top of page

PL: Voltage on DC Bus Bar Too Low (P&N Protection)



Step 1: Check for High Voltage

  • Measure the voltage to ensure it is within the specified range. Refer to the data plate for rated voltage.


Step 2: Check the Outdoor Board

  • Inspect the outdoor control board for signs of damage or malfunction.

  • Verify that the wiring connections on the outdoor board are secure.

bottom of page