The following LED states refer to the LED indicators on the controller. For more information, see LED indicators in myy1637148822139.html#myy1637148822139__table_wkn_f4v_prb.
| LED label | LED color | Normal state | State | Description |
|---|---|---|---|---|
| PWR | Green | On steady | Off steady | No power |
|
On steady |
Power is supplied by primary voltage | |||
| ERR | Red | Off steady | Constant rapid blinking | An error state, such as a faulty FM-06 module |
| On steady | Firmware upgrade in process. Ensure that there is no power loss during this period. | |||
| Rapid blinking with a long pause | An error state in the app, such as web server restarting | |||
| Off steady | No errors | |||
| STS | Green | Blink 1 Hz |
Blink 1 Hz |
Normal operation |
| Off steady | Faulty controller | |||
| TXRX | Yellow | Blink 1 Hz to 5 Hz | Blink | Normal data communication |
|
Off steady |
No data transmission |