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Error code reference

KitchenAid Dishwasher Error Code Anti-Bacterial/Heavy

Dispenser current sense error

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What the Anti-Bacterial/Heavy error code actually means

Your KitchenAid dishwasher has detected a problem with the soap or dispenser compartment, specifically that the electrical signal to the dispenser is not behaving correctly. This usually means the part that opens the detergent door during the wash cycle has an electrical issue or the wiring connected to it is damaged. Until this is repaired, the dishwasher may not release detergent properly or may stop mid-cycle.

Diagnostic procedure

The full Anti-Bacterial/Heavy procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Anti-Bacterial/Heavy

Ranked by how often they cause this code
  1. 1Faulty dispenser solenoid
  2. 2Damaged or corroded wiring harness
  3. 3Dispenser door latch or spring failure
  4. 4Detergent buildup blocking the dispenser
  5. 5Failed main control board

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Questions people ask about Anti-Bacterial/Heavy

What does Anti-Bacterial/Heavy mean on a KitchenAid dishwasher?
This code indicates a dispenser current sense error, meaning the control board detected an abnormal electrical current in the dispenser circuit during a cycle. The dispenser is the assembly that releases detergent and rinse aid at scheduled points in the wash program. The fault can originate from the dispenser solenoid, the wiring harness, or the control board itself. The dishwasher may stop operating or fail to dispense detergent until the issue is resolved.
Is it safe to run my KitchenAid dishwasher with this error code active?
Running the dishwasher with this error present is not recommended. The dispenser may not open correctly, meaning your dishes will not be properly cleaned with detergent. In some cases the dishwasher may halt mid-cycle. It is best to address the fault before continuing regular use.
Will resetting my KitchenAid dishwasher clear the Anti-Bacterial/Heavy error code?
A reset may temporarily clear the error code, but if the underlying hardware problem is still present, the code will return once the dispenser circuit is activated again during a wash cycle. Resetting is useful for confirming whether the fault is intermittent, but it does not repair a failed solenoid, damaged wiring, or faulty control board. A proper diagnostic inspection is needed to permanently resolve the error.
Can I fix the Anti-Bacterial/Heavy error on my KitchenAid dishwasher myself?
Some causes of this error are DIY-friendly, such as cleaning detergent buildup from the dispenser compartment or inspecting visible wiring for obvious damage. However, testing the solenoid coil for proper resistance or replacing the control board requires basic electrical knowledge and a multimeter. If you are not comfortable working with appliance wiring, a qualified technician should handle the diagnosis and repair.
How much does it cost to repair the Anti-Bacterial/Heavy dispenser error on a KitchenAid dishwasher?
Repair costs vary depending on which component has failed. Replacing a dispenser assembly typically runs between $80 and $200 including parts and labor. A wiring harness repair or connector replacement may cost less, while a main control board replacement can range from $200 to $400 or more depending on the model and labor rates in your area.

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