973913041134013 Genuine Main Control Board PCB for Simpson, Westinghouse Top Load Washing Machines SWT8043 WWT8040 A03739901A

This is the genuine main control board, part 973913041134013, for Simpson and Westinghouse top load washing machines. It's on file for the Simpson SWT8043 and the Westinghouse WWT8040, and the same board is also known as A03739901A. Before you order, read the model and product numbers from the rating plate on your washer and compare them, because control boards are matched closely to each machine.

Signs the main PCB in your Simpson or Westinghouse top loader has failed

The main board is the brain of the washer. It reads the program and option buttons, switches the inlet valves, motor and drain pump, and times each stage of the wash. When it fails, the faults can look random: a dead display, buttons that do nothing, a cycle that stops partway, or a machine that fills but never agitates or spins. Burnt marks or a swollen component on the board are clear warning signs. Because a faulty pump, motor or wiring loom can cause similar symptoms, test those first so you don't replace a good board.

Part details

• Genuine Electrolux group part 973913041134013
• Also known as A03739901A
• Main control board (PCB) for top load washing machines
• Listed for Simpson SWT8043 and Westinghouse WWT8040

Swapping the control board

Turn the washer off and unplug it at the wall before opening the console. Photograph every plug and wire on the old board so each one goes back in the same spot, and handle the new board by its edges to avoid static damage. If you're not comfortable with electrical work, have a qualified appliance technician fit it. Afterwards, run a short program and check that it fills, washes, drains and spins.

Questions about this part

Is this an original Simpson part?

Yes. 973913041134013 is a genuine part from the Electrolux group, the company behind both Simpson and Westinghouse. It's the board listed for the SWT8043 and WWT8040 top loaders and it is also known as A03739901A.