Honeywell HWM-910 Series - Manual (Page 9)

If the unit stops producing mist, even while there is water in the tank, the mineral
build-up may need to be removed from the heating element of the Power Unit.
How often you perform this special maintenance depends upon the hardness of the
water you are using and how quickly mineral deposits form on the interior surfaces
of the humidifier.
DO NOT clean the heating element under running water. Doing so may cause
damage or personal injury.
1. Unplug the humidifier. Allow at least 10 minutes for the unit to cool.
2. The heating element is on the bottom of the Power Unit. To access it, remove
the Power Unit by pulling on the Latch (found under the Water Tank) and lifting
the Power Unit (Fig. 6).
3. Turn it upside down. BE SURE IT HAS COOLED
SUFFICIENTLY.
4. Use a non-metallic brush or a soft, dry cloth to wipe
the outer surfaces of the heating element (Fig. 7).
Some deposit may remain, but should not interfere
with the operation of the unit.
END-OF-THE-SEASON CARE AND STORAGE
• Follow WEEKLY CLEANING instructions when the humidifier will not be used for at
least one week or more, or at the end of the season.
• Dry the humidifier completely before storing. DO NOT store with water inside the
Removable Tray, Base, or Water Tank.
• Pack the unit in its original carton and store in a cool, dry location.
• Before next use, remember to clean the humidifier.
CLEANING THE HEATING ELEMENT
Fig.7
Heating
Element
HU4078.01 HWM-910/910C OM 8/6/01 3:33 PM Page 8