LG Dryer Error Code nP — Error Code nP

Service Guy AI • Dryer • Medium severity • Intermediate skill • ~30 min repair

Quick fix: Ensure the dryer door is fully closed and latched.

What Does LG Dryer Error Code nP Mean?

LG Dryer dryer: Error Code nP

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)

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

  1. Faulty door interlock
  2. Malfunctioning control board
  3. Blocked drain pump
  4. Pressure switch failure

Step-by-Step Troubleshooting (6 steps)

Follow this sequence to diagnose and clear LG Dryer error code nP. Power down and unplug the machine before any internal inspection.

  1. Disconnect power before servicing.
  2. Inspect the door interlock for proper operation.
  3. Check the control board for any visible damage or burnt components.
  4. Examine the drain pump for blockages or clogs.
  5. Test the pressure switch for continuity.
  6. Reconnect power and test the dryer after each step.

Required Parts

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

  • Door interlock switch
  • Control board
  • Drain pump
  • Wiring harness
  • Thermal fuse

Diagnostic Test Mode

Enter LG Dryer diagnostic test mode: Press and hold the 'Dry Level' and 'Start/Pause' buttons simultaneously for 3 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 30 minutes of active repair time once parts are on hand.

Get AI-Powered Diagnosis

If the steps above don't resolve LG Dryer nP, 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 LG Dryer model number, including supplier links for required parts and on-call technician escalation.

Other LG Dryer Error Codes

tE3 — Error Code tE3tE — Error Code tEE8 — Error Code E8tE1 — Error Code tE1dE2 — Error Code dE2E5 — Error Code E5E7 — Error Code E7CL — Error Code CL
All LG Dryer Error CodesAll Error CodesService Guy AI DiagnosisOrder OEM PartsEquipment Hub

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

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