NUK 78103 Operating Instructions Manual Download Page 6

6

TROUBLESHOOTING

Trouble

Probable Cause

Solution

Water leaks 
from tank

Tank rubber ring is missing

Remove tank cap and replace or reposition ring

Cap is not tight enough

Tighten the cap

Tank water is hot

Fill with cool, fresh tap water only

Crack in tank

Hot water will cause tank to pressurize 

Fill with cool water only

Tanks will crack if hit or dropped

Handle tank with care

Film on tank

Mineral deposits

Clean/disinfect tank as instructed in Weekly Cleaning 
instructions

Fan on, but 
no mist

Volume is too low 

Turn up volume control

Might be running out of water

Fill tank with cool water

There may be scale build up on 
transducer 

Clean transducer (refer to the Weekly Maintenance 
section)

FREQUENTLY ASKED QUESTIONS

Question

Answer

What are the variables that affect 
run time?

The estimated run time for this humidifier is based on average room 
conditions. The actual run time of your humidifier is dependent on numerous 
variables such as:

• Air exchange in the room where the humidifier is placed.  
• Room construction where the humidifier is placed.
• Temperature of the room where the humidifier is placed.  
• Humidity levels in the room where the humidifier is placed.
•  Movement of occupants and the opening and closing of doors  

in the room where the humidifier is placed.

• Home furnishings in the room where the humidifier is placed.
•  The humidifier’s level of moisture volume.  Lower moisture volume  

will lead to longer run time.

How do I remove film on water tank?

See Daily Maintenance instructions. Regular cleaning is recommended.

How can I extend the run time?

Run your unit on the lowest setting. 
Fill the tank all the way full, place it on the base. Let the water empty into 
the base until it stops bubbling, then refill the tank full again. This ensures 
maximum water capacity and will extend run time. 

Summary of Contents for 78103

Page 1: ...Cool Mist Ultrasonic Humidifier Operating Instructions PLEASE READ AND SAVE THESE IMPORTANT SAFETY INSTRUCTIONS Model 78103...

Page 2: ...er 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 dama...

Page 3: ...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 ex...

Page 4: ...cer E will automatically shut off and the fan will keep running to dry any residual water out of the base and chamber 3 Once the tank A is empty turn the Mist Volume Control knob C all the way to the...

Page 5: ...Refill with cool tap water Do not overfill WEEKLY MAINTENANCE To Remove Scale 1 Repeat steps 1 3 in the Daily Maintenance section 2 Clean all surfaces with a soft brush Gently scrub the area around t...

Page 6: ...run time for this humidifier is based on average room conditions The actual run time of your humidifier is dependent on numerous variables such as Air exchange in the room where the humidifier is plac...

Page 7: ...lation The product generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications Howeve...

Page 8: ...or representations express implied statutory or otherwise NUK USA LLC shall not be liable for any damages of any kind resulting from the purchase use or misuse of or inability to use the product incl...

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