14
Troubleshooting
CAUTION: Use only EPA Registered Bacteriostat.
Use of other water treatment products may damage the filter elements. Under no circumstances should you use water treatment products
designed for Roto belt or Ultrasonic humidifiers.
Trouble
Digital display not illuminated.
Fan not operating (digital
display is illuminated).
Fan running continuously,
unit will not shut off.
Poor evaporation of water.
Neither bottle emptying.
Bottles continues to empty.
Left bottle not emptying.
Refill display “F” is on before
bottles are empty.
Display blinks or fan moves slightly when
humidifier is plugged in.
Alternating “F” and room humidity displayed.
Alternating “CF” and room humidity
displayed.
Probable Cause
• No Power.
• Power button has not been depressed.
• ROOM humidity level is not 3% or more
below SET humidity level.
• Reservoir is empty.
• Float is obstructed.
• SET humidity level is 65%.
• ROOM humidity level has not reached 1%
or more above SET humidity level.
• Check filter message “CF” is flashing.
• Mineral buildup on filter.
• Bottle cap plunger missing post in bottom
of cabinet.
• Dirty filters.
• Air is entering water bottle.
• Right bottle contains water.
• Unit is not set up on a level surface.
(Float will not sense water at the front of
the cabinet.)
• Normal.
• Reservoir is empty.
• Filter may be dirty.
Remedy
• Check 120 volt power source.
• Press power button once to turn on.
• Raise SET humidity level if desired.
• Increase fan speed.
• Fill humidifier with water.
• Free float from obstruction.
• A SET humidity percentage
of 65% operates fan
continuously. Adjust SET
level between 25% - 60%.
• Continue to run until desired humidity
level is achieved. This may take up to 48
hours initially.
• Change to a fresh new filter.
NOTE: Local water purity varies from area
to area.
• Check orientation of bottles.
Reposition so that bottle cap plunger
(stem) is depressed by post in bottom of
cabinet.
• Change to fresh new filters
(HDC12).
• Check “Side-Fill Caps” and valve
assembly caps to ensure tightness.
• Check for leak in water bottle.
• Ensure gaskets for “Side-Fill Caps” are in
place.
The humidifier is designed so that right
bottle empties first.
• Position unit level. (Some carpet padding
may allow unit to sit lower in the front than
rear with the additional weight of water
bottles in the front of the cabinet. Install
caster pads under front casters (see page
5).
• No action required.
• Fill humidifier with water.
• Replace filter.
QUARKSP6647 HD14070:SP6647 .qxd 12/10/2009 3:39 PM Page 14
