lg dryer code np Troubleshooting step guide

lg dryer code np Troubleshooting step guide

Seeing an NP error code pop up on your LG dryer can be frustrating. This cryptic code could signal any number of problems with your appliance, and fixing the issue often requires some trial and error. In this guide, we’ll walk through the common causes of the NP error on LG dryers and provide step-by-step instructions to help you diagnose and resolve the problem.

What is the NP code on LG dryers?

The NP error code indicates a problem with the neutral heating circuit in your LG dryer. Specifically, it means the control board is not detecting proper current flow on the neutral line between the neutral terminal on the dryer and the neutral connection on your home wiring.

Some common causes for the NP code to display include:

The NP error prevents the dryer from initiating any heating cycles as a safety precaution since problems in the neutral circuit can lead to electric shocks.

How to Fix NP Code on LG Dryer

If your LG dryer is flashing NP and refusing to start a cycle, try these troubleshooting steps to identify and correct the issue:

Inspect the Heating Element

The most common reason for the NP error code is a faulty heating element. To check this component:

  1. Unplug the dryer from the power source.

  2. Remove the back panel of the dryer.

  3. Visually inspect the heating element for signs of damage. Look for visible cracks or breaks in the coils.

  4. Use a multimeter to check for continuity through the heating element. You should get a complete circuit. If not, the element needs replacing.

Check Wiring Connections

Loose or damaged wires can interrupt the neutral circuit and cause NP errors.

Test the Control Board

The dryer’s control board coordinates power to the heating circuit. If it’s malfunctioning, it can trigger an NP code.

Verify Neutral Connections

For the heating circuit to function, the dryer has to have a sound neutral connection back to the electrical panel.

Following these troubleshooting steps should help you zero in on the cause of the NP error on your LG dryer. Make any necessary repairs or replacements of faulty parts and confirm the error code is cleared before resuming normal use of the appliance.

Additional Tips and Tricks for Fixing the NP Code

Beyond the primary troubleshooting steps, here are some additional tips for resolving an NP code on your LG dryer:

Thoroughly testing the different electrical components and connections of your LG dryer is key to resolving that pesky NP code. Take the time to isolate the issue, and make repairs and replacements as needed to get your appliance functioning properly.

Frequently Asked Questions About Fixing the NP Code on LG Dryers

Here are answers to some common questions about troubleshooting NP error codes on LG dryers:

Why does my LG dryer suddenly show NP code?

The NP error is most likely to appear suddenly if a component like the heating element, thermistor, or control board experienced an abrupt failure. Problems in the electrical supply circuit may also trigger it unexpectedly.

Does NP code mean replace control board?

Not necessarily. A faulty heating element is the most common cause of NP codes. But it’s a good idea to test the control board using diagnostic modes and visual inspection to check for issues. Only replace it if testing confirms the control board is no longer functional.

How can I reset NP code without service mode?

The easiest reset method is to unplug the dryer for 1 full minute before plugging it back in. This will clear error codes and reset the control board. You can also press the power button on some models while plugging back in to reset.

Why does my LG dryer flash NP code but still heat up?

This usually indicates intermittent problems with the neutral circuit. It may heat sometimes, then NP appears when a loose wire or faulty component causes a connection drop. Check all wiring and terminals for signs of damage, corrosion, or looseness.

How do I enter service mode on my LG dryer?

To access diagnostic service mode, press and hold the Temp and Time buttons simultaneously for 3-5 seconds while in standby. Use buttons to scroll through error code screens and run tests. Consult repair manuals for your specific model’s service menus.

Should I replace thermistor with NP code?

Only if testing proves the original thermistor is faulty. Use a multimeter to check it for out-of-range resistance values. Thermistors are relatively inexpensive, so replacing it is an easy fix if it’s causing NP code to appear.

Persistence and methodical testing are key to resolving NP issues on LG dryers. Once you’ve identified and replaced the problem component, the NP code should disappear and heating cycles will work normally again. Don't hesitate to contact a repair technician if needed.


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