Mitsubishi MJ-E16VX-S1 Service Manual
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Mitsubishi MJ-E16VX-S1 Service Manual

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DEHUMIDIFIER
SERVICE MANUAL
Model
CONTENTS
1. PRODUCT SPECIFICATIONS........................................................................................ 2
2. OUTER DIMENSIONS .................................................................................................... 3
3. EXTERNAL VIEW, PARTS AND DISPLAY SECTION................................................... 3
4. NAMES AND FUNCTIONS OF PARTS....................................................................... 4 ~ 10
5. TECHNICAL POINTS................................................................................................. 11 ~ 13
6. MAINTENANCE ......................................................................................................... 14 ~ 16
7.1 Wiring Diagram....................................................................................................... 17
7.2 Function List ....................................................................................................... 18 ~ 21
7.3 Timing Charts ..................................................................................................... 22 ~ 25
7.4 General Block Diagram ...................................................................................... 26 ~ 27
8.1 Troubleshooting flowchart ................................................................................. 28 ~ 29
8.2 Key Component Check Procedures ....................................................................... 30
8.3 Error Indications and Corrective Actions ............................................................... 31
8.4 Self-Test program and Execution Procedure .................................................... 31 ~ 32
9. DISASSEMBLY AND REASSEMBLY HINTS .......................................................... 33 ~ 36
9.1 Disassembly Procedures ....................................................................................... 33
10. CONTINUOUS WATER DRAINAGE ............................................................................. 37
PARTS CATALOG .......................................................................................................... 38 ~ 45
11. TROUBLESHOOTING ............................................................................................... 46 ~ 47
PRECAUTIONS ............................................................................................................... 48 ~ 50
MJ-E16VX-S1
ADVANCED AND EVER ADVANCING
MITSUBISHI ELECTRIC
Sold from 2005
2005
No.MJW-0501A

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Summary of Contents for Mitsubishi MJ-E16VX-S1

  • Page 1: Table Of Contents

    ADVANCED AND EVER ADVANCING MITSUBISHI ELECTRIC 2005 DEHUMIDIFIER No.MJW-0501A SERVICE MANUAL MJ-E16VX-S1 Model Sold from 2005 CONTENTS 1. PRODUCT SPECIFICATIONS..................2 2. OUTER DIMENSIONS ....................3 3. EXTERNAL VIEW, PARTS AND DISPLAY SECTION........... 3 4. NAMES AND FUNCTIONS OF PARTS............... 4 ~ 10 5.

  • Page 2: Product Specifications

    1. Product specifications Model MJ-E16VX-S1 Item Dehumidifying capacity 16.0 (30°C room temperature, 80% relative humidity) (liters/day) Laundry Single phase, 220-240V, 50Hz Power supply (phases,V,Hz) Power consumption (W) Operating current (A) Starting current (A) Color tone Blue (A) 570 × 384 × 187 Dimensions (H ×...

  • Page 3: Outer Dimensions

    2. Outer Dimensions 3. External View, Parts and Display Section Drain the water tank before use Installing your dehumidifier Make sure to leave some space around the Refrain from opening unit. doors/windows during operation <For use in close proximity to At least 50 cm At least a wall>...

  • Page 4: Names And Functions Of Parts

    4. Names and Functions of Parts Front Washable photocatalytic filter Control panel (hereafter: photocatalytic filter) (See box below for discussion) Pre-filter Air filter performance testing facility Japan Spinners Inspecting Foundation (tested under JIS L 1902 standards) Front panel Front Air Intake Do not block.

  • Page 5: Control Panel

    Control Panel ¡Swing louvre button ¡Power lamp ¡Lamps ¡Mode button Sets swing louvre Lights when unit is ON. Current mode lights For switching from direction or locks it into ¡Power button ¡Selection button one operating position Use this to switch the mode to another Switches modes unit ON and OFF.
  • Page 6 Modes ¡ EASY DEHUMIDIFYING ¡ LAUNDRY The unit operates intermittently controlling the The unit operates for 12 hours and automatically airflow to remove the damp feeling in the air. switches off. (There is no need to set the humidity level) When the room temperature is high, the blower operates to decrease the damp feeling.

  • Page 7: Air Purifier

    ¡ AUTO <To view set humidity level/ To set humidity level> The unit maintains the humidity level by ¡ Pressing the button once displays automatically controlling airflow and operating the set humidify level with the intermittently as necessary. All you have to do is set indicator.

  • Page 8: Drying Inside

    ¡ Drying inside The inside of the unit can be dried to suppress mildew growth on the cooler. On days the dehumidifier is used, drying inside is recommended. Automatic operation Manual operation To activate drying inside after every use. To activate drying inside by pressing a button. Press while the unit is on Press...
  • Page 9 [ Lamp Indicator ] Tank full light The unit automatically shuts down and indicates with the light and sound that the water tank is full. Empty the water tank. ¡ Tank full light lights (The unit beeps continuously.) ¡ Air flows stops (louvre stops) ¡...
  • Page 10 [ Timer Operation ] OFF timer operation ON timer operation The OFF timer can be set for 1 to 9 hours. The ON timer can be set for 1 to 9 hours. Set the timer when the power is switched on. Set the timer when the power is switched off.

  • Page 11: Technical Points

    5. Technical points 5.1 The technical points of the new products 1) Drying inside During dehumidification, moisture accumulates on the heat exchanger. If left, this can lead to mildew growth, which is circulated around the room with the air discharge. Drying inside starts automatically after operation, and dries any moisture inside the unit.

  • Page 12: How Does The Dehumidifier Work

    5.2 Operation and Performance Working temperature Defrosting Dehumidification is possible with a room The unit may display during operation and stop air temperature of 1 – 35°C. If the room temperature flow, followed by a change in the operating noise. The exceeds 35°C, however, the temperature inside the unit has stopped the airflow, and is melting internal frost unit will increase;...

  • Page 13: Performance Curve

    5.3 Coolant Circuit φ6.35 Compressor Coolant flow Dehumidifying φ5 Defrosting φ5 φ6.35 Tube temperature φ6.35 sensing thermistor Solenoid valve Intake Blow (closed when dehumidifying and open when defrosting) Capillary tube Humidity sensor φ5.0 × φ4.0 Room temperature sensing thermistor φ6.35 φ6.35 Capillary tube φ2.0 ×...

  • Page 14: Maintenance

    6. Maintenance Maintenance Do not use detergents, cleaning agents for heat exchange equipment, abrasive powders, chemically treated dusters, gasoline, benzene, thinners or other solvents, as they can damage the unit or the water tank, which may result in leakage. Cleaning Once every three months Water tank ·...

  • Page 15: Removing Water From The Tank

    Removing Water from the Tank The unit automatically shuts down and lights the Tank full lamp when the tank (approximately 4L) is full. Empty the tank. Remove the water tank. Reattach the tank lid and replace the water tank. Confirm that the lid is securely attached to the water tank, and...

  • Page 16: Replacing The Air Purifying Filter

    Empty the water tank and Photocatalytic filter for replacement wipe away any remaining ∞ Type: MJPR-10TXFT drops of water. ∞ Type code: 5C5 815 For these items contact your nearest Mitsubishi Electric dealer. Clean the pre-filter. Remove grit with vacuum cleaner Store the unit.

  • Page 17: Wiring Diagram And Block Diagram

    7. Wiring Diagram and Block Diagram 7.1 Wiring Diagram Control board Sensors (Humidity and room P201 P200 temperature sensing) P100 P101 Gray Run capacitor 1°C (defrost)/12°C (end) Gray Thermistor (Tube White temperature sensing) Blue Power supply board White Brown Power plug Stepping motor Gray Tank full switch...

  • Page 18: Function List

    7.2 Function List Operation mode Dehumidifying operation Compressor Blower Solenoid valve Swing louvre Power Selection Air Purifier Tank full Drying inside Humidity (set/current) Operation mode Swing area Swing monitor On/off timer Mildew guard Defrost Low temp Child lock Operation Auto Operation switch Selection Air purfier...
  • Page 19 <Operation Control> 1 Specifications shared at all operation modes The compressor and blower fan will operate for about 6 minutes after turning on the operation switch or activating the compressor, regardless of humidity or temperature levels. 2 Humidity set operation Compressor and blower fan operation will switch by current humidity and set temperature.
  • Page 20 5 Easy Dehumidifier 22°C 29°C 36°C Temperature 20°C 27°C 34°C Current humidity Temperature table – Set humidity Set humidity Dehumidifier mode Dehumidifier mode Dehumidifier mode Dehumidifier mode Dehumidification Circulate Circulate Fan rank Rank 3 Rank 3 Rank 3 Rank 5 Compressor Dehumidifier Dehumidifier...
  • Page 21 6 Drying inside 1. Controls (a) Prevents the growth of mildew by drying the moisture accumulated on the heat exchanger when the dehumidifier is OFF. (b) Drying inside operation does not depend on having a full water level. (c) The following operations are performed during drying inside operation. Target part Compressor Airflow fan Solenoid valve...

  • Page 22: Timing Charts

    7.3. Timing Charts Operation start/Mode button/Operation stop Power Mode Mode Mode Humidity Dehumidification Dehumidification Easy Easy Power button button button stops Humidity set modes modes restarts Power button Easy dehumidifying Laundry Mildew guard Low temp Auto Humidity setting 60% Humidity setting 55% Low (Continuous) Mode indicator Max 3 min...
  • Page 23 Defrosting / Tank full detection / High humidity warning Defrost Swing louvre Power Humidity Defrosting Tank full Humidity Defrosting Tank empty count start stop detected button increase decrease start detected Power button 3 sec Mode indicator Dehumidification standby mode Compressor Solenoid valve Float switch Tank full indicator...
  • Page 24 ON/OFF timer operation ON timer Power ON OFF timer OFF timer ON timer 1 hour 1 hour 2 hours 2 hours (set to 2 hours) Power button Mode indicator Compressor Solenoid valve Float switch Tank full indicator Humidity 12°C Tube temperature 0°C High humidity warning Lights when room temperature is below 14˚C...
  • Page 25 Air purifier operation / Drying inside operation Automatic Mildew drying inside Manual drying Manual drying inside guard elite Power Air purifier complete inside start (drying inside) override stop purifier Power button Air purifier Dehumidifier mode Dehumidifier Mode indicator mode 30 min MAX 20 min 10 min Compressor...

  • Page 26: General Block Diagram

    7.4 General Block Diagram...

  • Page 28: Troubleshooting Procedure

    8. Troubleshooting Procedure 8.1 Troubleshooting flowchart The unit does not operate Start Abnormal Restore AC power supply Check AC power supply Normal Blown Has the fuse blown out? Replace fuse Not blown Is the float switch turned on? Mechanical check •...
  • Page 29 Step 3 Does the compressor operate? (NO if stalled) Is there an overcurrent? Replace compressor *The compressor does not operate for (Surface is hot) 3 minutes after turning the power ON or OFF. (See page 12) Check connectors Is the compressor relay Check board operating properly? (open/bridge)

  • Page 30: Key Component Check Procedures

    8.2 Key Component Check Procedures Component name Testing procedure Detach the connector and measure the resistance using a multimeter (component temperature: 10°C to 30°C). Tub temperature sensing thermistor Normal Abnormal Open or shorted Between P11 pins: 8.0kΩ to 20.8kΩ Detach the connector and measure the resistance using a multimeter Room (component temperature: 10°C to 30°C).

  • Page 31: Error Indications And Corrective Actions

    8.3 Error Indications and Corrective Actions Indication Error (failure) Corrective action (Timer display) P10 connector out of position Room temperature thermistor blowout Check the P10 connection. Check the room temperature and humidity sensor Room temperature thermistor short board. Room temperature and humidity sensor board failure P11 connector out of position Tube temperature thermistor blowout...
  • Page 32 (2) LED, LCD and fan tests ●Start: Press the MODE and HUMIDITY SELECTION buttons simultameously 4 times when the power is off. Press the POWER button within 2 seconds. ●Mode select: Use the timer switch to change the diagnosis mode (0 - 5). ●Finish: Turn the power OFF.

  • Page 33: Disassembly And Reassembly Hints

    9. Disassembly and Reassembly Hints 9.1 Disassembly Procedures Picture 1 Remove the water tank (Pic. 1) Removing the front panel, and air filter Catch assembly Step 1) Push the front panel downward, and pull toward you (to release the catch on the bottom).
  • Page 34 [To remove the control board] Picture 6 Step 1) Pull the front casing/switch operation part toward the outside, release the catch (protrusion) on the switch button on the main board cover side, and remove the main board cover assembly. (Pic. 6) Step 2) Release the main board catches (4 below, 1 on the right), and remove the main board.
  • Page 35 5. To remove the fan assembly Step 1) Remove the water tank, front panel, air Picture 13 filter assembly, front casing assembly, main board, and rear casing following the steps for sections 1 to 4 above. Power board Step 2) Remove the condenser and box assembly connectors (9) from the power board.
  • Page 36 6. To remove the drain pan assembly Picture 18 Step 1) Remove the water tank, front panel, front casing assembly, rear panel, and fan assembly following the steps for sections 1 to 5 above. Step 2) Detach the catches interlocking the drain pan and the base, and remove the base while lifting the right side of the heat exchanger.

  • Page 37: Continuous Water Drainage

    10. Continuous Water Drainage If a drain is available, the unit can continuously drain excess water by attaching a commercially available hose (internal diameter 15mm). The unit can be operated for extensive periods without the need to empty the water tank. CAUTION ¡Commercially available hose (ID 15mm) Long enough to reach the drain.

  • Page 38: Parts Catalog

    Parts Catalog Model MJ-E16VX-S1 Exploded View <Casing and Structure> magnifing picture...
  • Page 39 Parts Catalog Model MJ-E16VX-S1 Parts List <Casing and Structure> Notes: 1. Circled reference numbers indicate performance parts. 2. New parts and the parts that are used only with these models lack compatibility. 3. Those parts that are marked by are of critical importance for sustaining safety and performance. Use specified parts atreplacement.
  • Page 40 Parts Catalog Model MJ-E16VX-S1 Exploded View <Casing and Structure>...
  • Page 41 Parts Catalog Model MJ-E16VX-S1 Parts List <Casing and Structure> Notes: 1. Circled reference numbers indicate performance parts. 2. New parts and the parts that are used only with these models lack compatibility. 3. Those parts that are marked by are of critical importance for sustaining safety and performance. Use specified parts atreplacement.
  • Page 42 Parts Catalog Model MJ-E16VX-S1 Exploded View <Electrical Parts>...
  • Page 43 Parts Catalog Model MJ-E16VX-S1 Parts List <Electrical Parts> Notes: 1. Circled reference numbers indicate performance parts. 2. New parts and the parts that are used only with these models lack compatibility. 3. Those parts that are marked by are of critical importance for sustaining safety and performance. Use specified parts atreplacement.
  • Page 44 Parts Catalog Model MJ-E16VX-S1 Exploded View <Compressor Parts> 12 18 back...

  • Page 45: Parts Catalog

    Parts Catalog Model MJ-E16VX-S1 Parts List <Compressor Parts> Notes: 1. Circled reference numbers indicate performance parts. 2. New parts and the parts that are used only with these models lack compatibility. 3. Those parts that are marked by are of critical importance for sustaining safety and performance. Use specified parts atreplacement.

  • Page 46: Troubleshooting

    11. Troubleshooting Symptom Cause/Remedy ¡ Dehumidified air passes through heating coils causing it to warm The unit blows warm air (this unit is not a cooler). This is not a malfunction. ¡ Check to see if the temperature/humidity is low. Water does not collect in Low room temperature/humidity reduces dehumidifying the water tank (minimal...
  • Page 47 Cause/Remedy Symptom ¡ Check to see if the unit is on a slope or uneven surface. ➝ Move to a sturdy even surface. ¡ Check to see if the pre-filter is clogged. The operating → Clean according to the maintenance procedures noise is loud/reverberates ¡...

  • Page 48: Precautions

    Continuing to operate the unit may result in fire, electric shock, or malfunctions. This may result in fire and/or electric shock. Contact your dealer or Mitsubishi Electric Refer servicing to your dealer or Mitsubishi Service Centre for consultation. Electric Service Centre.
  • Page 49 CAUTION Do not cover the front or side air Do not drain water continuously if there intakes or the air outlet with cloth, is a possibility that temperature around curtain, etc. the hose could drop to freezing point. Water inside the hose may freeze and prevent the water in the tank from flowing out.
  • Page 50 Precautions (cont.) Warning CAUTION ● Keep the unit always in an upright position. Inclining the unit may cause water in the tank to leak into the unit, resulting in malfunction. After emptying the tank, Should you incline the unit accidentally, transport the unit by grasping contact the place of purchase for advice.
  • Page 51 Packaging diagram...
  • Page 52 Issued in 2005.07 Printed in Japan...

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