# How to Fix LG Error nP (No Power to Heater)
The LG Error Code **nP** stands for **”No Power to Heater”**. This error is primarily encountered on LG Washer/Dryer Combos or models that utilize an internal heating element for specialized cycles (like drying or sanitization).
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## 1. Explanation: What does “nP” mean in plain English?
When your LG machine attempts a cycle that requires heat (most often a drying cycle), the main control board sends power to the heating element. The **nP** error is triggered when the control board registers that the electrical circuit is *open* and no power (current) is flowing to the heater, even though the command was given.
While the error states “No Power,” the most frequent reason the circuit fails is that the **Dryer Heating Element** itself has burnt out, or a protective component designed to prevent overheating (like a thermal fuse) has failed, thus opening the circuit.
**Likely Culprits (in order of probability):**
1. **Blown Thermal Fuse:** A safety device located near the heater.
2. **Failed Dryer Heating Element:** The coil itself has broken or corroded.
3. Faulty wiring harness or connection.
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## 2. Step-by-Step Fix: How to Diagnose the Issue
** SAFETY FIRST:** Always unplug the washing machine completely from the wall power outlet before attempting any disassembly or touching internal components.
### Tools Needed:
* Screwdriver (Phillips and/or flathead)
* Multimeter (set to continuity or Ohms Ω)
### Step 1: Access the Heating Assembly
The heating element and associated thermal components are typically located on the **rear** of the unit, usually behind a large removable access panel.
1. Move the machine away from the wall.
2. Use a screwdriver to remove the screws holding the large rear panel in place.
3. Once the panel is off, identify the heating assembly. It usually consists of the element itself (a metal coil structure), and two or more small, cylindrical thermal fuses/thermistors mounted nearby.
### Step 2: Test the Thermal Fuse (Most Common Fix)
Thermal fuses are designed to blow if the temperature exceeds a safe limit, protecting the element and the machine. Once a thermal fuse blows, it must be replaced.
1. Locate the thermal fuse(s) connected to the heating element assembly.
2. Disconnect the two wires leading to the thermal fuse.
3. Set your multimeter to the **continuity setting** (it should beep if the connection is good) or the lowest **Ohms (Ω) setting**.
4. Place one meter probe on each terminal of the fuse.
5. **Diagnosis:**
* **Good Fuse:** The multimeter should beep (continuity) or display a reading very close to 0.00 Ohms.
* **Bad Fuse:** The multimeter will show “OL” (Open Line), “1”, or no reading/no beep.
If the thermal fuse tests bad, replacing it will almost certainly resolve the nP error.
### Step 3: Test the Heating Element
If the thermal fuse is good, the next step is to test the element itself.
1. Locate the two terminals connecting the wires to the Dryer Heating Element.
2. Disconnect the wires.
3. Set your multimeter to the **Ohms (Ω) setting**.
4. Place one meter probe on each terminal of the heating element.
5. **Diagnosis:**
* **Good Element:** You should see a stable resistance reading, typically between **8 to 20 Ohms**. (The exact reading depends on the model’s wattage.)
* **Bad Element:** The multimeter will show “OL” (Open Line), indicating that the coil has broken and the circuit is open.
If the element shows “OL,” it is the source of the nP error and must be replaced.
### Step 4: Reassembly
1. If you diagnosed a faulty thermal fuse or heating element, install the new part(s).
2. Reconnect all wiring securely.
3. Replace the rear panel and screw it into place.
4. Plug the machine back in and run a short drying cycle to confirm the fix.
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## 3. Call to Action
If your diagnosis confirms that the heating element is the faulty component, you will need a direct replacement designed for your LG model.
**Check the price for a replacement Dryer Heating Element here: https://www.amazon.com/s?k=LG+Dryer+Heating+Element&tag=trivian-20**
Need a Replacement Part?
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