1. Turn off the heat pump power at the breaker/disconnect switch for safety & equipment protection.<br /><br />2. Locate the circuit board in the heat pump control panel; open the panel to access it.<br /><br />3. Disconnect wires, label them, and remove the old circuit board using a screwdriver.<br /><br />4. Install new circuit board, reattach wires to terminals, and ensure secure connections.<br />5. Turn the power back on to the heat pump, test operation, and thermostat function.<br /><br />6. Close the control panel with screws or clips once the new board is working correctly.<br /><br />7. Clean up debris and dispose of old/damaged circuit boards properly.
