Fehom YDA-858F User manual

Please read the manual carefully
before using the unit
YDA-858F
USER MANUAL
Commercial Dehumidifier
www.fehom.com

Thank you for purchasing our dehumidifier.
Fehom wishes that our products and services can bring convenience to your
work and life.We highly recommend that you keep the manual for reference if
you encounter unexpected events using the unit.
Please read the manual carefully to ensure proper use of the dehumidifier.
Our dehumidifiers are widely used in family bedrooms, bathrooms,
basements, offices and storage rooms, etc.
The dehumidifiers from provide quick and efficient operation to Fehom
reduce room's humidity and bring you a healthy and comfortable life.
If there is any problem of the product, please contact Fehom Customer Service
at with your Purchase Order ID to help you address the [e-mail]
problem more effectively.
FOR CUSTOMERS
TO ACCESS CUSTOMER SUPPORT FASTER

To prevent any internal damage, it is very important to
keep refrigeration units (like this one) upright throughout
their journey.
Please leave it standing upright and outside the box for
24 HOURS before plugging it in.
BEFORE FIRST USE:

TABLE OF CONTENTS
Safety Instructions
Parts Description
Common Faults and Solutions
Warranty & Contact Us 16
15
14

For your safety, please read the manual carefully and keep the manual before
you use the manual for reference.
Please use this product according to the instructions of installation and
operation of this manual.
Before cleaning the dehumidifier, turn off the power and unplug it from the power
outlet.
Please do not place the machine near any heat source or flammable goods.
Always keep the machine on even surface, instead of placing on uneven or
slopping ground.
When the power cord is damaged, it must be replaced by the qualified technician
approved by our company.
When using the dry clothes function, the clothes should be kept at least 40cm away
from the air to prevent water from entering the outlet and damage the machine.
The machine power wiring must be in accordance with national wiring rules, and,
power line should be connected to the reliable external Earth Line.
The fixed wiring of the machine connection must be equipped with an all-pole
disconnect device (air switch) with at least 0.118-inch distance of electric shock.
This appliance can not be used by children aged under 8 years old and persons
withreduced physical, sensory or mental capabilities or lack of experience and
knowledge unless they have been given supervision
or instructions concerning use of the appliance in
a safe way and understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made
by children without supervision.
When using dehumidifier, other objects
surrounding the machine need to be kept at
least a distance of 7.9 inches (20cm) as shown
in the picture on the right:
Safety Notes:
SAFETY INSTRUCTIONS

Drainage Hose Outlet
PARTS DESCRIPTION

Button Instructions Power Button
Press to turn the machine
on or off
Up Button
Press to set the humidity up
Down Button
Press to set the humidity down
Timer Button
Press to initiate the auto-start
and auto-stop feature
Speed Button
Press to control the fan speed
1. Control Panel

2.Setting
Setting Humidity
The humidity level can be set within a range of 10%RH to 99%RH in 1%
increment.
● -When it starts to work, it will first automatically detect and show the room's
humidity.
● -Press " UP " to make the humidity increase by 1%RH. Press "DOWN" to
make it decrease by 1%RH.
● -When the humidity level is higher or drops to the level you have set, the
dehumidifier will automatically begin to work or stop.
● -When the humidity level is set at 30%RH, the dehumidifier will work at
continuous dehumidifying mode.
Timer Setting
This TIMER setting function is designed for you to set a time to turn off or turn
on the machine, automatically by the timer.
Press the " TIMER " button, you will enter " TIMER " setting mode: Press
" UP " button to select the timer increase by 1 hour, press " Down " button to
decrease by 1 hour.
Long press " UP " or " DOWN " button for seconds can continuously set a time
within the range of 1 to 24 hours, it can be reset after invalid.
After no operation for seconds, it will automatically exit the TIMER setting
mode.
If the time is set to 00, this is called the invalid time.
When no TIMER setting, " 188 " on the screen will display the current
temperature; when you successfully set the " TIMER ", " 188 " will display
the remaining setting time, and if you press the " TIMER " again for seconds,
the remaining time will display the current temperature and turn back to the
remaining time automatically after seconds.

Speed Button
You can press to the " SPEED " button to select either High or Low fan speed.
High fan speed will result in quicker moisture removal.
Set the speed high for maximum moisture removal. When the humidity has
been reduced and quiet operation is more preferred, you can set the fan
speed back to Low.
Overflow Protection
When the water tank is full of water, the machine will turn off automatically.
The indicator light " " will flash. After you empty the water from the water
tank, the indicator light " " will turn off. The machine will restart to work.
Auto Defrost
When the dehumidifier is running at a lower temperature, the system will
automatically determine whether there is a presence of frost. If any frost
exists, it will defrost automatically.
Defrost Action
The fan runs at high wind speed when the compressor stops, and the screen
displays the defrosting symbol. When defrosting, it is in high wind speed
mode, but after defrosting, it will return to previous setting wind speed.
Action Description
Power on:
Compressor starts after the fan has worked for a few seconds (tens of
seconds when the first power-on).
Power off:
Compressor shuts down at once, and the fan will stop after a few seconds.
(When other malfunction occurs, or the humidity reaches desired level, the fan
will stop after tens of seconds).
The compressor features a " 3 minutes delay protection function " , when the
dehumidifier is powered, the compressor can only start after 3 minutes after
its last shutdown.

When the machine is powered on, the fan indicator " " will flash.
When the environment humidity reaches the setting value and stop
dehumidification (just to maintain the setting value), the " " indicator
and humidity figure will flash on the screen.
When the machine is running, the " " indicator will display
continuously from left to right in order.
When running at low wind speed, the fan indicator will rotate in a lower
speed, but in a high speed when high wind speed.
After successfully set the TIMER, the " " will light up , otherwise, it will
be off.
When defrosting, the " " icon will flash , but go out vice versa.
If the water tank is full , the FULL TANK indicator will light up.
Otherwise, it will be off.
3. Display Status Description

4.Faults & Protection Codes:
The water tank is full, empty the tank
1. When the E1, E2, or E4 occurs, both the compressor and fan will not stop,
but only signal the alarm and display the alarm code. If you power off the
machine, it can be restarted after powered again.
2. When one of the above malfunctions occurs, the buzzer will alarm for a
few seconds. Press any key during the alarm to release the alarm sound.
If the malfunction is still present, please don't hesitate to contact Fehom
Customer Service email: for [e-mail]
Attention

5. Empty The Water Tank
Two ways are available to remove the collected water.
Use The Water Tank
When the water tank is already full, the WATER FULL indicator will light up,
the dehumidifier will automatically shut down until the tank has been
emptied and placed back to the unit.
Door
Water Tank
Open the door
Take the water tank out from
the bottom
Empty the water tank Put the water tank back in place,
and close the door, the WATER
FULL indicator will go out.
Note:
If the water tank is dirty, just use cold water or warm water to clean it. Do not use
detergent, steel wool, chemically treated dust cloth, gasoline, benzene, thinner
or other solvents. Otherwise, it may damage the water tank and cause it to leak.
Ways to Empty the Water Tank

Remove the power supply, open the door, take out the water tank, insert the
water hose into the continuous drainage port, put the water tank back in
place, and close the door. Connect the power supply to start the operation.
The outlet of the water hose should be lower than the continuous drainage
port by more than 3.9 inches, and the water hose cannot be bent.
(Note: The diameter of continuous drainage port is 0.63 inches.)
6.Continuous Drainage
Take the water tank out from the
bottom, insert the water hose into
the continuous drainage port.
.
.

Please use a soft and slightly wet textile or cloth to clean it.
3.Slowly insert the filter back to the machine body.

The list includes most of the common cases, but not the results of defective
unit, crafts or materials in the unit.
If all troubleshooting steps have been exhausted and the issue is still
occurring, please feel free to reach out to Fehom Customer Seryice to get
further assistance.
Is the Full Tank indicator blinking?
This product does not apply to
over hot or cold environment, the
machine will automatically enter
the protection mode. It is a normal
phenomenon.
When running under lower
ambient temperature, the machine
will automatically defrost, which is
a normal phenomenon. It will
restart dehumification again until
the defrosting process finished.
It is normal the compressor
ceases while defrosting process.
Wait until the process finished, it
will restart dehumidification again.
Is the room humidity lower or
reaching the preset humidity
level?
(When the room humidity has
reached the preset level, the
dehumidifier will enter Standby
Mode and the indicator on LCD
will flash. )
Please set the humidity by 5%RH
than the room humidity or set the
humidity to 30%RH.
This is to prevent the frequent
start of the machine. Does the
machine stop working just now?
The dehumidifier is designed to
work in the humidity range of 30%-
80%. Above or below this range, it
will not work.
, it

Room temperature is too low, or
below 41℉ (5℃): The machine
will not work or undergo poor
dehumifying efficiency in low
temperature.
Please wait until the temperature
rises to above 41℉ (5℃) or higher.
Clean up the dirt or lint on the air
outlet and intake.
Continuous Mode
Do Not set the humidity too low.
Typically, 40-50% are good for
use.
Please check whether the packing
bag of the filter had been removed
and the filter has been installed
correctly.
The
to
to
levelly.
Do not allow enough time to
remove the moisture.
Please leave about 20cm (7.9
inches) around the product.

Connect the hose with the
drainage port tightly.
The water tank has not been
installed properly.
The float of water tank has been
stuck.
Re-install the water tank properly.
Move the float and let it swing
freely.
If the dehumidifier is still not working properly as expected and the
troubleshooting steps or solutions above may not resolve the issue, please
unplug the power and shut down the dehumidifier, then contact Fehom
Customer Service at . [e-mail]
P.13

Do not insert thin rods and hard
objects into the machine body to
avoid malfunction and danger.
When cleaning the dehumidifier,
please use the wet textile to
wipe gently, do not shoot the
water directly.
Please clean the filter every two
weeks (do not use hot water
above 104°F, alcohol, gasoline
or toluene.)
When continuous drainage, the
drain hose must be placed
horizontally, without
unevenness and winding.
After cleaning the filter, please
do not dry it under direct
sunlight, in case deformation.
P.14

P.15
YDA-858F