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dET

Maytag dET: Detergent cartridge not detected

On models with the Optimal Dose detergent dispenser, the washer cannot sense a cartridge in the drawer. It is a dispenser detection message, not a mechanical failure.

DIY fix

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. No detergent cartridge installed
  2. Cartridge not seated correctly in the dispenser
  3. Dispenser drawer not fully closed
  4. Debris on the cartridge or dispenser contacts
Before you start — unplug the appliance and turn off the water supply. You'll be working near water and electrical parts, and drained water can be hot. If a step involves the pump, wiring, or opening the cabinet and you're unsure, stop and call a qualified technician.

Step-by-step fix

1Insert the cartridgePlace a compatible detergent cartridge fully into the dispenser slot.
2Reseat itRemove and reinsert the cartridge so it clicks into place and is detected.
3Close the drawerPush the dispenser drawer completely shut so the washer can read the cartridge.
4Clean the contactsWipe any detergent residue off the cartridge and dispenser so detection works.
5Ignore for single-doseIf you add detergent manually each load instead of using cartridges, this message can be disregarded.

Still showing dET?

If you’ve worked through every step and dET keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

Maytag washing machines. Front-load Maytag washers with the Optimal Dose detergent cartridge dispenser

FAQ

What does Maytag dET mean?

Detergent cartridge not detected. On models with the Optimal Dose detergent dispenser, the washer cannot sense a cartridge in the drawer. It is a dispenser detection message, not a mechanical failure.

What causes Maytag dET?

The most likely cause is no detergent cartridge installed. Other causes include Cartridge not seated correctly in the dispenser; Dispenser drawer not fully closed; Debris on the cartridge or dispenser contacts.

Can I fix Maytag dET myself?

Usually yes. Start by working through the steps above, beginning with: place a compatible detergent cartridge fully into the dispenser slot.