4 www.dimplex.com
MAINTENANCE
WARNING: Disconnect power before attempting any main-

or damage to persons.
Filling the water tank

hear 2 audible beeps, follow these steps.
CAUTION: 

1. Turn the On/Off switch to the off position (0)
2. 
and place them carefully on the ground.
3. -
wards.
4. 
! NOTE: Normal tap water can be used in the Optimyst®
as long as the tap water is not considered to be hard water.
In the event your tap water is hard, you may use softened

the water reservoir. (The addition of additional salt should
only be when you notice that the unit is not producing mist as

5. Screw the cap back on, do not overtighten.
6. 
7. 
into position.
8. Turn the On/Off switch to the off position (I).
If you do not intend on using the unit for longer than 2 weeks,
empty and drain the unit of water, and dry all of the water con-
taining components.
Replacing the Light bulbs

may be that one or more of the light bulbs have burnt out.
CAUTION: Allow at least twenty minutes for light bulbs to
cool before touching bulbs to avoid accidental burning of skin.
Light bulb requirement: 45W, 12VAC halogen bulbs type MR
16. Contact Dimplex Technical Service at 1-888-346-7539 for
replacement bulbs.
1. -

cover.
2. 
observe which lamp needs to be changed.
3. Turn the unit off, and unplug the cassette.
4. Leave the appliance for 5 minutes to allow the lamps to
cool down before removing them.
5. 
upwards and place in a sink.
6. Remove the defective bulb, by gently lifting vertically and
disengaging the pins from the lamp holder.
7. Carefully insert the two pins of the new bulb into the two

8. 
into position.
Cleaning
It is recommended that all of the components that contain
water are cleaned with soap and water on a biweekly basis.

items/areas, i.e. the transducer.
CAUTION: Do not put plastic components in the dish-
washer.
Filter Cleaning

clean and dried on a towel before reinstalling.
! NOTE: 
facing the front of the cassette.
Surface Cleaning
Use a warm damp cloth only to clean surfaces of the cassette.
Do not use abrasive cleaners.
! NOTE: If you need to move the unit ensure that all of the
components that contain water have been emptied before re-
locating.
Servicing
Except for installation and cleaning described in this manual,
an authorized service representative should perform any other
servicing.
Figure 3
Top
Cover
Transducer
Emitter
Wire Slot
Retaining
Tab

Housing
Water Tank
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