This Tech Tips video explains what 4 beep means and how to fix
The 4 beeps mean there is an issue with the connection between the motor and the circuit board. Specifically, the connector from the circuit board to the motor may have become dislodged or unplugged
To fix the 4 beeps, simply check the connection between the motor and the circuit board. If the connector is dislodged or unplugged, reattach it securely to resolve the issue.