Holmes HM630-U Owner'S Manual Download Page 2

REPLACING THE FILTERS

Through normal use, waterborne minerals and sediment

become trapped in the wick filter. The harder your water,

the greater the amount of minerals in the water, and the

more often you will need to change your filter.
You will be able to monitor the life of the filter in your

humidifier by checking the FilterCheck

®

Indicator. 

NOTE: 

After 60 minutes of use,

FilterCheck

®

Indicator will move

and indicate your filter condition. 

A brand new filter will register in

the section reading GOOD filter.

After frequent use of your

humidifier, the FilterCheck

®

Indicator will let you know when

the filters need to be changed, see Figure 2.

When the needle is in the CHANGE section, this means

the proper amount of moisture is not getting into your

air due to the excessive minerals and sediment that have

become trapped on your filters. At this point, you should

replace your filter. It is important to change your filter as

indicated to obtain stated performance level.

To replace the filter, follow the steps below:

1. Turn the unit off and disconnect from the electrical

outlet.

2. Remove the tank from the housing.

3. Unlock the housing from the base by turning the lock

knob to the unlocked position. 

4. Lift the housing straight up and place to the side. 

5. Unlock the wick holder from the base by turning the

lock knob to the unlocked position. 

6. Remove the wicks from the wick holder. 

7. Follow the weekly cleaning instructions.

8. Insert new filters into the wick holder and lock the

wick holder back onto the base.

9. Replace the housing onto the base and lock it into place.

10. Fill the tank and place back into housing.

11. Repeat Operating Instructions. 

It will take about 30 minutes for the humidifier to reach

maximum output. 

You can purchase replacement filters (model 

HWF100-UC2/HWF100 – 2 filters) at your local retailer, by

calling 1-800-546-5637, or by visiting

www.holmesproducts.com. It is recommended that a

replacement filter is purchased for uninterrupted use. 

CLEANING AND MAINTENANCE INSTRUCTIONS

Humidifiers provide comfort by adding moisture to dry,

heated indoor air. To benefit most from the humidifier and

avoid product misuse, follow all instructions carefully.

Please note that this is an electrical appliance and requires

attention when in use.
In addition, if you do not follow the recommended care and

maintenance guidelines, micro-organisms may be able to grow

in the water within the water tank. You must routinely follow

the cleaning procedures that follow in order to ensure proper,

efficient operation of your humidifier. Proper maintenance and

cleaning is essential to the continued performance of your unit

and the avoidance of algae or bacteria build-up.

DAILY MAINTENANCE

1.  Be sure the unit is OFF and is disconnected from the

electrical outlet. 

2.  Remove the housing and the tank from the

humidifier and place in sink or tub. 

3. Carry the base of the unit to the sink, remove the

wick, place in sink, drain any remaining water and

rinse thoroughly to remove any sediment or dirt.

Wipe clean, and dry with a clean cloth or paper

towel. 

4. Drain the water from the tank into the sink and rinse

tank thoroughly. Wipe clean, and dry with a clean

cloth or paper towel.

5. Put filters back into wick holder making sure the

rivet attaches to the holder. Lock the wick holder

back into place. Replace the housing and lock it into

place.  Refill the tank with cool tap water as

instruction earlier in the filling instructiosn.  Do Not

overfill.

6. Follow Operating Instructions.

NOTE:

The Tray is dishwasher safe (TOP RACK ONLY)

for easy cleaning.

22. Do not plug in the cord with wet hands: electric shock

could result.

23. Do not pour water in any openings other than the

water tank.

24. To prevent damage to surfaces, do not place humidifier

under overhanging surfaces. 

25. NEVER operate unit without water in the tank. 

26. Do not move unit after it has been used until unit

cools completely. 

27. Use both hands when carrying full tank of water. 

PLEASE READ AND SAVE

THESE IMPORTANT SAFETY

INSTRUCTIONS

Consumer Safety Information
NOTE:

This is an electrical appliance and requires

attention when in use.

NOTE:

If moisture forms on the walls or windows of the

room, turn off the humidifier. The room already has

plenty of humidity and additional moisture may cause

damage.

NOTE:

DO NOT block air inlet or outlet.

Cord and Plug Installation Safety Instructions

The length of cord used on this appliance was selected to

reduce the hazards of becoming tangled in, or tripping

over a longer cord. If a longer cord is necessary an

approved extension cord may be used. The electrical

rating of the extension cord must be equal to or greater

than the rating of the humidifier (refer to the rating

artwork placed on the humidifier). Care must be taken to

arrange the extension cord so that it will not drape over

the countertop or tabletop where it can be pulled on by

children or accidentally tripped over.

HOW COOL MIST WORKS

Your Holmes

®

Cool Mist humidifier draws dry air through

the rear air intake grill area. This air is then passed

through a moisture–laden wick filter, which retains the

minerals and deposits in the water. The resulting moist

air is directed back into the room from the top air grill.

NOTE:

This humidification system provides a cool,

invisible moisture output. It is normal not to see the mist.

NOTE:

A humidity level below 20% can be unhealthy

and uncomfortable. The recommended humidity level is

between 40%-50%.

PRE-OPERATING INSTRUCTIONS

1. Be sure the humidifier is switched to OFF and the

unit is disconnected from the electrical outlet.

2. Select a location for your humidifier, on a flat

surface, about 4 inches (10 cm) away from the wall.

DO NOT place the humidifier on a finished floor or

near furniture, which can be damaged by moisture

or water. Place on a moisture-resistant surface.

FILLING THE WATER TANK

1. Remove the tank from the housing of the humidifier by

grabbing the handle of the tank and pulling forward. Lift

the tank out of the housing and bring to the faucet. Turn

the tank upside down and twist off the tank cap by

turning counter clockwise. Fill tank with cool, fresh tap

water. DO NOT fill with warm water as this may cause

leaking. Replace the cap on tank FIRMLY.

2. When full, carry the tank to the humidifier and place

it into the housing. There is a locating tab located on

the tank base for easy guidance. The tank holds 1.3

gallons of water. The tank will immediately begin to

empty into the base.

3. Plug the power cord into a 120V AC electrical outlet.

OPERATING INSTRUCTIONS

Your humidifier is equipped with a technologically advanced

AccuSet Plus

TM

Digital Humidistat. You can set the humidifier to

run continuously in manual mode or set the AccuSet Plus

TM

Digital Humidistat to your desired humidity setting. The

AccuSet Plus

TM

Digital Humidistat will automatically turn the

humidifier ON or OFF, depending on the preset comfort level.

The comfort level ranges between 35% and 65% relative

humidity. 

Manual Mode Instructions:

1. Plug the humidifier into a 120V AC electrical outlet.

2. The display will show the current room humidity.

P L E A S E   R E A D   A N D   S AV E   T H E S E

I M P O R TA N T   S A F E T Y   I N S T R U C T I O N S

F E AT U R E S   -   O P E R AT I O N S

F E AT U R E S   -   O P E R AT I O N S

When using electrical appliances, basic safety precautions

should always be followed to reduce the risk of fire, electric

shock, and injury to persons, including the following: 
1.  Read all instructions before using the appliance.

2.  To avoid fire or shock hazard, plug the appliance

directly into a 120V AC electrical outlet.

3.  Keep the cord out of heavy traffic areas. To avoid fire

hazard, NEVER put the cord under rugs or near heat

registers.

4.  DO NOT place humidifier near heat sources such as

stoves, radiators, and heaters. DO locate your humidifier

on an inside wall near an electrical outlet.  The humidifier

should be at least 4 inches (10 cm) away from the wall

for best results.

5.  NEVER place humidifier in an area where it is accessible

to children. NEVER use humidifier in a closed room,

particularly where a child may be sleeping, resting, or

playing (a closed room may result in excessive

humidity).

6. 

WARNING:

Do not attempt to refill humidifier without

first unplugging the unit from its electrical outlet. Failure

to heed this warning may cause personal injury.  Be

sure to unplug the unit by pulling on the plug and not

the cord.

7.  Never place anything over moisture outlet when the

unit is running.

8.  NEVER drop or insert any object into any openings.

9.  DO NOT operate any appliance with a damaged cord

or plug, after the appliance malfunctions, or if it has

been dropped or damaged in any manner.  Return

appliance to manufacturer for examination, electrical

or mechanical adjustment, or repair.

10. Use appliance only for intended household use as

described in this manual. Any other use not

recommended by the manufacturer may cause fire,

electric shock, or injury to persons. The use of

attachments not recommended or sold by the

manufacturer may cause hazards.

11. DO NOT use outdoors.

12. Always place humidifier on a firm, flat, level surface.

A waterproof mat or pad is recommended for use

under the humidifier. NEVER place it on a rug or

carpet, or on a finished floor that may be damaged

by exposure to water or moisture.

13. DO NOT allow the Moisture Outlet to directly face the

wall. Moisture could cause damage, particularly to wall

paper.

14. Humidifier should be unplugged when not in use.

15. NEVER tilt, move, or attempt to empty unit while it is

operating.  Shut off and unplug before removing the

water tank and moving the unit.

16. This humidifier requires daily and weekly maintenance

to operate appropriately. Refer to daily and weekly

cleaning procedures. Use only cleaners and additives

recommended by the manufacturer.

17. NEVER use detergents, gasoline, glass cleaner, furniture

polish, paint thinner, or other household solvents to

clean any part of the humidifier.

18. Excessive humidity in a room can cause water

condensation on windows and some furniture.  If this

happens, turn the humidifier OFF.

19. Do not use humidifier in an area where humidity

level is in excess of 50%. Use a hygrometer,

available at your local retailer or through the

manufacturer, to measure the humidity.

20. DO NOT attempt to repair or adjust any electrical or

mechanical functions on this unit.  Doing so will void

your warranty. The inside of the unit contains no user

serviceable parts. All servicing should be performed

by qualified personnel only.

21. Never place housing under water flow or immerse in

liquids.

NOTE:

The display range is 21% - 90%. If your room

humidity level falls below 21%, the unit will display 21. If

your room humidity level rises above 90%, the unit will

display 90.

3. To start the unit, push the        button twice within 3

seconds for the HIGH (3) manual setting.

4. Press the button again for the MEDIUM (2) manual

setting and again for LOW (1). After the selection is

made, the display will return to show the current room

humidity.

5. To stop the unit, press and hold the button for two

seconds, or keep pressing the button until the display

reads OFF (OF). 

AccuSet Plus

TM

HUMIDISTAT INSTRUCTIONS

To take advantage of the AccuSet Plus

TM

Digital Humidistat,

press the 

button until the speed is set in either the AUTO

HIGH (A3), AUTO MEDIUM (A2) or AUTO LOW (A1) setting.

Then adjust the set humidity by using the up and down

buttons. Humidity will increase or decrease in increments of

5%. When the humidity level is set, the display will return to

show the current room humidity. When the room humidity

level rises above the set humidity, the humidifier will stop.

When the humidity level drops below the set humidity, the

humidifier will turn on automatically. 

NOTE:

Allow up to 30 minutes for the filter to fully

absorb water and for the unit to produce moisture. 

NOTE:

The AccuSet Plus

TM

Humidifier has memory. This

means that when you turn the unit back on, it will be at

the last setting the humidifier was set at. 
If you do not plan to use the humidifier for two or more days,

make sure any residual water is drained from the water tank,

base and wick filter to prevent algae or bacteria growth.

16 HOUR AUTO ON/OFF TIMER
INSTRUCTIONS

The Auto On/Off timer will allow the user two options, to

set a time to turn the unit off or to set a time to turn the

unit on. 

Auto Off Timer

While the unit is running, the off timer can be activated

by holding down the up and down buttons simultaneously

for 2 seconds, the screen will flash 00 and the up and

down arrows can be pushed to adjust the timer up to 16

hours in increments of one, once 16 hours is reached, the

next push of the timer button will cycle back to 00 hours.

When the timer is activated a LED will indicate that the

timer is on. The unit will then shut off after the timer

expires (in its current setting). While the unit is running,

the timer should stay on even if other modes are being

changed. The timer should only be deactivated if the unit

is turned off.

Auto On Timer

While the unit is off, the up and down buttons are

pressed simultaneously for 2 seconds and the display will

flash 00 the up button may then be pushed again to

increase the hours to turn on (in its last setting) from 

1-16 in increments of 1 hour. The unit will then come on

after the timer expires, if the unit is then turned on, the

timer will be deactivated. There will be a LED to indicate

the timer is activated. Once 16 hours is reached, the next

push of the timer button will cycle back to 00 hours .

AccuSet Plus

TM

Remote Instructions 

(For HM630RC only) 

1. Insert 2 AAA batteries into back of remote control. 

2. Press the MODE/OFF button on remote to begin

operation. 

3. Use the remote to control the same features as the

base unit. 

NOTE:

The timer function can only be activated on the base

unit. It cannot be activated via the remote control. 

NOTE:

Do not mix new and old batteries. Do not mix

alkaline, standard (carbon-zine), or rechargeable 

(nickel-cadmium) batteries. 

R E P L A C I N G / C L E A N I N G

C L E A N I N G   A N D   M A I N T E N A N C E

THIS APPLIANCE HAS A POLARIZED PLUG (one blade is wider than the

other). To reduce the risk of electric shock, this plug is intended to fit in

a polarized outlet only one way. If the plug does not fit fully in the

outlet, reverse the plug. If it still does not fit, contact a qualified

electrician to install the proper outlet. 

DO NOT ATTEMPT TO MODIFY THIS PLUG OR DEFEAT THIS 

SAFETY FEATURE IN ANY WAY.

Figure 2

Figure 1

A. Tank

B. Tank Handle

C. Base 

D. Humidifier Housing

E. Control Panel

F. FilterCheck

® 

Indicator

D

B

A

E

F

C

HM630_630RC_08EM2.qxd:HM630/630RC08EM2  5/27/08  3:39 PM  Page 2

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