LG Refrigerator Error Code dH F – Troubleshooting Guide

LG models have an auto defrost feature that runs at least once a day like all modern refrigerators. However, if that cycle doesn’t go as planned, the fridge will show the dH F error code.

The dH F error code appears on LG refrigerators when the defrost cycle runs for longer than 80 minutes. However, the cycle shouldn’t take that long to complete. So, a problem here is likely caused by a faulty defrost temperature fuse, faulty defrost heater, or a drain jam.

The problem might seem challenging at first, but don’t worry. This guide has everything you need to understand the problem, its causes, and its solutions.

When you see the dH F error code on your LG refrigerator, that means the appliance is experiencing a defrosting error. In simple terms, the fridge’s regular defrost cycle is taking too long to complete, which means that there’s a problem somewhere in the defrost system.

More specifically, the dH F error code will appear on your fridge display when 80 minutes have passed, and the defrost cycle is still not complete. The code is also triggered when the defrost temperature is too low and does not go over 46.4°F(8°C) as it’s supposed to.

Defrosting is a crucial task for all refrigerators, including the LG model you have at home. That’s because all fridges experience a gradual buildup of ice and frost around their evaporator, which is where cool air is supplied into the fridge’s compartments.

A heater near the evaporator will melt away any ice and frost, preventing build ups from forming.

Once the defrost cycle is complete, the fridge will continue cooling its compartments as usual.

Read: LG Refrigerator Error Code FF: Troubleshooting Guide

The dH F error code is most likely triggered by a problem at the defrost temperature fuse, defrost heater, or at the fridge drain.

This section will help you understand each of these fridge parts, the purpose they serve, and how you can fix them when they stop working correctly.

Defrost Temperature Fuse Problem

What it is: A part of your fridge’s defrost system is the defrost temperature fuse. This thermal fuse is a safety device that prevents the system from overheating whenever the defrost cycle runs.

When the heating element is working at the correct temperature, nothing will happen to the temperature fuse. However, if that element overheats, the fuse will break the circuit and shut off the heater.

In doing so, the fuse prevents the heating element from overheating and damaging your fridge from the inside.

How it fails: The dH F error code can be triggered by two faults at the temperature fuse. Firstly, it’s likely that the fuse has become disconnected from the system.

Besides that, the fuse could have also blown as a protective measure to stop the heating element from overheating and damaging the fridge. 

How to fix it: Suppose the defrost temperature fuse is still in good shape but has come disconnected. In that case, all you have to do is reconnect the fuse firmly to prevent the connector from coming loose again.

However, you’ll have to replace a blown fuse with a new one. You’ll find the fuse located behind the rear panel of the fridge’s compartment attached to the defrost heating element.

LG models have an auto defrost feature that runs at least once a day like all modern refrigerators. However, if that cycle doesn’t go as planned, the fridge will show the dH F error code.

The dH F error code appears on LG refrigerators when the defrost cycle runs for longer than 80 minutes. However, the cycle shouldn’t take that long to complete. So, a problem here is likely caused by a faulty defrost temperature fuse, faulty defrost heater, or a drain jam.

The problem might seem challenging at first, but don’t worry. This guide has everything you need to understand the problem, its causes, and its solutions.

When you see the dH F error code on your LG refrigerator, that means the appliance is experiencing a defrosting error. In simple terms, the fridge’s regular defrost cycle is taking too long to complete, which means that there’s a problem somewhere in the defrost system.

More specifically, the dH F error code will appear on your fridge display when 80 minutes have passed, and the defrost cycle is still not complete. The code is also triggered when the defrost temperature is too low and does not go over 46.4°F(8°C) as it’s supposed to.

Defrosting is a crucial task for all refrigerators, including the LG model you have at home. That’s because all fridges experience a gradual buildup of ice and frost around their evaporator, which is where cool air is supplied into the fridge’s compartments.

A heater near the evaporator will melt away any ice and frost, preventing build ups from forming.

Once the defrost cycle is complete, the fridge will continue cooling its compartments as usual.

Read: LG Refrigerator Error Code FF: Troubleshooting Guide

The dH F error code is most likely triggered by a problem at the defrost temperature fuse, defrost heater, or at the fridge drain.

This section will help you understand each of these fridge parts, the purpose they serve, and how you can fix them when they stop working correctly.

Defrost Temperature Fuse Problem

What it is: A part of your fridge’s defrost system is the defrost temperature fuse. This thermal fuse is a safety device that prevents the system from overheating whenever the defrost cycle runs.

When the heating element is working at the correct temperature, nothing will happen to the temperature fuse. However, if that element overheats, the fuse will break the circuit and shut off the heater.

In doing so, the fuse prevents the heating element from overheating and damaging your fridge from the inside.

How it fails: The dH F error code can be triggered by two faults at the temperature fuse. Firstly, it’s likely that the fuse has become disconnected from the system.

Besides that, the fuse could have also blown as a protective measure to stop the heating element from overheating and damaging the fridge. 

How to fix it: Suppose the defrost temperature fuse is still in good shape but has come disconnected. In that case, all you have to do is reconnect the fuse firmly to prevent the connector from coming loose again.

However, you’ll have to replace a blown fuse with a new one. You’ll find the fuse located behind the rear panel of the fridge’s compartment attached to the defrost heating element.