De'WOODS MDH-30A User Manual

Troubleshooting

Before contacting the manufacturer or agent for service, please check for
the following conditions:

Problems

Possible Cause

Corrective Action

Unit fails to
operate

1. Power “off”

2. Power Cord unplugged

3. Water tank not fitted

correctly

4. Water container is full

5. Defrosting

 Switch Power “On”

 Connect to electrical socket

 Re-position water tank

 Empty water tank

 After defrosting , the unit

will restart.

Moisture
removal
decreased

1. Choked/ Dirty air filter

2. Obstacles in air outlet or

in air inlet

3. Humidity setting high

 Wash air filter

 Remove obstacles or

Relocate unit elsewhere

 Reset humidity setting on

control panel

Unit Noisy
Water spill

1. Unit on uneven floor

2. Blocked filter

 Reposition unit

 Wash air filter

E1

Temperature sensor error

 Replace sensor

E2

Humidity sensor error

 Replace sensor

E3

1. Motor fault

2. Compressor fault

3. Refrigerant leak

 Contact agent

Technical Specifications

Model No

MDH-30A

Power Supply

220-240V/ 1Ph/ 50Hz

Capacity (30*C80%RH)

30L/day

Power Input, Max.

460W

Compressor type

Rotary

Refrigerant

R410A

Water Tank capacity

6.5 Litres

Operating Temp.

5*C – 35*C

Net Weight

18 Kg.

Dehumidifier

Dehumidifier

model

model MDH-30A

Please read this instruction manual carefully before you use your dehumidifier,

Contents

 INTRODUCTION

 IMPORTANT SAFETY INSTRUCTIONS

 ILLUSTRATIVE DIAGRAM - PARTS

 CONTROL PANEL

 OPERATING INSTRUCTIONS

 MAINTENANCE

 TROUBLE SHOOTING

 SPECIFICATIONS

INTRODUCTION

Congratulations on your purchase of this dehumidifier. Please read this
instruction manual carefully before you use this dehumidifier.

Drier air offers greater comfort at higher room temperatures. Lower humidity
reduces growth of mold, fungus and bacteria, while creating a more conducive
environment for storage of most applications.

Besides human comfort, Dry Air storage is used for numerous applications,
such as Strong rooms, Libraries, Electronic equipment rooms, Hospitals,
Pharmaceutical Storage Areas, Archives, Laboratories, and for other
hydroscopic material applications.

Bacteria & mould requires a high humidity to survive and multiply. If the
humidity is kept below 50 % RH, this will not occur.

Corrosion – Iron and steel will not rust if the air in contact with the surface has
humidity below 50 % relative humidity.

The air is laden with moisture, however the volume of moisture able to be
carried at any given temperature is limited (termed saturation vapor (content).
Beyond this, vapor returns to liquid (water) state from its gaseous state

Based on this principle, an air conditioner and a refrigerant dehumidifier cools
the air, lowering the saturation level and thereby promoting condensation.
However, an air conditioner is controlled by its thermostat which is less
effective and less efficient while a dehumidifier is controlled by a humidistat or
hygrostat which provides the desired humidity level.

Relative Humidity is a measure of how much moisture is in the air. It is the
ratio that indicates the ability of the air to absorb more moisture, expressed in
percent (%RH). For more information, see also specific/ absolute humidity.

The lower the percentage in RH, the lower the moisture content in the air and
the greater the air's ability to absorb more moisture. When the air reaches
100% RH, it reaches its saturation point and the water vapor turns to liquid,
forming droplets of condensation