Reversing a Broken Start Switch on GE GTW725BSN

Introduction

When a GE GTW725BSN washing machine fails to start, one of the most common culprits is a faulty start switch. The start switch is the part that signals the motor to begin its spin cycle. If it is broken, the machine may remain idle even when the user pushes the start button. Reversing a broken start switch—essentially bypassing or repairing it—can restore operation without the need for a costly replacement.

Below is a detailed, step‑by‑step guide for safely reversing a broken start switch on the GE GTW725BSN. This guide is written for home appliance owners with a basic understanding of electrical safety and minor mechanical disassembly. If you feel uncomfortable at any point, please seek professional assistance.

Safety First

Before starting any repair work, always follow these precautions:

• Unplug the unit from the wall outlet. Verify that the machine is completely powered down by checking that the control panel lights are off and the motor no longer hums.
• Discharge the capacitors. The motor controller contains high‑voltage capacitors that can retain charge even after unplugging. Let the machine sit for at least 30 minutes after unplugging to allow residual charge to dissipate.
• Wear insulated gloves and safety glasses. While the machine is unplugged, the risk of electric shock is minimal, but safety goggles protect against accidental splashes of detergent or water.
• Work on a dry surface and keep the work area free of conductive debris.
• Keep a fire extinguisher rated for electrical fires handy, just in case.

Tools and Materials Needed

All tools are commonly found in a basic home repair kit. If any are missing, purchase them from a hardware store or online retailer.

Understanding the GE GTW725BSN Start Switch

The start switch on this model is a mechanical push button that, when pressed, closes a circuit between the control board and the motor. It is located on the control panel near the front door of the machine, just below the display. Inside, it has a set of contacts that are pressed by a spring‑loaded plunger. A broken switch might have:

• A broken spring, causing the button to stick or not return to its resting position.
• Corroded or burned contacts, preventing electrical connection.
• Mechanical failure of the internal housing, making the button feel loose or unresponsive.

In each case, the end result is the same: the motor controller never receives the “start” signal, and the machine will not spin.

Step 1 – Accessing the Control Panel

1. Locate the front access panel. On the GE GTW725BSN, the control panel is sealed by a plastic cover that attaches with screws on the top and sides.
2. Remove the screws. Use the Phillips screwdriver to unscrew all fasteners. Keep the screws in a small container to avoid losing them.
3. Lift off the cover. The panel may have a slight lip or detent; gently pry it upward until it clears the front frame.
4. Set the panel aside in a clean, dry place. The interior is now exposed, revealing the control board and the start button.

Step 2 – Inspecting the Start Switch

1. Locate the start button. It is usually a large, rectangular button on the front face of the control board, marked “START/STOP” or similar.
2. Press the button repeatedly. Observe whether it feels normal. A broken switch may feel stiff, click, or not return to its original position.
3. Examine the button’s contacts. If you can see the metal contacts inside the button, look for corrosion, burn marks, or dislodged parts.
4. Use the flashlight to check for any loose wires or damaged connectors attached to the switch.

If you determine the switch is indeed broken, proceed to the next steps to bypass or replace it.

Step 3 – Disconnecting the Switch

1. Identify the wiring that connects to the start button. Typically, there will be two wires: one black (live) and one white or green (neutral).
2. Mark the wires with a piece of masking tape and a pen. This helps you remember which wire goes where when you reconnect.
3. Use the flat‑head screwdriver to loosen the terminal screws on the board. Gently pull the wires away from the contacts. If the wires are soldered, you may need a soldering iron or a small heat‑shrink tool to separate them carefully.
4. Store the wires safely. Avoid bending or damaging the insulation.

Step 4 – Preparing the Bypass

There are two common methods for bypassing a broken start switch:

1. Mechanical bypass – Using a simple jumper wire to connect the start switch terminals directly.
2. Electronic bypass – Using a small relay or a replacement button wired into the circuit.

Below are detailed instructions for both.

Mechanical Bypass

1. Cut a length of insulated copper wire about 2–3 inches long. Ensure it is thick enough to handle the current; 22 AWG is typically sufficient.
2. Strip the ends of the wire using wire strippers. Remove about 1/4 inch of insulation from each end.
3. Connect one end to the first terminal of the start switch. Twist the wire around the terminal and secure it with a small screw or use electrical tape to keep it in place.
4. Connect the other end to the second terminal. Repeat the twist‑and‑secure method.
5. Wrap the junctions with heat‑shrink tubing or double‑wrap with electrical tape to insulate and protect the connection.
6. Verify that the wire is firmly seated and that no loose strands are exposed.

Electronic Bypass (Optional)

If you prefer a cleaner look or a more permanent solution, you can use a 12V relay or a new start button:

1. Purchase a small relay that operates on 12V DC, such as a 12V automotive relay. Ensure the coil voltage matches the control board’s logic level (check the manual).
2. Wire the relay coil between the control board’s start circuit. Use the same method as the mechanical bypass, but connect the coil terminals to the appropriate pins.
3. Hook up the relay contacts to the motor circuit that the start switch originally drove. This may require soldering or crimping connectors, depending on the layout.
4. Test the relay by pressing the new button; the relay should engage and allow the motor to start.

The electronic bypass offers a more robust and aesthetically pleasing fix, especially if you plan to keep the machine for a long time.

Step 5 – Reassembling the Control Panel

1. Reconnect the wires (or the bypass jumper) to the control board’s terminals. Double‑check the polarity and orientation using the tape markers.
2. Secure the wiring so it does not interfere with any moving parts. Use zip ties or the original cable management channels.
3. Replace the control panel cover. Align it with the front frame and slide it into place.
4. Screw the cover back on. Tighten all screws evenly to avoid warping the panel.
5. Inspect the assembly for any loose components. Make sure the start button (or bypass) feels firm and returns to its resting position.

Step 6 – Testing the Machine

1. Plug the washer back in. Ensure the outlet is grounded and the circuit breaker is on.
2. Turn on the machine using the front display. The control panel lights should come on.
3. Select a wash cycle. The start button should now trigger the motor to spin.
4. Observe the motor and drum. The machine should begin its spin cycle and complete the selected cycle.
5. Check for abnormal noises. A broken start switch can sometimes cause the motor to run at incorrect speed or with unusual vibrations. If you hear anything unusual, shut the machine down immediately and re‑inspect the wiring.

If the machine operates correctly, congratulations! You have successfully reversed a broken start switch.

Troubleshooting

Always refer to the GE GTW725BSN owner’s manual for specific error codes and recommended procedures.

When to Replace the Switch

While a bypass is an effective temporary solution, it may not be suitable for long‑term use. If:

• The machine will remain in use for more than a few months.
• You want to keep the washer in pristine condition.
• You need a permanent fix that does not rely on a custom wire.

Then it’s best to purchase a replacement start switch from a reputable appliance parts supplier and install it following the same steps, but replacing the broken component instead of bypassing it.

Final Checklist

• [ ] Machine unplugged and capacitors discharged
• [ ] Control panel safely removed
• [ ] Start switch inspected and identified as broken
• [ ] Bypass wired (mechanical or electronic)
• [ ] Control panel reassembled
• [ ] Machine tested and operating
• [ ] All tools and materials stored safely

By following this guide, you’ll have restored the functionality of your GE GTW725BSN washing machine with minimal expense and effort. Happy washing!