No approx. 5 VDC between 5V and GND — Indoor electronic control P.C. board issue

What does Approx. 5 VDC not present between 5 V (+) and GND (-) mean?

The required 5 VDC power supply is not present between the 5V (+) and GND (-) terminals on the indoor electronic control P.C. board. This indicates a power delivery problem on the board.

• Faulty indoor electronic control P.C. board
• Power regulation issue on the board

Click steps to track your progress.

1. 1

   Turn off the power supply.

2. 2

   Check the connection CN10A on the indoor electronic control P.C. board and associated wires.

3. 3

   Replace the indoor electronic control P.C. board.

4. 4

   Verify power output after replacement.