All brands Wall-mounted splits fault codes
The common domestic arrangement — one indoor unit on a wall, one outdoor unit, refrigerant pipes between them. No display, so everything is read through the remote or the lights.
Codes on the Wall-mounted splits follow the same All brands scheme as the rest of the range. Where a code behaves differently on this generation, the code page says so.
All brands fault codes
Every published All brands code. Open a code to see which models and years it applies to.
- Water dripping from the indoor unitUsually a blocked drain rather than a failed pump. Mitsubishi say so directly: their pump runs constantly in cooling and rarely fails.Get it checked
- Not blowing coldCheck the filter before anything else. A blocked one does not look like a dirty filter — it looks like poor cooling, icing, or a refrigerant fault.Get it checked
- How to get the fault codeThere is no display, so you have to ask the unit. Every brand does it differently, and Toshiba's handbook says to read the code before cutting the power.Usually simple to fix
- Outdoor unit not runningUsually not dead at all. A restart delay, a defrost or a satisfied room stops the outdoor unit by design, and on a domestic split a lit indoor unit means the supply is on.Get it checked