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10. After base is totally cleaned and dried, replace mineral absorption pad. Place
steam dome on base by aligning its slots with tabs in base. (You may have to
reposition steam dome to other set of tabs, because it will only fit one way.)
Rotate steam dome clockwise until it locks. Place steam diffuser on base so
that the slots in steam diffuser line up with tabs on the base. Rotate steam
diffuser clockwise until it locks in place.
11. Replace tanks. Plug in the unit and resume normal use.
CHANGING THE UV GERMICIDAL BULB
1. If the “REPLACE UV BULB” indicator illuminates during normal use, it is time
to change the UV germicidal bulb, which is a special 3.5W bulb.
2. Turn the POWER switch to the “OFF” position, unplug it and allow it to cool.
3. Remove the water tanks from the
base of the humidifier. Remove steam
diffuser and steam dome by rotating
them counterclockwise and lift up.
4. Place the base of the humidifier over
the sink and tilt the unit to remove any
remaining water.
5. Carefully turn the base of the humidi-
fier over and place it upside
down on a flat level surface. You will
see a door at front of unit that is
closed with two Phillips head screws.
6. Using a Phillips head screwdriver, carefully turn the screws counterclockwise
until the screws separate from the door.
7. Open the door, by pulling forward.The UV germicidal light bulb will be visible.
Pull the door out the minimum amount to have access to unscrew bulb from
socket.
8. Take a replacement 3.5W UV germicidal bulb that you purchased from
Slant/Fin Corporation or another supplier and change the bulb. To prolong
the life of the bulb, limit your direct contact with the glass of the bulb by using
a cloth or tissue to screw it into place.
9. When the new bulb is in place, close the door and replace the screws by
using your Phillips head screwdriver and rotating them clockwise until they
are just tight.
DO NOT OVER TIGHTEN.
10. DO NOT turn power on, while UV lamp door is open, and DO NOT view illu-
minated bulb directly because eye damage may occur.
11. Turn the unit upright, place the water tanks on top of the base of the humidifi-
er, plug the unit in, and turn the POWER switch to either the LO or HI posi-
tion. The “REPLACE UV BULB” indicator should no longer be lit.
IMPORTANT NOTE: Even though you will not receive maximum germicidal effects,
you can still use your GF-300 and GF-350 humidifier until the replacement bulb
arrives.
STORAGE TIPS
If you do not plan to use your humidifier for an extended period of time, such as
during the summer months, it is important that you follow these instructions to
help prevent problems from developing in the unit.
1. Clean your humidifier as instructed in the section titled, “Cleaning and
Maintenance”.
2. Make sure all water is emptied from the tanks and the hot and cold water
reservoirs.
3. Dry your unit thoroughly.
4. Leave the tank caps off to expose the tanks to air.
5. Pack your humidifier in its original carton and store it in a cool, dry place.
SERVICE
DO NOT attempt to repair this humidifier yourself. For repairs covered under
the warranty, contact Slant/Fin by telephone or mail for a Return Authorization
Number.
TROUBLESHOOTING
TROUBLE POSSIBLE CAUSES SOLUTION
Unit does not mist Unit is not plugged in Plug in unit
Power failure Check circuit breaker
Water tanks empty Remove and refill
Power switch not turned on Turn on switch to LO or HI
Unit not reset after refilling tanks Reposition water tanks
Water tank not properly Reposition water tanks
located on base unit
Humidity level set is achieved Turn Relative Humidity
Control to higher setting
Using distilled or treated water Add “pinch” of table salt
which does not contain enough
ions
Only one tank empties Move unit to level surface.
Raise end with full tank.
Water leaks from unit Drain cap, drain cap gasket, Tighten cap.
tank cap or tank cap Replace tank cap
gasket is missing or improperly or reposition cap
positioned gasket.
Moist air output low Mineral buildup in hot water Clean unit as per
reservoir instructions.
Refil lindicator light on Water level is below water Refill water tanks
level probes and mount tanks on base
Water level probes Clean probes per
are covered with film cleaning instructions
Mineral buildup in hot water Clean unit per
reservoir cleaning instructions
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