Toshiba MMY-MAP0804FT8(ZG)-E User Manual (English)

Questions and Answers:

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Erica MillerJul 31, 2025
Why is my Toshiba MMY-MAP0804FT8(ZG)-E Air Conditioner not responding to the remote and showing a check code?
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  Diane BuckJul 31, 2025
  If your Toshiba Air Conditioner isn't responding to the indoor remote controller and a check code is on the 7-segment display of the interface PC board, it might be because there is no header unit of group control. Set up a group address. Also, make sure the line and indoor addresses of all connected indoor units are set up.
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Erica GrayAug 4, 2025
Why is a check code displayed on my Toshiba MMY-MAP0804FT8(ZG)-E remote controller?
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  jonathanandersonAug 5, 2025
  If a check code is displayed on your Toshiba Air Conditioner's remote controller, it could be due to several reasons. First, ensure that the outdoor unit power is on. Address setup errors, such as undefined or mismatched line addresses, or duplicated indoor addresses, can also cause this issue; in such cases, set up the address again. Also, verify the terminal resistance setup by checking SW30 bit 2 of the header unit to ensure correct connections between refrigerant lines. Finally, check for any disconnections in the indoor/outdoor communication line and ensure that the number and capacity of connected indoor units are within the specified limits.
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chelseaparkerAug 8, 2025
What does a check code on my Toshiba MMY-MAP0804FT8(ZG)-E Air Conditioner mean?
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  Jason FuentesAug 8, 2025
  If your Toshiba Air Conditioner is showing a check code, it might be due to a transmission circuit error at the interface side. In this case, replace the interface PC board. Also, check that the outdoor unit power is on. If the addresses of the connected indoor units are undefined, or if the outdoor and indoor unit line addresses don't match, you'll need to set up the address again.
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Gary FrazierAug 13, 2025
Why does my Toshiba MMY-MAP0804FT8(ZG)-E keep showing a check code?
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  Samantha GillAug 13, 2025
  If a check code appears on your Toshiba Air Conditioner's remote, it could be due to communication issues between the outdoor units. Verify the number of connected outdoor units and ensure their power is on. Also, check that the header outdoor unit power is on. Address setup errors, such as undefined or mismatched line addresses, or duplicated indoor addresses, can also cause this issue; in such cases, set up the address again.
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pmartinAug 17, 2025
What to do if Toshiba Air Conditioner shows a check code after installing a backup?
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  Donald RossAug 17, 2025
  If you see a check code on your Toshiba Air Conditioner, and you've recently installed an outdoor backup or the power of a follower unit isn't on, this could be the cause. Correct the cause of the error. If it occurs when installing a backup, clear the error after setup finishes. If the power of a follower unit is not turned on, turn on the power.
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Katherine AllenAug 21, 2025
How to resolve line address errors causing a check code on my Toshiba MMY-MAP0804FT8(ZG)-E?
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  qtaylorAug 21, 2025
  If your Toshiba Air Conditioner is showing a check code, and you've connected U1/U2 and U3/U4 connectors, it could be due to duplication of outdoor line addresses or a line address setup error. Modify the line address setup of the header unit between lines by setting up SW13 and SW14 on the interface PC board. Also, check that the header outdoor unit power is on.