Toto G400 SN920M Instruction Manual
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Toto G400 SN920M Instruction Manual

Ms920cemfg washlet integrated toilet
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Washlet Integrated Toilet
G400 SN920M
(MS920CEMFG)
■ Thank you for your recent purchase of the product.
Please read the enclosed information to ensure the safe use of your product.
■ Be sure to read this Instruction Manual before using your product and keep it in a
safe place for future reference.
Instruction Manual

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Questions and answers

Fran Addicott
April 11, 2025

The lid goes up by itself.

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1 comments:
Mr. Anderson
April 11, 2025

The Toto G400 SN920M lid goes up by itself due to the AUTO OPEN/CLOSE feature, which uses a body sensor to detect when a person approaches the toilet. When the user moves within about 30 cm (0.98 ft) of the bowl unit, the lid automatically opens.

This answer is automatically generated

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Summary of Contents for Toto G400 SN920M

  • Page 1 Instruction Manual Washlet Integrated Toilet G400 SN920M (MS920CEMFG) ■ Thank you for your recent purchase of the product. Please read the enclosed information to ensure the safe use of your product. ■ Be sure to read this Instruction Manual before using your product and keep it in a...
  • Page 2 What functions are available on your model? Product name, ■ Part number system Part No. Combination model number MS Top unit Bowl Unit Washlet Integrated Product name (Model) Ref. Toilet G400 Page Functions Part No. SN920M Rear cleansing ● Cleansing Rear soft cleansing Front cleansing Wand position adjustment...

  • Page 3: Table Of Contents

    Table of Contents Safety Precautions ....4 Operational Precautions ..11 Parts Names ......12 Preparation ......14 Basic Operations ..... 16 Automatic Functions ....20 DEODORIZER, PRE-MIST,AUTO FLUSH, AUTO OPEN/CLOSE Temperature Adjustment..22 Energy Saver Feature ..... 24 Power Plug ......28 Top unit ........

  • Page 4: Safety Precautions

    Safety Precautions IMPORTANT SAFEGUARDS READ ALL INSTRUCTIONS BEFORE USING Symbols and Meanings WARNING May result in death or serious injury. CAUTION May result in injury or property damage. The following symbols are used to indicate important safety instructions for the use of the product. Symbol Meaning This symbol indicates a prohibited use of the product.
  • Page 5 WARNING Do not use the Washlet if a malfunction occurs. Always unplug the plug from the outlet.   Close the water shutoff valve to stop water supply. Possible malfunctions:   Water is leaking from a pipe or the top unit. ...
  • Page 6 Safety Precautions (Continued) WARNING Beware of irritation or burn   Improper use of the toilet seat may cause irritation or burn. When sitting for a long time on the toilet seat, switch the toilet seat temperature adjustment to "OFF". When any of the following persons use a heated seat or warm air drying, someone should switch the toilet seat temperature adjustment to "OFF"...
  • Page 7 WARNING Preliminary studies in females suggest that overuse of continuous spraying can increase the possibility of vaginal mucosa drying and potential reduction in desirable microbial organisms. Although these studies have not been validated, please consult your healthcare provider for concerns regarding whether these circumstances may apply to you. More importantly, if you are an individual suffering from any immune defi...
  • Page 8 Safety Precautions (Continued) CAUTION Do not pour hot water into the toilet.   Doing so may result in damage to the toilet, injury or water damage. Do not fl ush anything other than bodily waste and toilet paper. Also, do not fl...
  • Page 9 DANGER To reduce the risk of electrocution: 1. Do not use while bathing. 2. Do not place or store the product where it can fall or be pulled into a tub or sink. 3. Do not place in or drop into water or other liquid. 4.
  • Page 10 Safety Precautions (Continued) Grounding Instructions This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electrical current. The plug must be plugged into an outlet that is properly installed and grounded. DANGER - Improper use of the grounding plug can result in a risk of electric shock.

  • Page 11: Operational Precautions

    Operational Precautions ■ For prevention of malfunctions ■ For prevention of damage ● Do not block the body sensor or the remote control ● Wipe plastic areas such as the transmitter or receiver. top unit and remote control with < About the body sensors > a soft cloth tightly wrung out Dry cloth or tissue with water.

  • Page 12: Parts Names

    Parts Names Toilet lid cushion Toilet lid Product name, part no., etc. Body sensor A (Page 11) Seat switch (Built-in) Power plug Warm air outlet Power cord cover Wand cover Wand Heated seat Bowl unit (Page 29) Shutoff valve (Page 15) Water supply hose Water fi...
  • Page 13 Main display Right side of top unit ENERGY SAVER Deodorizer outlet FLUSH Button WATER LED Manual fl ush pull cord (For fl ushing in case of SEAT LED Deodorizing fi lter power outage) (Page 31) POWER LED (Page 50) Toilet seat cushions Body sensor B (Page 11) Left side of top unit...

  • Page 14: Preparation

    Preparation Using the Product for the First Time 1. Insert the battery If the remote control is secured (for anti theft) Remove the remote control from the hanger. Remove the screw from the remote control fi xture. Remote control (View from side) Remote control Wall Hanger...
  • Page 15 2. Turn on the power 3. Open the shutoff valve Fully open the shutoff valve. Insert the power plug.  The wand extends and then retracts. Check that the POWER LED on the main display is lit up. Opening/closing tool (accessory) or fl...

  • Page 16: Basic Operations

    Basic Operations Press a button on the remote control; a beep sounds when the top unit receives the signal. Flushing [FULL FLUSH] Performs a full flush. Up to 10 m (33 ft) of toilet paper (single) [LIGHT FLUSH] Performs a light flush. Up to 3 m (10 ft) of toilet paper (single) Opening and closing [SEAT OPEN/CLOSE]...
  • Page 17 ● Functions that operate when a button is pressed during "REAR", "SOFT" or "FRONT" cleansing. [OSCILLATING] The wand moves back and forth to ● wash your rear thoroughly. The setting changes between "ON" and ● "OFF" each time the button is pressed. [POSITION] The wand position can be adjusted to ●...
  • Page 18 Basic Operations About the Menu Screen This section is an overview of the settings that can be confi gured with the remote control.   See the corresponding pages for the detailed descriptions. Remote control back side TEMPERATURE SETTING WATER Remote controller SEAT display...
  • Page 19 You can set as desired If you want to return to the previous item, press the button. Level 1 Level 2 Level 3 CLEANING WAND CLEANING MODE ON/OFF AUTO FLUSH 1. AUTO FLUSH ENERGY 2. AUTO FLUSH SAVER WAITING TIME 10SEC 1.

  • Page 20: Automatic Functions

    Automatic Functions Cleaning Features, Convenience Features As you approach As you sit As you stand up* Removing odors inside Deodorizer stops the bowl unit ➝It stops after about 2 minutes DEODORIZER Starts the deodorizer A mist is sprayed inside the bowl unit to make it more diffi...
  • Page 21 As you move away Changing Note settings   "DEODORIZER" ON/OFF (Page 44)   The pre-mist will not spray for about   "PRE-MIST" ON/OFF 90 seconds after you stand up from (Page 44) the toilet seat.   Auto fl...

  • Page 22: Temperature Adjustment

    Temperature Adjustment Warm Water / Toilet Seat / Drying You can adjust the temperature levels or turn the settings to "OFF". to select the Press [TEMP]. item you want to set. TEMPERATURE TEMPERATURE SETTING SETTING WATER WATER SEAT SEAT DRYER DRYER TEMPERATURE SETTING...
  • Page 23 <Settings complete> to select the temperature level. TEMPERATURE SETTING WATER SEAT DRYER Warm water High Press temperature until "OFF" appears.   When "OFF" is set, the WATER LED will go off. Toilet seat High Press temperature until "OFF" appears. ...

  • Page 24: Energy Saver Feature

    Energy Saver Feature Type "AUTO ENERGY SAVER" or "TIMER ENERGY SAVER" can be selected. To save energy, the temperature of the toilet seat becomes low (or "OFF"). When the energy saver feature is "OFF", the temperature is kept at the same level. ●...
  • Page 25 When energy saver is in operation Toilet seat Warm water heater heater Example: Used infrequently from 9 pm to 6 am Set temperature temperature temperature temperature (Orange) Example: Set from 8 am to 5 pm temperature temperature (Green) Example: When timer energy saver and auto energy saver are used together ●...
  • Page 26 Energy Saver Feature How to set Set the timer energy saver at the time you want to start it. Press [MENU]. to select AUTO ENERGY "ENERGY SAVER" and then SAVER press [ENTER]. MENU 1. CLEANING 2. ENERGY SAVER 3. AUTO Remote controller TIMER ENERGY display...
  • Page 27 to select ENERGY SAVER "AUTO ENERGY 1. AUTO ENERGY SAVER". SAVER to select ENERGY AUTO SAVER "ON/OFF" and then ENERGY 1. AUTO ENERGY SAVER SAVER press [ENTER]. (To return➝ to select ENERGY SAVER "TIMER SAVER". 1. AUTO ENERGY SAVER 2. TIMER SAVER to select ENERGY SAVER...

  • Page 28: Power Plug

    Maintenance Power plug WARNING (Approximately once a month) Always disconnect the power plug from the outlet before cleaning, maintenance or inspection. (see left) (Failure to do so may cause electric shock or malfunction, resulting in a breakdown.) Dry cloth Wet cloth Disconnect the power plug and wipe it with a dry cloth.

  • Page 29: Top Unit

    Top unit Bowl Unit (Approximately daily) (Approximately daily) • Toilet brush • Strongly acidic cleaners or strong Soft cloth • Toilet paper • Neutral toilet alkaline cleaners soaked in water • Dry cloth • Nylon scrubbing pads detergent • Cleaners containing abrasive compounds (May cause damage.) •...

  • Page 30: Gap Between The Top Unit And The Toilet Lid

    Maintenance Gap between the Top unit and the Toilet Lid (Approximately once a month) The toilet lid can be removed for thorough cleaning. Soft cloth soaked in water Toilet paper, etc. (May cause damage.) Unplug the power plug. Removing and Reinstalling Remove the toilet lid.

  • Page 31: Deodorizing Filter

    Deodorizing fi lter (Approximately once a month) Unplug the power plug. Remove the deodorizing fi lter.  Hold the knob and pull outward.  Do not pull with undue force. (May cause damage or malfunctions) Deodorizing fi lter Clean with a tool such as a toothbrush.

  • Page 32: Wand

    Maintenance Wand (Approximately once a month) <If you notice dirt (Wand cleaning) > Soft cloth soaked in water Toilet paper, etc. (May cause damage.) Extend the wand.  Operate with the buttons on the back side of the remote control. Press [MENU].

  • Page 33: Water Filter Drain Valve

    Water Filter Drain Valve (Approximately once every 6 months) <If you think the water pressure has weakened> Close the shutoff valve. Remove the cover and water  The water supply stops. fi lter drain valve.  Loosen with a fl at-head screwdriver and then pull.

  • Page 34: Water Filter (Bowl Unit)

    Maintenance Water fi lter (Bowl unit) (Approximately once every 6 months) Close the shutoff valve. Loosen the cap of the water  The water supply stops. fi lter to remove the water fi lter.  Use the opening/closing tool. CAUTION Do not remove the water fi...
  • Page 35 Install the cap of the water fi lter to the original position and tighten it with the opening/closing tool. Opening/ closing tool Open the shutoff valve.  Check that there are no leaks in the shutoff valve or plumbing connections. Opening/closing tool or flat-head screwdriver.

  • Page 36: Changing Settings

    Changing Settings Setting List Setting Types AUTO FLUSH AUTO FLUSH AUTO FLUSH WAITING TIME AUTO OPEN/ CLOSE AUTO CLOSE WAITING TIME AUTO AUTO OPEN/ FUNCTIONS CLOSE AUTO OPEN WAITING TIME SEAT/LID PRE-MIST CLEANING DEODORIZER BEEP OTHER SETTING LOCK SETTINGS PERSONAL SETTING LOCK...
  • Page 37 Setting Ref. Available Settings Page Bold: Initial settings   Set whether or not to clean the bowl unit / OFF automatically Page 38   Change the amount of time before the toilet 5SEC / 10SEC / 15SEC fl ushes automatically ...
  • Page 38 Changing Settings AUTO FLUSH Press [MENU]. Set whether or not to clean the bowl unit automatically AUTO FLUSH MENU select "AUTO 1. CLEANING FUNCTIONS" 2. ENERGY SAVER and then press 3. AUTO FUNCTIONS [ENTER]. 4. OTHER SETTINGS AUTO FUNCTIONS select "AUTO Change the amount of time 1.
  • Page 39 to select AUTO FLUSH "AUTO FLUSH". 1. AUTO FLUSH to select AUTO FLUSH "ON/OFF" and then AUTO FLUSH 1. AUTO FLUSH press [ENTER]. (To return➝ to select AUTO FLUSH "AUTO FLUSH 1. AUTO FLUSH WAITING TIME". 2. AUTO FLUSH WAITING TIME 10 SEC to select AUTO FLUSH...
  • Page 40 Changing Settings AUTO OPEN/CLOSE Press [MENU]. Set whether or not to open the toilet lid automatically AUTO OPEN/ MENU select "AUTO CLOSE 1. CLEANING FUNCTIONS" 2. ENERGY SAVER and then press 3. AUTO FUNCTIONS [ENTER]. 4. OTHER SETTINGS to select AUTO FUNCTIONS "AUTO OPEN/...
  • Page 41 to select AUTO OPEN/CLOSE "AUTO OPEN/ 1. AUTO OPEN/CLOSE CLOSE". to select AUTO OPEN/CLOSE "ON/OFF" and then AUTO FLUSH 1. AUTO OPEN/CLOSE press [ENTER]. (To return➝ to select AUTO OPEN/CLOSE "AUTO CLOSE 1. AUTO OPEN/CLOSE WAITING TIME". 2. AUTO CLOSE WAITING TIME 90 SEC to select...
  • Page 42 Changing Settings AUTO OPEN/CLOSE Press [MENU]. Change the time period till automatic opening MENU (After closing manually.) select "AUTO 1. CLEANING AUTO OPEN FUNCTIONS" 2. ENERGY SAVER WAITING TIME and then press 3. AUTO FUNCTIONS [ENTER]. 4. OTHER SETTINGS to select AUTO FUNCTIONS "AUTO OPEN/...
  • Page 43 to select AUTO OPEN/CLOSE "AUTO OPEN 2. AUTO CLOSE WAITING TIME WAITING TIME". 90 SEC 3. AUTO OPEN WAITING TIME 15 SEC to select AUTO OPEN/CLOSE AUTO OPEN "15SEC / 30SEC / WAITING TIME 2. AUTO CLOSE WAITING TIME 30 SEC 90SEC"...
  • Page 44 Changing Settings CLEANING Press [MENU]. MENU Set whether or not to select "AUTO 1. CLEANING spray mist in the bowl unit FUNCTIONS" 2. ENERGY automatically SAVER and then press PRE-MIST 3. AUTO FUNCTIONS [ENTER]. 4. OTHER SETTINGS to select AUTO FUNCTIONS "CLEANING"...
  • Page 45 to select CLEANING "PRE-MIST". 1. PRE-MIST 2. DEODORIZER to select CLEANING "ON/OFF" and then PRE-MIST 1. PRE-MIST press [ENTER]. 2. DEODORIZER (To return➝ to select CLEANING "DEODORIZER". 1. PRE-MIST 2. DEODORIZER to select CLEANING "ON/OFF" and then DEODORIZER 1. PRE-MIST press [ENTER].
  • Page 46 Changing Settings OTHER SETTINGS Press [MENU]. Set whether or not to MENU make a beep sound to select 1. CLEANING BEEP "OTHER 2. ENERGY SAVER SETTINGS" 3. AUTO FUNCTIONS and then press 4. OTHER SETTINGS [ENTER]. Remote controller display Select keys :Select an item :Select a setting [ENTER]...
  • Page 47 to select OTHER SETTINGS "BEEP". 1． BEEP to select OTHER SETTINGS "ON/OFF" and then BEEP 1． BEEP press [ENTER]. (To return➝...
  • Page 48 Changing Settings OTHER SETTINGS Press [MENU]. MENU to select 1. CLEANING "OTHER Set whether or not to use 2. ENERGY SAVER the setting lock SETTINGS" 3. AUTO SETTING FUNCTIONS and then press 4. OTHER SETTINGS LOCK [ENTER]. Remote controller Set whether or not to use display the personal setting lock PERSONAL...
  • Page 49 to select OTHER SETTINGS "SETTING LOCK". 2. ANTI FREEZING 3. SETTING LOCK to select OTHER SETTINGS "ON/OFF" and then SETTING LOCK 2. ANTI FREEZING press [ENTER]. 3. SETTING PRESS ENTER LOCK FOR 2 SEC TO RESET Check the displayed screen. Cancellation method: SETTING LOCK Press [ENTER] for 2 seconds...

  • Page 50: What To Do

    What to Do? If the water does not fl ow due to a power failure (when water failure hasn't occurred) ■ You can fl ush the toilet with the hand lever (for fl ushing in case of power outage). Pull out the hand lever on the right side of the washlet's main body.

  • Page 51: If You Cannot Operate With The Remote Control

    If you cannot operate with the remote control ■ Flush is also possible using the buttons on the main display. <Main display> FLUSH button ■ The batteries may have worn out. Replace the batteries.  ● Replacing the batteries Unplug the power plug. ...

  • Page 52: Long Periods Of Disuse

    What to Do? Long Periods of Disuse If the toilet is in a location you will not visit for a long time, drain the water. (The water in the tank may become contaminated and cause skin irritation or other problems.) (May cause freezing and damage to product.) How to drain the water Close the shutoff valve.
  • Page 53 Remove the water drain plug.   Water comes out from around the wand (about 90 seconds) Water drain plug Reinstall the water drain plug and cover.  ● Putting antifreeze in the water remaining in the bowl unit will reduce its chance of freezing. (The antifreeze solution should not be fl...

  • Page 54: Troubleshooting

    Troubleshooting First, try the actions described on pages 55 to 60. If the problem CAUTION persists, consult the installer, seller or the contact listed on the back cover of this manual. If a water leak occurs, In the following case, unplug the plug and then plug it again. close the shutoff valve.
  • Page 55 Rear and Rear soft, front cleansing, wand Ref. Trouble Please check Page ● Did you sit on the toilet continuously for 2 hours or longer? (If so, operation is stopped for safety purposes.) ➞Stand up from the seat and then use again. ●...
  • Page 56 Troubleshooting Warm air drying Ref. Trouble Please check Page The dryer ● Is the dryer temperature set to low level? temperature is low ● The feature stops automatically after 10 minutes of continuous use. Stops in the middle ● Does the seat switch have diffi culty detecting? ➞...
  • Page 57 Flushing Ref. Trouble Please check Page Pulling the hand lever (for fl ushing in case ● Pull the hand lever (for fl ushing in case of power outage) for 4 seconds or of power outage) does more to fl ush the toilet. not fl...
  • Page 58 Troubleshooting Toilet Seat and Toilet Lid (AUTO OPEN/CLOSE) Ref. Trouble Please check Page ● Is "AUTO OPEN/CLOSE" set to "OFF"? ➞Set to "ON". ● When you do not sit on the toilet seat, or when the time spent sitting on the toilet seat or standing in front of it is 6 seconds or less, the toilet seat and The toilet lid does not toilet lid close after about 5 minutes.
  • Page 59 Toilet Seat and Toilet Lid Ref. Trouble Please check Page ● Is the toilet seat temperature set to "OFF" or a low level? ● Is energy saver in operation?   The energy saver feature is on when the ENERGY SAVER LED is on and the POWER LED is off on the main display.
  • Page 60 Troubleshooting Others Ref. Trouble Please check Page Water is leaking ● If any nuts in a connection are loose, fi rmly tighten them with a tool such as a from the plumbing monkey wrench. ➞If the water leak does not stop, close the shutoff valve and seek repair. connections The display on ●...

  • Page 61: Specifi Cations

    (W 1.28 ft × D 2.39 ft × H 2.24 ft) About 48.7 kg (About 107.4 lb) Weight <Top unit About 8.7 kg (About 19.2 Ib), Bowl unit About 40.0 kg (About 88.2 lb)> * Temperature around the warm air outlet measured by TOTO.

  • Page 62: Warranty

    ) Damage or loss resulting from electrical surges or lightning strikes or other acts which are not the fault of TOTO or which the Product is not specified to tolerate, including failure to use the factory equipped cord and plug or use of a loose or faulty electrical outlet or use of a current or socket other than a 120V, 60Hz electrical current from a GFI (ground, fused) socket.
  • Page 63 MEMO...
  • Page 64 Phone : (770) 282 8686 Warranty Registration and Inquiry For product warranty registration, TOTO U.S.A. Inc. recommends On-Line Warranty Registration. Please visit our web site http://www.totousa.com. If you have questions regarding warranty policy or coverage, please contact TOTO U.S.A. Inc., Customer Service Department, 1155 Southern Road, Morrow, GA 30260 (888) 295 - 8134 or (678) 466 - 1300 when calling from outside of U.S.A.

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