Mitsubishi Electric JT-SB116JH-G-NA Handbook
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Mitsubishi Electric JT-SB116JH-G-NA Handbook

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HAND DRYER
HANDBOOK
MODELS
JT-SB116JH-G-NA
JT-SB116JH-W-NA
Warning:
Repair work must be performed by the manufacturer, its service
agent or a similarly qualified person in order to avoid hazards.
June 2023
No. U188-E
Nameplate

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Summary of Contents for Mitsubishi Electric JT-SB116JH-G-NA

  • Page 1 June 2023 No. U188-E HAND DRYER HANDBOOK MODELS JT-SB116JH-G-NA JT-SB116JH-W-NA Nameplate Warning: Repair work must be performed by the manufacturer, its service agent or a similarly qualified person in order to avoid hazards.

  • Page 2: Table Of Contents

    8. Circuit board diagrams ............. 9-11 9. Fundamentals of operation ............12 10. Troubleshooting ..............13-15 11. How to call .................. 16 12. Service inspection list ..............16 13. Overhauling procedures ............17-25 14. Parts catalog ................. 26-42 JT-SB116JH-G-NA ............27-34 JT-SB116JH-W-NA ............35-42...

  • Page 3: Safety Precautions

    1. Safety precautions Read the following precautions thoroughly before the maintenance, and then inspect and repair the product in a safe manner. The types and levels of danger that may arise if the product is handled incorrectly are described with the warning symbols shown below.

  • Page 4: Features

    Request for repair ● Before repairs, take the product off the wall. ● Inspect the grounding condition, and repair it if it is incomplete. Make sure that a ground fault circuit interrupter or an overload protection device is installed, if it is not installed, recommend the dealer to install one. ●...

  • Page 5: Improved Points

    3. Improved points Old model New model JT-SB116JH-G-NA Item JT-SB116EH-G-UL JT-SB116JH-W-NA (With a thermal storage heater) (With a simple heater) Appearance Drying time (sec.) 10 to 12 9 to 11 Nozzle Hyper slit nozzle Wave nozzle Noise (dB) Draining device...

  • Page 6: Names Of Components

    4. Names of components *Shaded areas in the figure indicate antibacterial material. Maintenance switch* Hand drying area Service panel Blue light Main unit Black wall area * Before cleaning the unit, turn the maintenance switch on. The blower does not turn on while cleaning. Sensor Service panel The blue light does not have a sterilizing...

  • Page 7: Specifications

    (Average of the three points: 2 m from the front and both sides of the unit.) • The heater is turned off automatically when the room temperature around the unit reaches 86°F (30°C) or above. 6. Outside dimensions JT-SB116JH-G-NA, JT-SB116JH-W-NA Unit: Inches (mm) ─ 7 ─...

  • Page 8: Electrical Wiring Diagram

    7. Electrical wiring diagram JT-SB116JH-G-NA, JT-SB116JH-W-NA ─ 8 ─...

  • Page 9: Circuit Board Diagrams

    8. Circuit board diagrams Circuit board diagrams and check points 1 Power circuit board (JT-34P1H) Heater power supply: 120 V AC (With heater ON) Bus voltage (Being stopped): 170 V DC (JT-34P1H: Between TAB3 and TAB4) (JT-34P1H: Between TAB5 and 0 V or between TAB6 and 0 V) Non-insulated power supply Non-insulated power supply Carrier frequency 15 kHz...
  • Page 10 Non-insulated power supply Power supply voltage: 120 V AC (JT-34F: Between TAB20 and TAB21) (JT-34F: CN30 1P) (JT-34F: CN30 2P) 3 Control circuit board (JT-30M4 [JT-SB116JH-G-NA] /JT-30M4A [JT-SB116JH-W-NA]) Clock frequency 8 MHz (JT-30M4/JT-30M4A: IC20 14P) Reset input 5 V (JT-30M4/JT-30M4A: IC20 11P)
  • Page 11 Circuit thermostat characteristics (JT-30M4/JT-30M4A: IC20 5P) Temperature Resistance IC20 5P Voltage 68°F (20ºC) 59.3 kΩ 3.44 V 86°F (30ºC) 37.6 kΩ 2.91 V 104°F (40ºC) 24.5 kΩ 2.38 V 4 Light receiving circuit board (JT-30S1) (Upper sensor) 5 Sensor circuit board (JT-30S2) (Middle sensor) 6 Sensor circuit board (JT-30S3) (Lower sensor) 7 Display circuit board (JT-30S5) ─...

  • Page 12: Fundamentals Of Operation

    9. Fundamentals of operation Descriptions of circuit operation ( 1 ) Notes for turning the circuit breaker “ON / OFF” 1 When the circuit breaker is turned “ON” and the power is supplied to the product, the power lamp (LED1), the heater lamp (LED2) (with the heater switch ON), and blue illumination lamps (LED10, 11) turn on after 1.5 seconds , and the hand dryer becomes ready for operation.

  • Page 13: Troubleshooting

    10. Troubleshooting Work precautions • When servicing, be sure to recreate the malfunction two or three times before starting repairs. • When servicing, always take care to keep proper footing. • Before starting the service, always unplug the power cord from the outlet, or turn off the circuit breaker when no power cord plug is provided.
  • Page 14 Error Mode Display Checkpoint Check Method and Remedy Malfunction of If no error is found after checking the above, replace the control Power Heater the control circuit circuit board (JT-30M4/JT-30M4A). board (JT-30M4/ JT-30M4A) (Fuse is blown) Malfunction of If the hand dryer does not operate even after replacing the control the power circuit circuit board (JT-30M4/JT-30M4A), replace the power circuit board board (JT-34P1H)
  • Page 15 Troubles without error display Symptom Cause Check Method and Remedy Warm air does not blow. Heater switch Check that the heater switch is turned ON. (Heater lamp lights with the heater switch ON.) Connector dis- Check if the connectors TAB3 and TAB4 on the power circuit board connection for the (JT-34P1H) are disconnected.

  • Page 16: How To Call

    11. How to call Symptom Remedy Air blow is too weak to dry hands 1 Check if the filter is clogged. quickly. 2 Isn’t the air speed switch set at the STANDARD position? Water leaks from the product. 1 Check if the drain tank is filled up. (Empty the drain tank.) *Note: Drain water will overflow onto the floor when the drain tank is filled up beyond its capacity.

  • Page 17: Overhauling Procedures

    • Make sure to connect the power supply wires correctly. • After completing repairs, check that the unit operates properly. Always wear gloves when servicing. The following pictures show JT-SB116JH-G-NA. ( 1 ) Turn off the power supply. 1 Stop the operation.
  • Page 18 (3) Control circuit board (JT-30M4/JT-30M4A) Front panel 1 Draw out the drain tank. 2 Unscrew the clamping screws, and remove the front panel. (Two spl. screws 4×16, indicated by ) 3 Unscrew the clamping screw, and remove the cover (micro). (One spl.
  • Page 19 (5) Power circuit board (JT-34P1H) PCB cover 1 Remove the front panel. → See (3) 1 to 2. 2 Unscrew the clamping screws, and remove the circuit board (PCB) cover for the power circuit board (JT-34P1H). (Two PTT screws 4×16, indicated by ) 3 Disconnect the lead wires from the power circuit board (JT-34P1H), and remove the power circuit board.
  • Page 20 4 Unscrew the clamping screw, and remove the PCB cover for the filter circuit board (JT-34F). (One PTT screw 4×6, indicated by ) PCB cover 5 Disconnect the lead wires from the filter circuit board (JT-34F). Filter circuit board (JT-34F) 6 Remove the spacers (four locations, indicated by ), and then re- ...
  • Page 21 3 Remove the PCB cover for the filter circuit board (JT-34F), and then remove the thermal fuse lead wire (black) from the filter circuit board. → See (7) 3 to 5. Thermal fuse lead wire (black) (9) Heater (PTC) 1 Disconnect the heater lead wires from the power circuit board (JT- 34P1H).
  • Page 22 5 Remove the TB fix plate. → See (7) 2 to 3. TB fix plate 6 Unscrew the clamping screws, and remove the blower cover. (Four PTT screws 4×16, indicated by ) Precaution • Since the blower (assembly) may drop off the blower case, remove the lead wires first, and then slowly remove the blower cover.
  • Page 23 (10) Blower (assembly) 1 Remove the blower cover. → See (9) 1 to 6. Set the blower horizontally. Precaution • Since the blower (assembly) may drop off the blower case, remove the lead wires first, and then slowly remove the blower cover. Assembly precautions •...
  • Page 24 (12) Sensor circuit board (JT-30S3) 1 Disconnect the display circuit board lead wires (blue) from the control circuit board (JT-30M4/JT-30M4A). → See (3) 1 to 4. Display circuit board lead wires (blue) 2 Remove the TB fix plate. → See (7) 2 to 3. 3 Unscrew the side panel (left (L)) clamping screw.
  • Page 25 8 Tilt the panel (front) in the direction of the arrow, and remove it. Panel (front) 9 Remove the sensor holder. Assembly precaution Take care not to pinch the lead wires. Sensor holder 0 Unhook the claw of the sensor holder (one location, indicated by Sensor holder ...

  • Page 26: Parts Catalog

    14. Parts catalog Please note the following when using the parts catalog. 1. When ordering parts, the part number, part name, and the number of parts are required. 2. It may take time for you to receive the parts. Make an inquiry about a rush order. 3.
  • Page 27 JT-SB116JH-G-NA Body parts 7 pieces 1 piece shows accessory parts. ─ 27 ─...

  • Page 28: Jt-Sb116Jh-G-Na

    Body parts JT-SB116JH-G-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Side cover Y45 628 806 Switch door Y45 628 808 Side panel L Y45 628 807 PTT screw 4x16 Y45 650 012 Exhaust duct Y45 622 802...
  • Page 29 Circuit board parts ─ 29 ─...
  • Page 30 Circuit board parts JT-SB116JH-G-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Spacer Y45 650 097 Circuit board Y45 650 177 JT-30S5  Switch Y45 650 259  Insulator sheet Y45 650 834  TB fix plate Y45 628 809...
  • Page 31 Blower parts ─ 31 ─...
  • Page 32 Blower parts JT-SB116JH-G-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Blower cover Y45 650 880 With packing Blower stopper Y45 650 240 Blower assembly Y45 628 400  Floating rubber Y45 650 237 Heater (PTC) Y45 650 885 With a fuse ...
  • Page 33 Wiring parts ─ 33 ─...
  • Page 34 Wiring parts JT-SB116JH-G-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Lead wire Y45 650 242  CN18-CN19 Lead wire Y45 650 222 CN7-CN12、CN15  Lead wire Y45 650 241 CN8-CN11  Lead wire Y45 628 221 TAB1、2-TAB22、23 ...

  • Page 35: Jt-Sb116Jh-W-Na

    JT-SB116JH-W-NA Body parts 7 pieces 1 piece shows accessory parts. ─ 35 ─ JT-SB116JH-W-NA...
  • Page 36 Body parts JT-SB116JH-W-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Side cover Y45 631 806 Switch door Y45 633 807 Side panel L Y45 633 806 PTT screw 4×16 Y45 650 012 Exhaust duct Y45 622 802 Panel holder L Y45 650 835 Panel holder R...
  • Page 37 Circuit board parts ─ 37 ─ JT-SB116JH-W-NA...
  • Page 38 Circuit board parts JT-SB116JH-W-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Spacer Y45 650 097 Circuit board Y45 650 177 JT-30S5  Switch Y45 650 259  Insulator sheet Y45 650 834  TB fix plate Y45 628 809 Cord bush Y45 650 235 Insulator sheet...
  • Page 39 Blower parts ─ 39 ─ JT-SB116JH-W-NA...
  • Page 40 Blower parts JT-SB116JH-W-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Blower cover Y45 650 880 With packing Blower stopper Y45 650 240 Blower assembly Y45 628 400  Floating rubber Y45 650 237 Heater (PTC) Y45 650 885 With a fuse ...
  • Page 41 Wiring parts ─ 41 ─ JT-SB116JH-W-NA...
  • Page 42 Wiring parts JT-SB116JH-W-NA Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Lead wire Y45 650 242  CN18-CN19 Lead wire Y45 650 222 CN7-CN12、CN15  Lead wire Y45 650 241 CN8-CN11  Lead wire Y45 628 221 TAB1、2-TAB22、23 ...

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