21
en
Q.
Water tank cap is too tight to unscrew
A. This could be a cause of the air pressure within the
water tank. Depress the spring on the bottom of the
water tank cap to release air from the water tank.
Continue to do this until you are able to unscrew the
water tank cap.
Q.
Unit is running intermittently.
A. How long has it been since the contents of the cart-
ridge were replaced? If 2-3 months have passed, it is
time to replace the contents of the cartridge. However
the demineralization cartridge and or the granules
must be exchanged at the latest after 6 months or the
unit does not reach its full performance anymore.
• If the contents of the cartridge were just replaced there
are probably too many granules in the cartridge. Re-
move 2 tablespoons of granules from the cartridge.
Accessories
Q.
Do I need to keep any parts before I replace the
demineralization cartridge?
A. Yes, always keep the water tank cap (this is the piece
that attaches the demineralization cartridge to the
water tank).
Q.
What is the Hydro Stick and how long is it good
for?
A. The AIR-O-SWISS Hydro Stick keeps humidifiers
operating at their highest level between recommended
cleanings*. Good for one year, the Hydro Stick ensures
the humidifier’s functionality while providing fresh
humidification performance. It needs to be replaced
once a year.
* Refer to the cleaning instructions in this manual.
Q.
Placement of the Hydro Stick
A. Please see picture 28 for instructions.
Q.
Replacement reminder
A. In each Hydro Stick box and on all the new products
there is a Hydro Stick lifecycle indicator. Check the box
of the month when starting to use the Hydro Stick and
write the year on the line indicated. Exchange it after
one year.
Q.
What is EZCal?
A. There is a sample packet of EZCal included in the
packaging of your humidifier. EZCal is used for cleaning
and descaling any of the AIR-O-SWISS humidifiers and
cleans mineral build-up. EZCal is the only recommen-
ded cleaning and descaling solution. Do NOT use any
other cleaning solutions since it can damage the
product. Any use of cleaning solutions apart from EZCal
will void the warranty. Instructions for using are on the
packet. Only use 1 packet for 32oz of water. Do not
change the ratio. It can also be used for other humidi-
fier brands. Thoroughly rinse the base with tap water
and make sure no EZCal residues remain in the base!
EZCal is available at selected retail stores and online
www.airoswiss.net.
Summary of Contents for AOS U650
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