Toshiba MMY-MUP0721HT6P-UL User Manual

Toshiba MMY-MUP0721HT6P-UL

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1140602001

AIR CONDITIONER (MULTI TYPE)

Owner’s Manual

Outdoor Unit

Model name:

MMY-MUP0721HT6P-UL MMY-MUP0721HT9P-UL

MMY-MUP0961HT6P-UL MMY-MUP0961HT9P-UL

MMY-MUP1201HT6P-UL MMY-MUP1201HT9P-UL

MMY-MUP1441HT6P-UL MMY-MUP1441HT9P-UL

MMY-MUP1681HT6P-UL MMY-MUP1681HT9P-UL

MMY-MUP1921HT6P-UL

MMY-MUP072H1HT6PUL MMY-MUP072H1HT9PUL

MMY-MUP096H1HT6PUL MMY-MUP096H1HT9PUL

MMY-MUP120H1HT6PUL MMY-MUP120H1HT9PUL

<Heat Pump Model>

R410A

For OUTDOOR USE only

Pour une UTILISATION EN EXTÉRIEUR

uniquement

Solo para USO EXTERIOR

Manual del Propietario 41

Owner’s Manual 1

Español

English

Français

Manuel du Propriétaire 21

1140602001_EN FR ES.indb c11140602001_EN FR ES.indb c1 4/22/23 4:50 PM4/22/23 4:50 PM

Table of Contents

Questions and Answers:

K
kimberly22Aug 18, 2025
Why does my Toshiba MMY-MUP0721HT6P-UL Air Conditioner remote controller display a check code?
- D
  Denise UnderwoodAug 18, 2025
  A check code on your Toshiba Air Conditioner remote controller can appear due to several reasons: * The outdoor power might be off. Ensure the header outdoor unit power is on. * There could be address setup issues, such as undefined or mismatched line addresses, duplicated indoor addresses, or a missing header unit in group control. Try setting up the address again. * The terminator resistor setting might be incorrect. Check SW100 bit 1 or bit 2 of the header unit.
T
Tiffany RodriguezAug 20, 2025
What to do if my Toshiba MMY-MUP0721HT6P-UL Air Conditioner displays a check code due to duplicated indoor addresses?
- G
  gkennedyAug 20, 2025
  If your Toshiba Air Conditioner displays a check code related to duplicated indoor addresses, specifically when the address number in the subcode of the check code are duplicated, you should set up the address again to resolve the conflict.
R
Robert BartonAug 22, 2025
How to fix a Toshiba MMY-MUP0721HT6P-UL check code caused by incorrect terminator resistor settings?
- B
  bonnie06Aug 23, 2025
  To resolve a Toshiba Air Conditioner check code related to incorrect terminator resistor settings: * Check SW100 bit 1 or bit 2 of the header unit. * If there's no connection between multiple refrigerant lines, turn off SW100 bit 1 and turn on bit 2. * If there's a connection, turn on SW100 bit 1 of only the connected header unit for one line and turn on SW100 bit 2 of all the header units.
C
Christopher PerkinsAug 26, 2025
What to do if my Toshiba MMY-MUP0721HT6P-UL Air Conditioner shows a check code after address setup?
- L
  Lisa StephensAug 26, 2025
  If your Toshiba Air Conditioner shows a check code after address setup, it might be due to interrupted communication from all indoor units. Check and correct any disconnection of the indoor/outdoor communication line, especially between the header unit and the leading indoor unit. Also, check for the influence of communication noise. In the TU2C-LINK communication system, ensure the termination resistance is properly set in all indoor units.
M
Ms. Crystal JarvisAug 27, 2025
What to do if my Toshiba MMY-MUP0721HT6P-UL Air Conditioner displays a check code due to incorrect terminator resistor settings?
- J
  Jasmin CherryAug 27, 2025
  If your Toshiba Air Conditioner displays a check code due to incorrect terminator resistor settings, especially if communication with an outdoor unit from another refrigerant line cannot be performed when the power is turned on, you should: * Check the connection of the Uh (U3/U4) communication line. * Check whether there is a defect on the outdoor unit interface P.C. board. * Check the setting of the terminator resistor.
J
john14Aug 30, 2025
What causes a Toshiba MMY-MUP0721HT6P-UL Air Conditioner check code related to a decreased number of connected outdoor units?
- Z
  Zoe WilkinsonAug 30, 2025
  A check code on your Toshiba Air Conditioner can occur if the number of connected outdoor units has decreased, especially when installing an outdoor backup or if the power of a follower unit is not turned on. To resolve this: * Correct the cause of the trouble. * If it occurs when installing a backup, clear the trouble after setup finishes. * If the power of a follower unit is not turned on, ensure it is turned on.
A
Anita LeeSep 1, 2025
What to do if my Toshiba Air Conditioner displays a check code due to duplicated outdoor line addresses?
- N
  nataliebellSep 1, 2025
  If your Toshiba Air Conditioner displays a check code because of duplicated outdoor line addresses, especially after connection between U1/U2 and U3/U4 connectors, modify the line address setup of the header unit between lines by setting up SW13 and SW14 on the interface PC board.
J
Jacqueline IngramSep 4, 2025
What to do if my Toshiba Air Conditioner displays a check code due to duplicated indoor units with priority?
- C
  connorstoneSep 4, 2025
  If your Toshiba Air Conditioner displays a check code because of duplicated indoor units with priority, ensure that priority is set up for only one indoor unit to resolve the conflict.
W
William HoffmanSep 6, 2025
How to fix a Toshiba Air Conditioner check code when indoor addresses are undefined?
- K
  Karen HughesSep 6, 2025
  If your Toshiba Air Conditioner displays a check code because the indoor addresses of all connected indoor units are undefined, you should set up the addresses again and modify the setup to ensure each unit has a unique and defined address.
K
Kyle PattonSep 9, 2025
What to do if my Toshiba MMY-MUP0721HT6P-UL displays a check code due to duplication of outdoor addresses?
- T
  Tammie GriffinSep 9, 2025
  If your Toshiba Air Conditioner displays a check code because of duplicated outdoor addresses, especially if an outdoor address was manually set up, refrain from using manual setup for outdoor addresses.

Toshiba MMY-MUP0721HT6P-UL Specifications

General

Hertz (Hz)	60
EER (Cooling)	12.5
Type	Heat Pump
Voltage (V)	208/230
Refrigerant	R410A

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