mypros+
Error code reference

LG Washer Error Code dn

Pedestal washer is being operated without a full-size washer or stacking switch is not working properly.

Avg. service call
$285
National average. Trip fee plus diagnostic plus labor. Before parts.
MyPros+ 3-day pass
$9.95
Same diagnostic steps, on your phone. Start now.
You keep in your pocket
~$275
Even before you buy the part.
Skip the service call. Fix it yourself.
Full procedure unlocks instantly.
Get Started

What the dn error code actually means

Your LG pedestal washer is showing this error because it either does not detect a compatible full-size LG washing machine on top of it, or the connection switch between the two units is not working. The pedestal washer cannot run on its own and requires a compatible LG washer stacked above it to operate. Make sure the two units are properly connected and that the top washer is a 2009 or newer LG model.

Diagnostic procedure

The full dn 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.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
The pedestal washer will not operate as a standalone unit. It must be stacked under a full-size LG appliance. Stacking switch will not operate properly if stacked under a non-LG appliance or an LG appliance manufactured before 2009.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock dn procedure $9.95

Or subscribe: $29/month for unlimited access to all codes plus Max AI diagnostics.

Most common causes of dn

Ranked by how often they cause this code
  1. 1Pedestal washer operating without a full-size washer
  2. 2Stacking switch not engaged or misaligned
  3. 3Incompatible full-size appliance stacked on top
  4. 4Faulty or damaged stacking switch

Most DIYers save hundreds by diagnosing before ordering parts.

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass

Questions people ask about dn

What does dn mean on a LG washer?
The dn code on an LG pedestal washer means the unit is either not stacked under a compatible full-size LG washer, or the stacking switch connecting the two appliances is not working properly. The pedestal washer cannot operate as a standalone unit. It requires a full-size LG washer manufactured in 2009 or later to be stacked on top of it for the switch to function correctly.
Will resetting my LG washer clear the dn error code?
A simple reset will not permanently clear the dn code if the underlying issue has not been resolved. The code will return as long as the pedestal washer cannot detect a compatible full-size LG appliance through the stacking switch. The root cause, whether it is a pairing issue, misalignment, or a faulty switch, must be addressed first.
How much does it cost to repair the dn error on an LG pedestal washer?
If the issue is simply a pairing or alignment problem, there is no parts cost involved. If the stacking switch itself is defective and needs replacement, repair costs can vary depending on parts and labor rates in your area. Parts and professional service fees combined typically range from around $75 to $200 or more, depending on the technician and location.
How do I fix the dn error code on my LG pedestal washer?
Start by confirming that a compatible full-size LG washer (2009 or newer) is properly stacked on top of the pedestal unit. Make sure the two appliances are correctly aligned and fully seated so the stacking switch can engage. If the pairing and alignment are correct but the code persists, the stacking switch may need to be inspected and replaced.
Is it safe to use my LG pedestal washer when the dn code is showing?
The pedestal washer will not operate when the dn code is active, so there is no immediate safety risk from the unit running in an unintended state. However, you should not attempt to force or bypass the stacking switch requirement. The unit is designed to work only in a properly paired configuration with a compatible full-size LG washer.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass