing inside the condensate drain and building their
nests there, with a big effect on how water can drain away from the system.
Is the Remote Control Working?
If your system has a remote control check to see that buttons being
pressed on the remote are being registered by the air conditioner itself.
This can be due to damage to the remote unit, but is almost always simply
because the batteries are flat. You can easily check that they are
working by trying them in another remote control - maybe the TV or DVD, etc.
In most cases the batteries are AAA type.
Are the Temperature Settings Correct?
This is best explained by example. If you have set the system to
cooling mode, it's 20ºC and you have the air
conditioner set to 24ºC, then it will simply not
operate, as the room is already less than the requested temperature.
The unit is operating correctly. Similarly if you have it set for
heating, it's 28ºC and you have the heat level set to 25ºC
then again, the air conditioner doesn't have to do anything to heat the room
Have you selected the correct mode?
While generally the Auto mode is sufficient for general use, if the
outdoor and indoor temperatures are similar, then the machine can sometimes
get a little confused as to which mode to use. Auto allows the unit
itself to determine whether it needs to heat or cool. Sometimes you
need to lend it a hand and specifically choose to use Heat mode or Cooling
Is it exceptionally cold?
During very cold weather (say below 5°C) the unit may appear to stop and
make unusual noises or blow cold air indoors. This is normal as it is
defrosting the outdoor unit. During the defrosting process the unit's
controls should be left untouched as the process is fully automatic and
heating will return once the defrosting is complete.
The Air Conditioner Owner's Manual
It's sometimes useful to know more about your Air Conditioner. Your
Owner's Manual is normally an essential reference for the system both now and in
the future. It's probably an overwhelming piece of information when you
first get the machine, but after you've had your system for some time, there may
be some further aspects of operation you need to know about. If you have
mislaid it, and the air conditioner is not particularly ancient, it's almost
always possible to download one from the manufacturer's web site. See our
Links Page for links to manufacturers supplied by
Optimum Air, or just do a normal search for the Australian office of your
Don't forget: you can always request a Service Call by using our online
Service Request Form.
Back to Top