To Next PageTo Next PageWhat to do if the OFF timer indicator shows a check code and indoor unit number on my Toshiba MMU-UP0301HP-E Air Conditioner?
If the OFF timer indicator on your Toshiba Air Conditioner is alternately displaying a check code and the indoor unit number, check the troubleshooting history by pressing the OFF timer button for more than 10 seconds.
General| Brand | Toshiba |
|---|---|
| Model | MMU-UP0301HP-E |
| Category | Air Conditioner |
| Language | English |
Defines the qualifications and knowledge required for qualified installers and service personnel.
Details the protective gear required for various work tasks, including general and specific safety clothing.
Explains the meaning and importance of warning labels found on the air conditioner unit.
Highlights dangers of electric shock and mandatory safety measures before performing work.
Provides general warnings regarding refrigerant handling, electrical work, and working at heights.
Detailed technical specifications for 4-way cassette type indoor units.
Detailed technical specifications for ceiling type indoor units.
Detailed technical specifications for concealed duct standard type indoor units.
Detailed technical specifications for concealed duct high static pressure type indoor units.
Detailed technical specifications for concealed duct high static pressure fresh air intake type units.
Detailed technical specifications for console type indoor units.
Detailed technical specifications for high wall type indoor units.
External views and dimensions for 4-way cassette type indoor units.
External views and dimensions for ceiling type indoor units.
External views and dimensions for concealed duct standard type indoor units.
External views and dimensions for concealed duct high static pressure type indoor units.
External views and dimensions for concealed duct high static pressure fresh air intake type units.
External views and dimensions for console type indoor units.
External views and dimensions for high wall type indoor units.
Wiring diagram for the 4-way cassette type indoor unit.
Wiring diagram for the ceiling type indoor unit.
Wiring diagram for the concealed duct standard type indoor unit.
Wiring diagram for the concealed duct high static pressure type indoor unit.
Wiring diagram for concealed duct high static pressure fresh air intake type units.
Wiring diagram for the console type indoor unit.
Wiring diagram for the high wall type indoor unit.
Parts list and rating for 4-way cassette type indoor units.
Parts list and rating for ceiling type indoor units.
Parts list and rating for concealed duct standard type indoor units.
Parts list and rating for concealed duct high static pressure type indoor units.
Parts list and rating for concealed duct high static pressure fresh air intake type units.
Parts list and rating for console type indoor units.
Parts list and rating for high wall type indoor units.
Diagram illustrating the refrigerant cycle for the indoor unit and functional parts.
Details how the system behaves when power supply is reset.
Explains how to select operation modes via remote controller commands.
Covers adjustment ranges for room temperature control via remote controller.
Describes fan speed selection based on remote control commands and temperature differences.
Details freeze prevention control logic based on TC1, TC2, and TCJ sensor readings.
Details communication types (TU2C-Link, TCC-Link) and corresponding model names.
Explains wiring and unit connection changes when combining TU2C-Link and TCC-Link systems.
Block diagram illustrating the connections for MCC-1643 indoor controller with wired remote.
Block diagram illustrating the connections for MCC-1720 indoor controller with wired remote.
Block diagram illustrating the connections for MCC-1696 indoor controller with wired remote.
Detailed diagrams of the indoor unit print circuit boards (MCC-1643, MCC-1720, MCC-1696).
Procedure for performing cooling/heating test runs using wired and wireless remote controllers.
Step-by-step guide for setting indoor unit functions and DN codes via remote controller.
Details on control systems using remote location ON/OFF control boxes.
General information on troubleshooting, applicable models, tools, and normal behaviors.
Methodology for identifying trouble sites using check codes and displays.
Guide to troubleshooting issues based on information displayed on the remote controller.
Lists check codes displayed on remote controllers and outdoor units with troubleshooting steps.
Flowcharts for diagnosing common check codes for indoor units.
Graphs and tables showing resistance characteristics of various indoor unit sensors.
Recommended maintenance schedule for indoor and outdoor units.
Procedures for replacing the indoor unit P.C. board, including data backup and restoration.
Step-by-step procedures for detaching parts of the 4-way cassette type indoor unit.
Step-by-step procedures for detaching parts of the ceiling type indoor unit.
Step-by-step procedures for detaching parts of the concealed duct standard type indoor unit.
Step-by-step procedures for detaching parts of the concealed duct high static pressure type indoor unit.
Step-by-step procedures for detaching parts of the concealed duct high static pressure fresh air intake type units.
Step-by-step procedures for detaching parts of the console type indoor unit.
Step-by-step procedures for detaching parts of the high wall type indoor unit.
Exploded view and parts list for 4-way cassette type indoor units.
Exploded view and parts list for ceiling type indoor units.
Exploded view and parts list for concealed duct standard type indoor units.
Exploded view and parts list for concealed duct high static pressure type indoor units.
Exploded view and parts list for concealed duct high static pressure fresh air intake type units.
Exploded view and parts list for console type indoor units.
Exploded view and parts list for high wall type indoor units.
