Dexter Error Code D011 — Fill water conductivity error

Service Guy AI • Washer • Medium severity • Basic skill • ~45 min repair

Quick fix: Primary fix: Conductivity Probe (DEX-011P) - $40

What Does Dexter Error Code D011 Mean?

Fill water conductivity error. Fix rate: 86%

This is a medium-severity fault. The machine may complete the current cycle but is signalling a problem you should resolve before it escalates.

Possible Causes (4)

Dexter engineers identify the following root causes for fault code D011. Work through them in the order shown — they are listed from most common to least common.

  1. Low water pressure
  2. Clogged inlet screens
  3. Faulty inlet valve
  4. Pressure sensor malfunction

Step-by-Step Troubleshooting (7 steps)

Follow this sequence to diagnose and clear Dexter error code D011. Power down and unplug the machine before any internal inspection.

  1. 1. Disconnect power and verify zero voltage before servicing
  2. 2. Note the exact error code display and any flashing patterns
  3. 3. Verify water supply is on and adequate pressure
  4. 4. Clean inlet valve screens
  5. 5. Test inlet valve solenoids
  6. 6. Replace faulty component and test operation
  7. 7. Clear error code and run test cycle

Required Parts

Have these Dexter OEM part numbers ready before starting the repair. AAdvantage Laundry Systems carries verified parts for every code in this database.

  • Inlet valve assembly
  • Inlet screen filter
  • Pressure switch
  • Water flow sensor

Diagnostic Test Mode

Enter Dexter diagnostic test mode: Hold 'Medium + Start' for 5 seconds

Skill Level & Repair Time

This repair is appropriate for an experienced laundromat owner or in-house technician. You should be comfortable removing service panels, reading wiring diagrams, and using a multimeter to test continuity and voltage. Plan for approximately 45 minutes of active repair time once parts are on hand.

Get AI-Powered Diagnosis

If the steps above don't resolve Dexter D011, run a free Service Guy AI diagnosis. Upload a photo of the error display and get an AI-generated repair plan tied to your exact Dexter model number, including supplier links for required parts and on-call technician escalation.

Other Dexter Error Codes

F4 — Error Code F4COMM_ERROR_1 — Error Code COMM_ERROR_1F10 — Error Code F10F12 — Error Code F12F17 — Error Code F17F21 — Error Code F21F28 — Error Code F28F26 — Error Code F26
All Dexter Error CodesAll Error CodesService Guy AI DiagnosisOrder OEM PartsEquipment Hub

By — Founder, WashBizHub. Third-generation laundromat operator. Reviewed by the WashBizHub editorial team.

 · 

WashBizHub — Laundromat Industry Intelligence Platform. Contact · About · Privacy Policy · Terms of Service

© 2026 WashBizHub. WashBizHub is editorially independent. Where we earn affiliate revenue (e.g., AAdvantage funding referrals), it is clearly labeled.