: When power is first applied, the screen will display "Connection under check. Please wait for a moment".
: Ensure the main power is on and the wiring is correctly connected to the indoor unit's PCB. daikin brc1c51 61 installation manual
: If two remote controllers are used for one unit, one must be designated as the "Sub RC." Hold the Mode button for 4 seconds or longer until the display changes from "Main RC" to "Sub RC". Troubleshooting Common Issues : When power is first applied, the screen
: The maximum allowable wiring length is 500 meters (1,640 feet) . : When power is first applied
