Samsung Dishwasher Error Code PE — What It Means & How to Fix It

What Does This Error Mean?

Samsung dishwasher error PE means there is a problem with the half-load function. The half-load feature lets you wash fewer dishes using less water and energy. This is a minor error — it usually clears with a reset and does not indicate a serious hardware problem.

Affected Models

Samsung DW80R9950US
Samsung DW80R7060US
Samsung DW80R5061US
Samsung DW80K5050US
Samsung DW80H9970US

Common Causes

A temporary firmware glitch caused the half-load function to malfunction
The half-load button was pressed in an incorrect sequence during cycle selection
The control panel button for the half-load function is stuck or not registering correctly
A power fluctuation occurred while setting up a half-load cycle, causing an error state
The control board has a minor fault affecting the half-load zone selection

How to Fix It

Press the Cancel or Start/Reset button to cancel the current program. Wait for the dishwasher display to go dark.

Hold the button for 3 seconds if a single press does not cancel the cycle.
Open the door and check that the racks are not blocking the spray arms. Close the door and wait 30 seconds.

A half-load cycle uses only the upper or lower rack. Make sure the rack you are using has enough clearance for the spray arm to spin.
Unplug the dishwasher from the wall outlet or turn off its circuit breaker. Wait at least 5 minutes.

A full power reset clears any temporary error states in the control board's memory.
Restore power. Do not press the half-load button yet. Start a standard full wash cycle first to confirm the machine is working normally.

Running a successful full cycle first confirms the error was temporary and not a recurring hardware issue.
Once the full cycle completes successfully, try using the half-load function again. If PE returns, avoid using the half-load feature and contact Samsung support.

You can still use all other wash programs normally. The half-load function is a convenience feature — losing it does not prevent normal washing.

When to Call a Professional

Error PE is rarely a serious hardware problem. A power reset resolves it in most cases. If PE appears every single time you use the half-load function, the control board or panel button may need professional inspection, costing $80 to $150.

Frequently Asked Questions

What does the half-load function on a Samsung dishwasher actually do?

The half-load function lets you wash a partial load using only the upper or lower rack. The dishwasher adjusts water usage and spray arm activity to only cover the rack you are using. This saves water and energy when you do not have a full load of dishes.

Can I still use my dishwasher normally while PE is showing?

In most cases, yes. Error PE specifically affects the half-load function. Other wash programs such as Normal, Heavy, or Quick should still work. If the dishwasher refuses all programs while PE is active, try a full power reset first.

How do I properly use the half-load function to avoid error PE?

Load dishes into either the upper or lower rack only. Select the half-load zone (upper or lower) using the dedicated button on the control panel. Then select your desired wash program and press Start. Make sure you press the buttons in the correct order — check your model's manual for the exact sequence.