Hotpoint Dishwasher Error Code AL01

AL01 indicates that the pan float sensor in the base tray of the dishwasher has been triggered, signaling an overflow condition. The PCB interprets the closed float sensor circuit as water having accumulated in the base pan, typically due to an internal leak. The dishwasher stops operation to prevent water damage to your home.

No, you should not continue running the dishwasher until the cause of AL01 has been identified and resolved. Running the machine with an active leak risks water damage to cabinetry and flooring, and could create a slip hazard. The dishwasher is designed to halt operation when this error occurs for exactly this reason.

Repair costs vary depending on the root cause. Replacing a hose seal or tightening a locknut is a low-cost fix, often in the range of a few dollars in parts if you do it yourself. A new float sensor typically costs between $10 and $40 in parts. More extensive repairs such as a replacement wash tank or a new PCB can range from $80 to $250 or more in parts alone, plus labor if a technician is involved.

Start by pulling the dishwasher forward and checking the base tray for standing water. If water is present, identify and repair the source of the leak, which could be a loose hose joint, a failed locknut seal, or a cracked tank. Once the leak is fixed and the base tray is dried out, the error should clear. If the tray is dry and the error persists, the float sensor may be faulty and need replacement.

A reset may temporarily clear the AL01 display, but the error will return as soon as the float sensor is triggered again if the underlying cause has not been fixed. You need to address the source of the leak or replace a faulty float sensor before the error will stay cleared. Always dry out the base tray completely before attempting to reset and restart the machine.