Press the ON/OFF button. The display will illuminate, and the unit will begin operating based on the previous settings.
After approximately 2,500 hours of operation, the display will show “Filter Sign” or a small icon. This is a maintenance reminder—not an error. daikin ac remote brc4m150w manual
To reset the filter sign (as per the manual): Press the ON/OFF button
The BRC4M150W is diagnostic-friendly. If your system has a problem, the remote will flash a code. The BRC4M150W is diagnostic-friendly
| Error Code | Meaning | Quick Fix | | :--- | :--- | :--- | | U0 | Refrigerant shortage | Call a technician; check for leaks. | | U4 | Communication error | Power cycle the AC (flip the breaker). | | A1 | Indoor PCB failure | Service required. | | E5 | Fan motor lock | Turn off unit for 30 min; restart. | | F3 | Discharge pipe temp issue | Clean outdoor coil; check gas pressure. | | Blank screen but AC is on | Remote display failure | Check wiring between remote and indoor unit. | | Key symbol visible | Child lock active | Press and hold MENU + CANCEL for 5 seconds. |