Whirlpool Dishwasher Error Code E1 (F9 E1): How to Fix It

The Logic Verdict

My Take: The video author notes: “E1 F9 error code means that the dishwasher is taking more time than normal… to drain the water.” Based on this, I recommend inspecting the Drain Hose and Filter first.

What It Means

The E1 code (often displayed as F9 E1) stands for Long Drain. The dishwasher has failed to pump the water out within the expected time limit (usually 8 minutes).

Common Causes

1. Blocked Drain Hose: The hose is kinked, clogged with food debris, or obstructed at the garbage disposal connection.
2. Clogged Filter: The sump filter is packed with food particles, restricting water flow to the pump.
3. Excessive Suds: Using the wrong detergent (non-HE) creates suds that prevent the pump from working.
4. Control Board Glitch: A temporary electronic error.

Step-by-Step Fix

1. Check the Drain Hose:
   • Inspect the hose under the sink for kinks or sharp bends. Straighten it if needed.
   • If connected to a new garbage disposal, ensure the “knockout plug” inside the disposal inlet has been removed.
2. Clean the Filter:
   • Remove the bottom rack.
   • Twist and remove the cylindrical filter at the bottom of the tub.
   • Wash it thoroughly under running water to remove all debris.
3. Check for Suds:
   • If you see foam in the bottom, you may be using the wrong detergent.
   • Add a cup of vegetable oil or a dedicated washing machine cleaner to break down the suds, then run a drain cycle.
4. Reset the Dishwasher:
   • Turn off the breaker or unplug the dishwasher for 1 minute to reset the control board.
5. Inspect Drain Pump (Advanced):
   • If the hose and filter are clear but it still won’t drain, the drain pump itself may be clogged or faulty.

Resources

• Whirlpool Dishwasher Drain Hose (Amazon)
• Dishwasher Cleaner Tablets (Amazon)