What does 'L05' mean on my Toshiba MMY-MAP1204 and how to fix it?
If indoor units are indicating “L05” on your Toshiba Air Conditioner, and a check code is displayed, it means there are two or more indoor units set up with priority. Among those units, set only one with priority.
How do I resolve a Toshiba MMY-MAP1204 Air Conditioner check code when all connected indoor unit addresses are undefined?
If your Toshiba Air Conditioner displays a check code because all connected indoor unit addresses are undefined, set up the addresses again and modify the setup.
What does it mean when my Toshiba Air Conditioner displays a check code because there is no outdoor terminal resistance?
If your Toshiba Air Conditioner displays a check code because there is no outdoor terminal resistance, or there are two or more resistances, check SW30 bit 2 of the header unit. If there is no connection between multiple refrigerant lines, SW30 bit 2 should be on. If there is a connection, SW30 bit 2 of the connected header unit should be turned on only for one line.
General| Brand | Toshiba |
|---|---|
| Model | MMY-MAP1204 Series |
| Category | Air Conditioner |
| Language | English |
Defines allowable lengths for refrigerant pipes and height differences between units.
Step-by-step guide to calculate the extra refrigerant needed for local piping.
Procedure for resetting addresses using a wired remote controller.
Procedure for resetting all indoor unit addresses from the outdoor unit.
Troubleshooting guide for error codes displayed on the remote controller.
Procedure to clear errors using the main remote controller.
Clearing errors using switches on the header unit's interface board.
Clearing errors by resetting the power supply to the system.
Procedure to back up a faulty compressor using remaining compressors.
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