Homech HM-AH004, User Manual

Ensure the         spring is 
secured properly to the 
tank allowing water to pass 
through to the base

     Spring stuck

     Rubber ring was not 
installed on tank cap

TROUBLESHOOTING GUIDE

1. If the information listed in the troubleshooting guide can’t solve your problem, please email 

    us at 

support@homech.net

.

2. Failure to keep this unit clean from mineral deposits may affect operation of this unit. 

3. Customer failure to follow these instructions may void the warranty.

Problem

Possible Cause

Solution

Unit not plugged in

No power from power outlet

No water in the water
reservoir

Ensure unit is properly 
plugged in

Try another power outlet

ON indicator does not light up

Ensure the        spring is 
secured properly to the tank 
allowing water to pass 
through to the base

1

Adjust the       water floater to 
a horizontal position and 
make sure it can rise up with 
water 

3

      Water floater stuck

3

ON indicator stays red

16

15

ON indicator will light up, 
but no mist or little mist 
is produced

Tank leakage

1

2

1

Mist height is low, damping 
surrounding desk or floor.
Condensation forms around 
humidifier or on windows 
and walls

Not enough water inside the 
tank

Refill and reinstall the water 
tank
Adjust to maximum mist
Check if current humidity is 
higher than preset humidity, 
reset humidity to a higher 
level
Remove the tank, empty 
the base & replace the 
filled tank on the empty 
base
Feel if air comes out from 
the nozzle, if yes, then clean 
water scale on the atomizer 
as instructed

Mist level is set too low

Preset humidity is set too low

The base might be overfilled

Mineral buildup on atomizer

Check for possible cracks in 
the tank, replace if 
necessary 

Tighten the tank cap

Check the tank cap for 
rubber ring, rubber cap 
and spring, contact us if 
any is missing

Tank may be damaged

Tank cap is not tightened 
securely

1. Check if the room is too 
     humid, adjust to lower 
     mist, 40%-60% works best
2. Open door and windows, 
     or change to a larger 
     room
Humidifier should be 
placed on a hard flat 
surface, 2 feet above the 
floor, 12 inches away from 
the wall. Point Mist Outlet 
away from wall or window

Raise the room temperature 
to 25°C/77°F

Mist level is set too high for 
the room size

Air inlet is blocked

Low indoor temperature 
leads to liquefaction

3

2

1. Spring

2. Rubber ring

3. Water floater

1