Toshiba air conditioner indicator lamps and blink codes
Many units show a fault only by blinking lamps. Find the pattern you see, then open the code.
| Code | How it shows | Meaning |
|---|---|---|
| 04 | LED display: Operation and timer display flashing at 5Hz | Inter. Cable |
| 09 | LED display: Operation, timer and pre-heat display flashing at 5Hz | No change in temp. of indoor unit |
| 0C | LED display: Operation display flashing at 5Hz | TA Sensor short circuit |
| 0D | LED display: Operation display flashing at 5Hz | TC Sensor fault |
| 11 | LED display: Operation display flashing at 5Hz | Fan motor fault |
| 12 | LED display: Operation display flashing at 5Hz | PCB Fault |
| 14 | Outdoor LED display: *○*●●○ | Driving element short circuit |
| 16 | Outdoor LED display: *○*○*●●○ | Position detection circuit error |
| 17 | Outdoor LED display: *●○ | Current detection circuit error |
| 18 | Outdoor LED display: *○*○*○*●○ | TE Sensor open circuit |
| 19 | Outdoor LED display: *○*●○ | TL or TD Sensor open circuit |
| 1A | Outdoor LED display: *●○*●○ | Fan system error |
| 1B | Outdoor LED display: *●○*○*●○ | Outdoor air temperature sensor (TO) error |
| 1C | Outdoor LED display: *●●●●○ LED display (A room gas side temp. sensor TGa error): *○ LED display (B room gas side temp. sensor TGb error): *●●●○*○ LED display (C room gas side temp. sensor TGc error): *●●○*○ | Compressor case thermostat error |
| 1D | LED display: *●●○ LED display: Operation, timer and pre-heat display flashing at 5Hz | Compressor |
| 1E | Outdoor LED display: *○*●○*●○ | High Discharge Temperature |
| 1F | Outdoor LED display: *●○*●●○ | Compressor breakdown |
| 20 | Outdoor LED display: *○*○ | PMV leakage error (unit B) |
Guides
- Air conditioner repair, stage by stage: from the call to the hand-over
The eight stages of an air conditioner repair: symptoms, safety, reading the code, narrowing down, measuring, repairing, test run, hand-over.