TROUBLESHOOTING
PROBLEM
Humidifier does
not turn on or
turns off during
operation
Water overflows
from water
reservoir
Peculiar odor
Excessive noise
White dust
accumulation
Clean Reminder
illuminates
on the digital
display
POSSIBLE CAUSE
• Out of water
• Room humidity higher than
programmable humidistat
setting
• Auto mode
• Damaged water tank
• Water tank outlet valve
• Moving the humidifier with
water in the tank causing
too much water to enter the
water reservoir
• Tank not seated securely on
the base
• Unit is new
• If unit is in use, the odor
may be a dirty tank or old
water in the tank and water
reservoir.
• Unit is not level
• Low water level
• Hard water used
• Demineralization cartridge
needs to be replaced
• Transducer/Ultrasonic
Membrane needs cleaning
• Clean reminder needs to
be reset
SOLUTION
• Fill the water tank
• The humidifier has cycled off. Set the
humidistat to a higher setting or to
CO (continuous on).
• Room humidity is higher than 56%
RH. The humidifier will cycle on
when the humidity drops below
55%RH.
• Check tank for cracks or damage
• Debris prevents a watertight seal.
Use your finger to open the valve
and rinse with water.
• Remove the water tank and pour
out all water in the water reservoir.
Replace the water tank. The water
reservoir will refill automatically.
• Empty all water from the water
reservoir and place the water tank
properly on the base. The water
reservoir will refill automatically.
• Open the tank cover and let the
tank air out in a cool, dry place for
12 hours
• Clean following the Weekly
Cleaning instructions. If odor
persists, clean following the Scale
Removal instructions.
• Place unit on a flat, even surface.
• Check the water level; refill the
tank if the water is low
• Use distilled water and a
demineralization cartridge
• Replace demineralization cartridge
• Follow Scale Removal instructions
in the How to Clean and Care
Section.
• After filling the tank with water,
press and hold the Night-Light
button until the red out of water
symbol turns off.
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