Mitsubishi Heavy Industries WF-RAC Technical Manual
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Mitsubishi Heavy Industries WF-RAC Technical Manual

Wireless lan interface
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Manual No.'21•SRK-T-324
TECHNICAL MANUAL
WIRELESS LAN INTERFACE
WF-RAC

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Questions and answers

Stefan Dimov
March 2, 2025

My WF-RAC can not establish a stable link to my wireless router. I have 4 devices and have the issue with one of them. The signal strength is perfect, so it is not a problem. The device connects for about 15-30 seconds and disconnects from my wifi router. After that it connects again, etc...

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1 comments:
Mr. Anderson
March 2, 2025

The Mitsubishi Heavy Industries WF-RAC may keep disconnecting from the wireless router despite good signal strength due to several possible reasons:

1. Interference from Other Devices – The device may experience interference from other electronic devices emitting radio waves, such as microwave ovens.

2. Barriers Affecting Signal Stability – Even if the signal strength appears good, barriers like metal or reinforced concrete between the WF-RAC and the router can cause instability.

3. Incompatibility with Mobile Wi-Fi Routers – The WF-RAC requires a wireless LAN router compatible with IEEE 802.11b/g/n (2.4 GHz band). Operation with a mobile Wi-Fi router is not guaranteed.

4. Network Configuration Issues – The product must be connected to the Internet via a router and cannot connect directly to telecommunication carrier lines.

5. Environmental Conditions – The WF-RAC operates within a temperature range of 0-40°C and humidity of 75% or less. Exceeding these conditions may cause disconnections.

Checking these factors and adjusting the environment or network setup may help resolve the issue.

This answer is automatically generated

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Summary of Contents for Mitsubishi Heavy Industries WF-RAC

  • Page 1 Manual No.'21•SRK-T-324 TECHNICAL MANUAL WIRELESS LAN INTERFACE WF-RAC...

  • Page 3: Table Of Contents

    8. MAIN UNIT USER’S MANUAL ........18 9. APPLICATION OPERATION MANUAL ...... 34 10. FAQ (Troubleshooting) ..........86 11. TIMER FUNCTION OPERATION EXPLANATION ..97 1. APPLICABLE MODELS Part name Model Applicable models Wireless LAN interface WF-RAC ZSX・ZS・ZR・ZMX・ZM series － 1 －...

  • Page 4: Exterior Dimensions

    Wireless LAN interface main unit Name Reset button Communication LED Running LED Power button Set button 3. ELECTRICAL WIRING 3. ELECTRICAL WIRING Indoor unit WF-RAC control box Attached cable Printed-circuit board Printed-circuit board Symbol Name Connector CNS,CN1 － 2 －...

  • Page 5: Wiring Connection

    '21 • SRK-T-324 4. WIRING CONNECTION 4. WIRING CONNECTION 4. WIRING CONNECTION To CNS To CNS Printed-circuit Connector Connection cable board Printed-circuit Connector Connection cable board Connection cable 5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT Connection cable 5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT 5.

  • Page 6: Functions List

    Operation by remote control (Before) (After) Function Setting Not connected Connecting Wired remote control Smart M-Air Wired remote control Smart M-Air Option parts Option parts (SC-BIKN2) (WF-RAC) (SC-BIKN2) (WF-RAC) ON/OFF ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...
  • Page 7 Operation by remote control (Before) (After) Function Setting Not connected Connecting Wired remote control Smart M-Air Wired remote control Smart M-Air Option parts Option parts (SC-BIKN2) (WF-RAC) (SC-BIKN2) (WF-RAC) ON/OFF ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...
  • Page 8 Operation by remote control (Before) (After) Function Setting Not connected Connecting Wired remote control Smart M-Air Wired remote control Smart M-Air Option parts Option parts (SC-BIKN2) (WF-RAC) (SC-BIKN2) (WF-RAC) ON/OFF ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...

  • Page 9: Main Unit Installation Manual

    UNIT INSTALLATION MANUAL RKZ012A105 • This INSTALLATION MANUAL can also be viewed on the home page of MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. • Please download USER’S MANUAL (including the guarantee form) via the QR code or from the home page described later.
  • Page 10 '21 • SRK-T-324 WARNING ● Do not bundle, roll, or step on connection cables to prevent cables from becoming deformed. (Deformation may cause heat generation, fire, or electric shocks due to loose connection, insulation failure, current exceeding the allowable limit, etc.) ●...
  • Page 11 '21 • SRK-T-324 WARNING ● In the installation work, install the product securely according to this installation manual, and be sure to use accessories and specified parts for installation. (Improper installation may cause a water leakage, electric shock, or fire.) ●...
  • Page 12 '21 • SRK-T-324 WARNING ● This appliance is not intended for use by persons (including Children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
  • Page 13 '21 • SRK-T-324 CAUTION ● Do not use the product near another wireless device, microwave, cordless phone, fax machine, etc. (Improper use may cause malfunction.) ● To prevent any failure due to electrical discharge, touch your hand with metal around you to remove static electricity from your body before you touch this product.
  • Page 14 '21 • SRK-T-324 1. Selecting the installation location and installing the main body ＜Selecting the installation location＞ Install this product in a location that satisfies the following conditions with the agreement of your customer. ● A location where this product is not exposed to direct sunlight ●...
  • Page 15 '21 • SRK-T-324 ＜Cautions for installation＞ ● Do not mount the holder and main unit inside the indoor unit. ● Fix the holder on a wall, pillar, etc. securely with attached screws. (Do not mount it on a clay wall, etc.) ●...
  • Page 16 '21 • SRK-T-324 4. WIRING CONNECTION 2. Connecting this product with the indoor unit To CNS Printed-circuit Connector Connection cable board Connection cable 5. PRINTED-CIRCUIT BOARD COMPONENT LAYOUT Connect the indoor unit connection cable to the indoor control printed- circuit board. ・...
  • Page 17 '21 • SRK-T-324 After the installation work is completed, be sure to check the following. Installation work check items □ Is the holder fixed securely? □ Is the cable trapped? Is the connection cable under a load? □ Is the connector connected properly and securely? □...
  • Page 18 User's Manual Refer to the home page of MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. http://www.mhi-mth.co.jp/en/products/detail/air-conditioner_ users_manual.html ● CE Marking Refer to the home page of MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. https://www.mhi-mth.co.jp/en/technology/ce_marking.php EN-10...
  • Page 19 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom Tel : +44-333-207-4072 Fax: +44-333-207-4089 http://www.mhiae.com/ MHIAE SERVICES B.V. (Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.) Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands P.O.Box 23393 1100 DW Amsterdam, Netherlands Tel : +31-20-406-4535 http://www.mhiaeservices.com/...

  • Page 20: Main Unit User's Manual

    WIRELESS LAN INTERFACE '21 • SRK-T-324 MAIN UNIT USER'S MANUAL 8. MAIN UNIT USER'S MANUAL [EN] RKZ012A106 RKZ012A106 Safety precautions Please read these safety precautions carefully before using this product and use the product properly. ● Be sure to follow these precautions as they describe important safety-related information.
  • Page 21 '21 • SRK-T-324 WARNING ● Do not disassemble, modify, or repair this product. (Improper work may cause a fire, electrical shock, or injury.) ● Do not immerse the wireless LAN interface in water, splash water on it, or handle it with wet hands. (Improper handling may cause an electric shock or fire.) ●...
  • Page 22 '21 • SRK-T-324 CAUTION ● Do not install the product in a place where inflammable gas may leak. (Improper installation may cause ignition.) ● Do not install the product in a place within the reach of infants. (Improper installation may cause injury.) ●...
  • Page 23 '21 • SRK-T-324 WARNING Note for Using This Product When operating the air conditioner away from home, carefully confirm the state of the air conditioner, its periphery, and people in the room beforehand to ensure safety. Failure to do so may cause death, serious injury, or property damage in some cases.
  • Page 24 '21 • SRK-T-324 Note on Wireless Communication (Radio Wave) Wireless LAN and Radio Act ・ This wireless LAN interface has construction design certification. Therefore, application for the license is not necessary. ・ This product is certified to meet the technical standard as a wireless facility of a specified low-power radio station based on the Radio Act.
  • Page 25 '21 • SRK-T-324 Names of Parts Name Reset button Communication LED (orange) Running LED (green) Power button Set button Operations of buttons Pressing Button Operation state duration Reset button Less than Reset (restart) 3 seconds * Press this button by using something with 3 seconds Restores information in wireless...
  • Page 26 '21 • SRK-T-324 LED display Running LED Description of Communication LED operation (orange) (green) Connecting with WPS Connecting: OFF Flashing every second function. After connected: ON for 2 seconds Connecting in AP Connecting: OFF Flashes: ON for 2 seconds and OFF for After connected: ON 0.5 seconds.
  • Page 27 Mass (main unit) About 80g Material Casing: ABS + PC Operation guarantee Temperature 0 - 40°C, humidity 75% or less environment Part name Wireless LAN interface Model name WF-RAC Cable length 1.3m Wireless IEEE 802.11b/g/n 2.4GHz band communication method Compatible 2014/53/EU standards * For supported models, refer to air conditioner catalogs, etc.
  • Page 28 '21 • SRK-T-324 System configuration (for remote control) Server Smartphone application “Smart M-Air” Room air-conditioner Wireless LAN interface Wireless LAN router ‐9‐...
  • Page 29 '21 • SRK-T-324 Connecting to Network via Wireless LAN The following procedure may partly differ depending on the model to be connected. For the latest User's Manual, refer to the home page of our air conditioner products. Preparation before connection Check beforehand.
  • Page 30 '21 • SRK-T-324 2. Confirm that the router to be used is equipped with the WPS function (simple setting function). WPS: Use when you connect to the router only by operating buttons. Use when you connect to the router by entering and setting SSID and KEY (password).
  • Page 31 '21 • SRK-T-324 (4) When the connection is complete, the Communication LED lights up for 2 seconds. Start the application and tap the “Find unregistered air conditioners” button on the air conditioner list screen. • Confirm that an icon of the unregistered air conditioner is added. If it is not displayed, confirm again that steps (1) to (3) have been performed properly.
  • Page 32 '21 • SRK-T-324 (4) Start the application and tap the “Find unregistered air conditioners” button on the air conditioner list screen. • Confirm that an icon of the unregistered air conditioner is added. • Confirm that the last four digits of the SSID labelled on the wireless LAN interface is displayed as the name of the air conditioner.
  • Page 33 '21 • SRK-T-324 4. Start the application and operate the air conditioner at home (away from home). • Setting is complete if the connected air conditioner is displayed on the equipment list screen. If it is not displayed, update the screen by tapping the “Find unregistered air conditioners”...
  • Page 34 '21 • SRK-T-324 In case:  Turning OFF the wireless LAN interface function ・ Press the Power button for 2 seconds or more, and the Running LED and Communication LED turn OFF.  It is not behaving as it should ・...
  • Page 35 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom Tel : +44-333-207-4072 Fax: +44-333-207-4089 http://www.mhiae.com/ MHIAE SERVICES B.V. (Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.) Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands P.O.Box 23393 1100 DW Amsterdam, Netherlands Tel : +31-20-406-4535 http://www.mhiaeservices.com/...

  • Page 36: Application Operation Manual

    '21 • SRK-T-324 9. APPLICATION OPERATION MANUAL Smart M-Air Operation Manual [EN] RKZ012A107 RKZ012A107...
  • Page 37 '21 • SRK-T-324 Table of contents Application Features ..............Manipulation modes ............... Remote operation mode ..............38 Home restricted mode ............... 38 Demo mode ..................38 Preparation for Use ................ Smartphone setting ................39 Application initial setting ..............39 Creating user account ...............
  • Page 38 '21 • SRK-T-324 Setting Timer by Specifying Date via Calendar ………..Clear the timer set from the calendar ..........63 Displaying Electricity Bill Graph ..........Updating Firmware ..............Main Menu ..................Canceling demo mode ..............69 Checking Alerts ................Changing Application Settings ..........

  • Page 39: Application Features

    '21 • SRK-T-324 1. Application Features You can operate the air conditioner in each room at home or from outside. • Setting operation reservation of every day of the week for each air conditioner • Checking the power consumption of an air conditioner •...

  • Page 40: Manipulation Modes

    '21 • SRK-T-324 2. Manipulation modes • Remote operation mode This mode allows you to operate the registered air conditioner via the smartphone application when you are out of the office. Also, you can register and operate the air conditioner at home through a smartphone application.

  • Page 41: Preparation For Use

    '21 • SRK-T-324 3. Preparation for Use • Smartphone setting Turn on Wi-Fi of your smartphone. Figure 3-1 • Application initial setting Tap the Smart M-Air icon. Figure 3-2 The application starts. Figure 3-3 - 6 -...
  • Page 42 '21 • SRK-T-324 After startup, the “Language/Time Zone Settings” screen appears. Select a language to use in the application. Select a time zone. Select the time zone in which the air conditioner to operate via the application exists. Finally, tap on the top right to complete the setting.

  • Page 43: Creating User Account

    '21 • SRK-T-324 On the startup screen, select a mode to use. ■ Operate Air Conditioner (Remote operation mode) Tap " Operate Air Conditioner " for remote control or to use optional functions such as weekly timer. → To “Creating user account” ■...
  • Page 44 '21 • SRK-T-324 Read the text of Handling of Personal Informationto the bottom and check the description. If you agree it and use the application, tap [Agree]. Figure 3-8 The “Create an Account” screen appears. Enter your e-mail address and password and tap the [Create an Account] button.
  • Page 45 '21 • SRK-T-324 When the pop-up message “Create an Account” appears, tap [OK]. The email containing the URL of the authentication screen will be sent to the email address you entered, so please click the URL within 24 hours to complete the account creation.

  • Page 46: Registering Air Conditioner

    '21 • SRK-T-324 • Registering air conditioner Use the “Air Conditioner List” screen to register an air conditioner to operate. Tap the "Find unregistered Air Conditioners" button to display air conditioners that are not registered on your smartphone. Figure 3-12 The air conditioner name ( locations) displays ◯...

  • Page 47: Wireless Lan Settings Of Air Conditioner

    '21 • SRK-T-324 • Wireless LAN settings of air conditioner If your wireless LAN router does not support WPS, manually make wireless LAN settings of your air conditioner. Set the wireless LAN interface to the AP mode, and then change the Wi-Fi connection destination of your smartphone to “Smart-M-Air-XXXX”.
  • Page 48 '21 • SRK-T-324 When you tap the network you want to set from the displayed list, the SSID appears in the "SSID" entry field at the bottom of the screen, enter "Your home Wi-Fi password" below it, and tap in the upper right. If the network you want to set is not displayed in the list, enter "SSID"...

  • Page 49: Naming Air Conditioner

    '21 • SRK-T-324 • Naming air conditioner If you want to change the name of the air conditioner displayed in the application such as the air conditioner list screen, tap "Details" to display the detailed screen of the air conditioner. Figure 3-19 Press and hold down (1 sec) an air conditioner name.
  • Page 50 '21 • SRK-T-324 Figure 3-21 Enter a new air conditioner name and tap [YES]. Figure 3-22 Figure 3-23 - 15 -...

  • Page 51: Basic Usage

    '21 • SRK-T-324 4. Basic Usage • Starting / Stopping air conditioner operation To start or stop the operation, tap the [ON] / [OFF] button of the air conditioner that you want to operate on the “Air Conditioner List” screen. When the button color changes, switching is complete.

  • Page 52: Changing Temperature

    '21 • SRK-T-324 To change the “Operation mode”, tap each mode from “Auto” to “Dry”. Figure 4-3 • Changing temperature To set a desired temperature, tap The current set temperature appears in the circle. Figure 4-4 - 17 -...

  • Page 53: Changing Fan Speed And Airflow Direction

    '21 • SRK-T-324 When the operation mode is Fan, Set temp. shows "-". Figure 4-5 • Changing fan speed and air flow direction to change settings. Figure 4-6 - 18 -...

  • Page 54: Using Favourites

    '21 • SRK-T-324 5. Using Favourites Register your desired settings of “Set temp”, “Operation mode”, “Fan”, “Up / Down” and “Left / Right” with Favourite. Tapping the [Favourite] button changes the current settings to the registered settings. On the air conditioner details screen, press and hold down (1 sec) the [Favourite 1] or [Favourite 2] button.
  • Page 55 '21 • SRK-T-324 When you tap the [Favourite 1] or [Favourite 2] button, the current settings are changed to the favourite settings you tapped. Figure 5-3 - 20 -...

  • Page 56: Using Options

    '21 • SRK-T-324 6. Using Options You can make various option settings such as alerts and LED lighting, and check the number of accounts registered with an air conditioner. Home restricted mode : Only “Home leave mode”, “Cooling specific”, and “LED ON” are operable. Demo mode : Options are not operable.

  • Page 57: Shut-Off Reminder Alert

    '21 • SRK-T-324 Only "LED ON" is ON by default. Switch between [ON] and [OFF], and tap on the top right of the screen to save the settings you changed. Note • Shut-off reminder alert, AC error notification, Hi temp / low temp alert, Watching function, Home leave mode can be used with "Remote operation mode".

  • Page 58: Air-Conditioner Error Notification

    '21 • SRK-T-324 ■ To not to receive alerts, tap [OFF]. When the pop-up message “If your external location is disabled, it cannot be retrieved. Do you want to disable the external location?” appears, tap [YES] and then tap on the top right.

  • Page 59: Hi Temp / Low Temp Alert

    '21 • SRK-T-324 • Hi temp / low temp alert When your smartphone reaches the specified high/low temperature condition, a push notification is sent to the smartphone application. ■ To receive alerts, tap [ON] and enter the high and low temperatures and then tap on the top right.

  • Page 60: Watching Function

    '21 • SRK-T-324 • Watching function When the air conditioner is controlled other than your smartphone, an e-mail is sent to the registered e-mail address. Note Note • The notification also applies to the operation with the timer of the air conditioner itself and the end of internal clean operation.

  • Page 61: Cooling Specific

    '21 • SRK-T-324 • Cooling specific If you set it as an air conditioner for cooling only, you won't be able to use the heating in the smartphone application. ■ To use “Cooling specific”, tap [ON] and then tap on the top right.

  • Page 62: Setting Weekly Timer

    '21 • SRK-T-324 7. Setting Weekly Timer Makes the timer setting for every day of the week. Tap [Weekly Timer] on the lower part of the air conditioner details screen. The “Weekly Timer” screen appears. Figure 7-1 on the top right of the screen to save the settings you changed. Tap the day of the week you want to set to display the timer list for that day of the week.
  • Page 63 '21 • SRK-T-324 A disabled timer shows the time and operation mode only. Tap the switch at to enable and edit. Edit each item and tap Edit each item and tap on the top right to on the top right to set the timer on the target day.

  • Page 64: Setting Timer By Specifying Date Via Calendar

    '21 • SRK-T-324 8. Setting Timer by Specifying Date via Calendar When you set the weekly timer, the same timer is applied to the same day every week. To turn off the timer or set the timer of a different day on a certain day, set individually from the “Calendar”...

  • Page 65: Clear The Timer Set From The Calendar

    '21 • SRK-T-324 Tap the date of the calendar. Select the timer of the day of the week that you want to apply from “Weekly Timer Settings” and tap “Weekly Timer Settings” and tap on the on the top right of the screen. If you select “OFF”...
  • Page 66 '21 • SRK-T-324 From “Weekly Timer Settings”, select the same day of the week as the date to clear and tap Figure 8-4 When cleared, the background of the date is displayed in white. Figure 8-5 - 31 -...

  • Page 67: Displaying Electricity Bill Graph

    '21 • SRK-T-324 9. Displaying Electricity Bill Graph Displays an electricity bill by month on a graph. You can also set the electricity unit cost. Note Depending on the type of air conditioner you connect, the function may be disabled. Tap [Electricity Bill Graph] on the lower part of the air conditioner details screen.

  • Page 68: Updating Firmware

    '21 • SRK-T-324 10. Updating Firmware If the firmware of your wireless LAN interface is not up to date, an exclamation mark appears on the “Air Conditioner List” screen. ！ Tap [Details] to display the air conditioner details screen. Figure 10-1 Tap the [Firmware update] button.
  • Page 69 '21 • SRK-T-324 Tap [YES] to update the firmware to the latest one. The firmware update takes 10 minutes (Max). The operation from the application is not accepted during that period. If after 10 minutes (Max) the "Firmware update" button appears, retry the firmware update. Figure 10-3 When the firmware becomes up to date, the firmware version appears instead of the...

  • Page 70: Main Menu

    '21 • SRK-T-324 11. Main Menu Tap the menu button ( ) that appears on the top left in the screen such as “Air Conditioner List”, to display the main menu. ■ Air Conditioner List : Operates or sets an Air conditioner.

  • Page 71: Canceling Demo Mode

    '21 • SRK-T-324 • Canceling demo mode In the demo mode Cancel demo : Exits the demo mode. Figure 11-2 - 36 -...

  • Page 72: Checking Alerts

    '21 • SRK-T-324 12. Checking Alerts Open the main menu and tap [Alerts]. Figure 12-1 A list of alerts appears. Tap each alert to display the alert details screen and check it. appears to the alert that is not checked in the alert details screen.
  • Page 73 '21 • SRK-T-324 Figure 12-3 - 38 -...

  • Page 74: Changing Application Settings

    '21 • SRK-T-324 13. Changing Application Settings Open the main menu and tap [App Settings]. Figure 13-1 The “Application Settings” screen appears. ■ Switch Operation Modes: Switches between the remote operation mode and home restricted mode. → To “Switch Operation Modes” ■...

  • Page 75: Switch Operation Modes

    '21 • SRK-T-324 Note • In "Home restricted mode", you cannot operate "Password Settings". In "Try a Demo", only "Language/Time Zone Settings" and "Application Version Display" can be operated. Functions that cannot be operated are displayed in gray, and nothing is displayed even if you tap them.

  • Page 76: Switching To "Home Restricted Mode

    '21 • SRK-T-324 When the account creation pop-up message appears, tap [OK], agree with the handling of personal information, and create an account. → To “Creating user account” Figure 13-4 • Switching to “Home restricted mode” Tap [Home restricted mode] → Tap on the top right to switch the mode.
  • Page 77 '21 • SRK-T-324 The popup for remote control disabled and the popup for deleting server data will appear, so tap [YES]. Figure 13-6 Figure 13-7 When the operation mode switching completion pop-up message appears, tap [OK]. Figure 13-8 - 42 -...

  • Page 78: Reset Password

    '21 • SRK-T-324 • Reset Password Enter the registered e-mail address and tap the [Issue code] button. Note • After tapping the [Issue code] button, keep this screen displayed until the password resetting is completed. If you tap and return to the previous screen, these operations are canceled.
  • Page 79 '21 • SRK-T-324 An e-mail with a security code will be sent to the e-mail address you entered. Enter “Security code” and “New password” and tap [Reset Password] ××××××××××@×××××.jp to update your password. Note • A password must be between 8 to 16 012345 characters including at least one alphabetic character and one numeric character.

  • Page 80: Language/Time Zone Settings

    '21 • SRK-T-324 • Language/Time Zone Settings The “Language/Time Zone Settings” screen appears. Select a language to use in the application. Select a time zone. Select the time zone in which the air conditioner to operate via the application exists. Finally, tap on the top right to complete the setting.

  • Page 81: Application Initialization

    '21 • SRK-T-324 • Application Initialization Initializes the smartphone application. Note • Note that if you initialize the application in “Remote operation mode”, the information of the account logged in is deleted. Tap [Initialize the application]. Figure 13-14 - 46 -...
  • Page 82 '21 • SRK-T-324 When the pop-up message “Your account information will be deleted. Do you want to initialize the application?” appears, tap [YES]. Figure 13-15 When the pop-up message "Initialization is complete. Close the application." appears, tap [OK] to close the application. Figure 13-16 - 47 -...

  • Page 83: Application Version Display

    '21 • SRK-T-324 • Application Version Display Displays the version of your smartphone application. Figure 13-17 - 48 -...

  • Page 84: Troubleshooting

    '21 • SRK-T-324 14. Troubleshooting • When the air conditioner that you want to register does not appear in the air conditioner list screen Tap the [Find unregistered Air Conditioners] Button to search unregistered air conditioners and update the “Air Conditioner List” screen. Figure 14-1 •...

  • Page 85: When An Abnormality Notification Appears In The Air Conditioner List

    '21 • SRK-T-324 When the deleting air conditioner pop-up Message appears, tap [YES]. Figure 14-3 • When an abnormality notification appears in the air conditioner list When an abnormality notification appears, air conditioner abnormality has been detected. Contact your dealer. When “AC error notification”...

  • Page 86: When You Forget Your Password And Cannot Log In

    '21 • SRK-T-324 • When you forget your password and cannot log in If you forgot your password and failed to log in, tap [OK] on the pop-up message, tap [If you forgot your password] to display the “Reset Password” screen, and set a new password.
  • Page 87 5 The Square, Stockley Park, Uxbridge, Middlesex, UB11 1ET, United Kingdom Tel : +44-333-207-4072 Fax: +44-333-207-4089 http://www.mhiae.com/ MHIAE SERVICES B.V. (Wholly-owned subsidiary of MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONING EUROPE, LTD.) Herikerbergweg 238, Luna ArenA, 1101 CM Amsterdam, Netherlands P.O.Box 23393 1100 DW Amsterdam, Netherlands Tel : +31-20-406-4535 http://www.mhiaeservices.com/ MITSUBISHI HEAVY INDUSTRIES AIR-CONDITIONERS AUSTRALIA, PTY.

  • Page 88: Faq (Troubleshooting)

    Usage conditions How can I install the application? Install the application as shown in the table below. Can I remotely operate any of Mitsubishi Heavy Industries Thermal Systems' air conditioners? You can operate products manufactured in 2010 or later excluding the housing series.
  • Page 89 '21 • SRK-T-324 I cannot update the application to the latest one. What should I do? Your smartphone's OS may be out of date. The supported OS are: Android : Version 8 or 10 : Version 12 or 14 * Operation on other versions is not guaranteed. Can I operate one air conditioner with multiple smartphones? You can operate it with up to four smartphones.
  • Page 90 '21 • SRK-T-324 Can I use the ping command to test the response from an air conditioner? The ping command is not supported for response check. What is the communication port number? No port number is specified. Can I use a mobile Wi-Fi router and the like? Operation with a mobile Wi-Fi router and the like is not guaranteed.
  • Page 91 '21 • SRK-T-324 Functionality What is the e-mail address and password used to create an account of "Remote operation mode"? Set an e-mail address that you want to receive the air conditioner information. You are recommended to set the e-mail address that can be viewed on your smartphone.
  • Page 92 '21 • SRK-T-324 Can I update the firmware of the wireless LAN interface? You can update it with the smartphone application. No push notification or e-mail is sent to my smartphone, such as a shut-off reminder alert and watching function. Check that each notification function is turned "ON"...
  • Page 93 '21 • SRK-T-324 The smartphone application does not work. Check the following: ・Update the application to the latest version, and upgrade to the 　recommended OS. ・Quit all applications running in the background. ・Check that the OS is compatible with the latest application. 　If the OS is incompatible, upgrade the OS and install the application 　again.
  • Page 94 '21 • SRK-T-324 The air conditioner has stopped automatically. Check the following: ・Check if another user is operating. ・Check that the timer is set. ・Check if any abnormality occurred on the air conditioner. 　When remote control is enabled, an e-mail is sent to the registered e-mail 　address or displayed on the application.
  • Page 95 '21 • SRK-T-324 I bought a new wireless LAN access point. Can I operate it with my smartphone without change? No. Connect the wireless LAN interface and the wireless LAN access point. I accidentally deleted the application from my smartphone. I installed the application again.
  • Page 96 '21 • SRK-T-324 What can I do with the app other than driving (On/Off)? Changing the operating mode (Auto, Cool, Heat, Fan, and Dry) You can operate air volume, wind direction, temperature setting, timer operation, and other optional functions. For details, refer to "Smart M-Air Operation Manual". Can I set up clean or power save operation with the application? You cannot set it in the application.
  • Page 97 '21 • SRK-T-324 You cannot operate it even if you operate the application. (Not updated) Depending on the wireless LAN connection environment, it may fail to recognize the wireless LAN interface. In this case, you may be able to operate by the following operations. ・Tap the Refresh button.
  • Page 98 '21 • SRK-T-324 Unable to update firmware. Firmware update is not available during operation or clean operation (Fan operation indication). Turn off the air conditioner before updating the firmware. Depending on the wireless LAN connection environment, it may fail to recognize the wireless LAN interface.

  • Page 99: Timer Function Operation Explanation

    '21 • SRK-T-324 11. TIMER FUNCTION OPERATION EXPLANATION (1) Overview This section describes the indoor operation statuses in which the timer is set by the wireless remote control when an optional device is connected (wired remote control, remote control device, etc.). Depending on the type of indoor unit, there are the following 2 types of indoor operation status.
  • Page 100 '21 • SRK-T-324 (Running) (Stop) Ex. 1 Timer setting time elapsed Timer setting time elapsed ① Standby ②Warming-up ③Timer ON (→Running) ④Timer OFF Timer control signal from the wireless running running (→Stopped) ▽ ▽ remote control ＯＮ RUN LED ＯＦＦ ＯＮ...
  • Page 101 '21 • SRK-T-324 (3) Indoor unit operation status before and after receiving a signal from the wireless remote control [Indoor unit with a timer setting enabled from an optional device] For each indoor operation status including timer settings, the indoor run/stop status when the run/stop signal was changed due to operation or timer settings from an optional device is shown in the table below.
  • Page 102 MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD. 2-3, Marunouchi 3-chome, Chiyoda-ku, Tokyo, 100-8332, Japan http://www.mhi-mth.co.jp/en/ Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

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