Speed Queen washers are known for their rugged, commercial-grade build and advanced electronic controls. These machines are designed to withstand heavy use while offering exceptional performance. However, even durable washers rely on sensitive electronics—and when something goes wrong, diagnostic error codes appear to protect the system.
One of the most serious alerts is the Speed Queen Er bS error code, which signals a board shorted error involving the washer’s output control board. Because this code relates to electrical failure, it requires careful handling to avoid safety risks or further damage.
What does the Speed Queen Er, bS error code mean?
The Speed Queen board shorted error appears when the washer detects a short circuit within the output control board. This board manages key operations, including the motor, water inlet valves, drain pump, spin cycle, and other high-demand components. When electrical flow becomes unstable, the washer shuts down to prevent internal damage.
Common causes of the Er, bS error
- Moisture entering the control panel or wiring
- Burned or damaged relays on the output board
- Failed electrical circuits due to age or wear
- Sudden power surge or voltage spike
- Loose, damaged, or corroded wiring harness
- Internal corrosion
- Short circuit caused by leaking water or condensation
Because the failure occurs inside the electronics, this error is not caused by user actions. The washer disables key functions to protect itself from a total board failure.
Symptoms of an output board failure
Before the Speed Queen error codes guide displays Er, bS, users often notice warning signs such as:
- Washer won’t start or respond to commands
- Control panel lights flicker or behave erratically
- Drum will not fill, spin, or drain
- Wash cycles stop suddenly
- Intermittent PF (Power Fail) messages
- Clicking, popping, or buzzing noises from the control area
- Burning smell near the control panel
- Full system shutdown
These symptoms help differentiate a board failure from simple hose, pump, or mechanical issues.
Can you fix the Er, bS error yourself?
In most cases: No.
The Speed Queen washer control board issue is an electrical hardware failure that typically requires professional repair. Unlike clogs or hose kinks, board shorts involve delicate electronics and high-voltage components.
Why DIY repairs are risky
- Electrical shock hazard
- Risk of causing further shorts or damaging replacement boards
- Potential to melt wiring or damage connectors
- Incorrect handling may void your warranty
- Internal components require specialized diagnostic tools
Homeowners should only perform basic, non-invasive checks before calling a technician.
Safe troubleshooting steps to try
These steps are safe for the average user and may clear temporary electrical faults.
Step 1: Power cycle the washer
- Unplug the washer for 1–2 minutes.
- Plug it back in and attempt to restart.
Temporary power fluctuations can sometimes trigger the error.
Step 2: Inspect the power outlet
- Plug another appliance (like a lamp or phone charger) into the same outlet.
- Confirm the outlet is delivering stable power.
- Avoid using extension cords or surge strips—the washer requires a dedicated grounded outlet.
Step 3: Check for moisture
Look around and behind the machine for:
- Water drips
- Dampness
- Leaking hoses
- Condensation
Moisture can temporarily short the board.
If moisture is present, do not continue running the washer.
Step 4: Restart a short cycle
After clearing the code:
- Restart a normal or rinse cycle
- Observe the control panel
If the Speed Queen washer not starting issue continues or the error reappears, the board is likely damaged.
⚠️ Critical safety warning:
Do NOT open the control panel or attempt circuit board repair.
The internal components store electrical charge and must only be serviced by certified professionals.
When to call a professional technician
Because the washer output board failure is an electrical problem, a certified technician is almost always required.
Call for service immediately if:
- The Er, bS error returns after a reset
- The washer won’t power on or respond
- The control panel flickers or clicks
- You smell burning or see scorch marks
- The drum does not fill, drain, or spin
- You hear popping sounds near the board
- Other errors appear alongside the board short
A Speed Queen repair near me specialist will:
- Test voltage supply and electrical continuity
- Inspect wiring harnesses and connectors
- Diagnose failed relays or burned circuits
- Replace the output control board if needed
- Recalibrate the washer after repair to restore normal operation
Professional repairs ensure safety, maintain warranty coverage, and prevent future electrical damage.
Preventing future board errors
While some control board failures happen over time, you can reduce the risk with good maintenance practices:
- Use a dedicated grounded wall outlet
- Install a high-quality surge protector to prevent voltage spikes
- Keep the laundry area dry and well-ventilated
- Repair leaks immediately
- Avoid overloading electrical circuits
- Schedule yearly maintenance checks, especially for commercial use
These habits protect the washer’s sensitive electronic components.
Conclusion
The Speed Queen Er bS error code signals a shorted output board—a critical electrical issue that prevents the washer from operating safely. While basic resets may help temporarily, most cases require professional diagnosis and board replacement. Acting quickly protects your washer from further electrical damage and keeps it running efficiently.
If your machine displays the Er, bS error, contact a certified Speed Queen repair technician for safe, expert service.
