Hotpoint Dishwasher Error Code C1 — Stuck Drain / Drain Timeout
What this means
The C1 error (or 1 LED blink) on Hotpoint dishwashers indicates a drain problem. The control board has run the drain pump but the water level has not dropped sufficiently. Common causes include a clogged drain filter, a blocked drain hose, a failed drain pump, food debris blocking the drain path, or a clogged garbage disposal air gap.
Alternate codes: 1 blink
Step-by-step fix
4 stepsClean the drain filter and sump area
Open the dishwasher and remove the lower rack. Locate the drain filter at the bottom center or rear. Twist and lift it out. Clean all food debris, grease, and buildup from the filter and the sump area beneath it.
Clean the filter under running water with a soft brush. Avoid using sharp objects that could damage the fine mesh.
Check the drain hose and garbage disposal connection
Pull the dishwasher forward slightly and inspect the drain hose for kinks. If connected to a garbage disposal, ensure the disposal knockout plug has been removed and the disposal is clear of debris.
Run the garbage disposal before starting the dishwasher — a clogged disposal is one of the top causes of dishwasher drain errors.
Inspect the drain pump
With the filter removed, look down into the drain pump area. Check for glass shards, bones, or other hard debris blocking the pump impeller. Try spinning the impeller manually if accessible.
A drain pump that hums but does not move water likely has a jammed or cracked impeller.
Test or replace the drain pump
Disconnect power. Access the drain pump from below the dishwasher. Disconnect the wire connector and test the pump motor for continuity. If it reads open, replace the pump.
Hotpoint dishwasher pumps are often the same as GE models — verify by matching the part number on the pump housing.
When to call a professional
If the drain path is clear and the pump works but the error persists, the control board may have a failed relay and needs professional diagnosis.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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