Toshiba MMY-MAP0726FT2P-UL User Manual (English)

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Questions and Answers:

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Sharon HarrisJul 25, 2025
Why does my Toshiba MMY-MAP0726FT2P-UL display a check code when the outdoor power is off?
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  Jonathan EnglishJul 25, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, first, verify that the header outdoor unit power is on. If the outdoor power is off, this could be the cause. If the power of a follower unit is not turned on, turn on the power.
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Amanda MartinezJul 30, 2025
What to do if my Toshiba MMY-MAP0726FT2P-UL displays a check code due to exceeding the number of connected units?
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  banksbrentJul 30, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it could be due to exceeding the number or capacity of connected indoor units. In this case, adjust the number or capacity of connected indoor units.
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Sarah RossAug 3, 2025
What to do if my Toshiba MMY-MAP0726FT2P-UL Air Conditioner displays a check code due to communication issues between indoor and FS units?
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  jacquelinerobinsonAug 3, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it might be caused by communication trouble between indoor unit(s) and FS unit(s). To resolve this, check the order in which power was turned on and inspect the indoor unit(s)-FS unit(s) cable.
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Christine MartinAug 7, 2025
What does it mean when my Toshiba MMY-MAP0726FT2P-UL Air Conditioner displays a check code related to FS unit installation?
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  Leah BondAug 7, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it may be due to FS unit(s) installation trouble. Set up only Multi port type and single port type (Long piping model) FS unit(s) to 36 ton or more system. Also, check FS units address and indoor units operation mode priority setting.
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Nathan PittsAug 11, 2025
How to check the terminator resistor on my Toshiba MMY-MAP0726FT2P-UL Air Conditioner if a check code is displayed?
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  Donald RossAug 11, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it may be due to the absence of an outdoor terminator resistor or the presence of two or more terminator resistors. Check SW30 bit 2 of the header unit. No connection between multiple refrigerant lines: SW30 bit 2 is on. Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.
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Brenda SmithAug 16, 2025
What to do if a check code appears on my Toshiba MMY-MAP0726FT2P-UL Air Conditioner due to a PC board failure?
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  Emily BensonAug 16, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it could be due to a transmission circuit trouble at the interface side (PC board failure). In this case, replace the interface PC board.
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Kelsey TaylorAug 20, 2025
What should I do if my Toshiba MMY-MAP0726FT2P-UL Air Conditioner displays a check code after communication from all indoor units is interrupted?
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  Wanda HillAug 20, 2025
  If a check code appears on your Toshiba Air Conditioner's remote controller, it could be due to communication from all the indoor units being interrupted after address setup. Check and correct disconnection of the indoor/ outdoor communication line (the communication line between the header unit and the leading indoor unit). Also, check for the influence of communication noise.