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Michael NelsonSep 15, 2025
What does error code P31 mean on my Toshiba VN-U01001SY-E?
- Aandrew52Sep 15, 2025
Error code P31 on your Toshiba Fan means that another indoor unit in the group is raising an alarm.
To Next PageTo Next PageWhat does error code P31 mean on my Toshiba VN-U01001SY-E?
Error code P31 on your Toshiba Fan means that another indoor unit in the group is raising an alarm.
What to do if the damper does not open or close in Toshiba Fan?
If your Toshiba Fan's damper isn't opening or closing, there might be a few reasons. First, check for loose connections and connect them firmly or replace the assembled connector with a new one. If the coil of the damper motor is broken, you'll need to replace the damper motor. Finally, check for any obstructions on the sliding part and remove them.
Why is the motor not running fast enough on my Toshiba VN-U01001SY-E Fan?
If your Toshiba Fan's motor isn't running fast enough, it could be due to the motor bearing not running smoothly. In this case, replace the motor with a new one.
Why does my Toshiba VN-U01001SY-E Fan start running by itself?
If your Toshiba Fan starts running without you operating the remote controller, it could be because the unit has just recovered from a power failure or you've just turned on the circuit breaker. The settings concerning recovering from power failure or start/stop by power on/ off are set to CODE No. [28] [9D] “ON”. Consult your dealer for details.
What to do if the operation lamp does not turn on in Toshiba VN-U01001SY-E?
If the operation lamp does not turn on, check if the “ ” or “ ” indicator appear on the display. The nighttime heat purge operation or 24-hour ventilation is set to CODE No. [4C] [49] “ON”. See section “6. Control outline No.4 and No.8” for specification outline.
What does error L08 mean on a Toshiba Fan?
Error L08 on your Toshiba Fan indicates an indoor address setting trouble, meaning the indoor address group has not been set.
What does error L03 mean on a Toshiba VN-U01001SY-E Fan?
Error L03 on your Toshiba Fan indicates an indoor address setting trouble, meaning there are two or more header units in the group.
What does error E18 mean on my Toshiba VN-U01001SY-E Fan?
Error E18 on your Toshiba Fan indicates an issue with the indoor PC board. Regular communication is not possible between header and follower indoor units, or between twin header (main) and follower (sub) units.
What does error E11 mean on my Toshiba VN-U01001SY-E?
Error E11 on your Toshiba Fan indicates a communication problem between the Application control kit and the indoor unit. Start by checking the connector on the indoor unit (CN521 (red)) for the Application control kit. Then, check the connection of the indoor-Application control kit communication line. After that, inspect the indoor PC board and the Application control kit PC board.
How to fix communication trouble between control PC board on Toshiba VN-U01001SY-E Fan (Error E10)?
If your Toshiba Fan displays error E10, it indicates a communication issue between the control PC board. First, check the connectors on the indoor unit (CN520 (blue) and CN570 (blue)). Then, inspect the communication line between the indoor unit control PC board and the Branch PC board for UART. Finally, check both the indoor control PC board and the Branch PC board of UART for any defects.
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