Whenever the error code d90 pops up on an LG dryer, it’s understandable to think that your dryer vents are extremely clogged. After all, the error code implies 90% clogging. But what if it’s an LG dryer d90 no blockage?
While 90% of the reasons why the error code d90 pops up on an LG dryer are ductwork blockage, sometimes the error code displays due to a tripped-up breaker, blown thermal fuse, small load size, filthy lint filter, burnt-out heating element, or active ‘Energy Saver’ mode.
So, it’s not always about a clogged, bent, or kinked dryer vent wall duct or hose. Though this post shall focus on LG dryer code d90 with no blockage, I’ll explain the error code, what causes it, and how to clear it, among other vital information.
We’ll also see how you can reset your LG dryer after d80 pops up. So, let’s get started!
In a hurry? Consider the fixes below to the reasons behind an LG dryer code d90 without blockage.
LG Dryer D90 No Blockage Causes and Fixes
| – | Probable Cause | Quick Fix |
| 1. | Tripped Breaker | Replace the circuit breaker if it’s tripped-up |
| 2. | Blown Thermal Fuse | Change the fuse if it won’t show continuity |
| 3. | Small Load | Improve the overall load to about ¾ full |
| 4. | Filthy Lint Filter | Remove the lint filter and clean it if it’s dirty |
| 5. | Burnt Out Heating Element | Test the heating element’s terminal for continuity and replace the heating element if they don’t show continuity |
| 6. | Active ‘Energy Saver’ Dryer Mode | Deactivate the ‘Energy Saver’ mode |
What Is the Error Code d90 On LG Dryer?
The LG dryer employs FlowSense technology to detect blockage, especially lint blockage, which could potentially trigger a fire outbreak.
Once the clogging reaches 80%, the LG dryer displays the error code d80 and so on to indicate the rate of clogging. The error code d90 mostly pops up when the dryer is 90% blocked.
Note, however, that I’ve used most, which means, as the post title suggests, ductwork clogging is not the only reason why an LG dryer will show error code d90.
Let’s talk about those issues next.
LG dryer d90 No Blockage – What Causes It and How Do You Fix It
I remember mentioning FlowSense, the technology that enables LG dryers to detect lint clogs and other potential fire triggers.
Now, flow sense sensors work by measuring heat in the dryer and not the amount of airflow. As long as a heat change could start a fire, the flow sensor will send a warning message.
If the warning is d90, the dryer will likely be 90% clogged. But again, other issues can cause temperature changes, and they are unrelated to blockage. They include the following:
1. Tripped Breaker
A power surge is likely to trip off the circuit breaker. That typically happens to protect the dryer from a possible fire. And when it comes to LG dryers, their FlowSense sensors can sense that and display the error code d80, d90, or any other.
Fix
Examine the circuit breaker and replace it if it is tripped up.
2. Blown-up Thermal Fuse
Sometimes the dryer’s thermal fuse blows up to protect the dryer, just like the circuit breaker. Once this happens, the dryer’s FlowSense sensors indicate the error code d90 or any other.
Fix
Run a multimeter test on the thermal fuse to see if it’ll show continuity. If it doesn’t, consider it might be faulty and need a replacement.
3. Small Load
LG dryer sensors find it difficult to detect smaller clothes loads. The dryer does not detect any moisture but instead sees the clothes as potential fire triggers, sending the error code d95 or any other.
Fix
Put more laundry into the dryer tub if it’s only tiny. While at it, ensure you don’t overload it. If possible, keep it ¾ full or thereabout.
4. Filthy Lint Filter
While the lint filter may not clog by lint, the presence of lint on the filter causes the FlowSense sensors to detect lint buildup. The dryer’s sensors see the lint as a potential fire hazard, enabling the error code d90 or any other.
Fix
Take out the filthy lint filter from the dryer and clean it. Overall, cleaning the lint filter is essential each time you want to use the dryer.
5. Burnt Out Heating Element
The fact that the heating element is burnt suggests a possible power overload. If the current is excessive, the dryer’s FlowSense sensors will perceive that and send the error code d90.
Fix
Consider testing the heating element contact points with a multimeter. If the contact points show no continuity, then it’s highly likely that the heating element is burnt.
6. Active ‘Energy Saver’ Mode
Lastly, consider if you’ve activated ‘Energy Saver’ if running a normal or cotton cycle. Usually, the FlowSense sensors will send the d90 warning when the mode (energy saver) is on.
Fix
Deactivate ‘Energy Saver’ if the mode is on.
How Do I Fix the D90 On My LG Dryer?
When it comes to the error code d90 on an LG dryer, you’ve to look at possible causes of lint clogging first (since they represent 90% of the reasons), then the non-clogging issues discussed earlier.
So, here’s how to go about it:
Step 1 (check the dryer vent for blockage)
Remember, the error code d90 pops up in the first place due to blockage. So, start the fixing by looking for any signs of blockage and clearing them.
Begin with the dryer vent and check its rear end and outside for lint clogging. If it’s lint-clogged, clean it to unclog it.
Step 2 (inspect the dryer vent for kinking, crushing, or damages)
Once you clear lint and other clogs from the dryer vent, check the vent for kinking, crushing, and wear. If there are kinks, straighten the dryer vent to remove them and if the dryer is destroyed or damaged, consider replacing it.
Step 3 (examine the dryer vent for proper installation)
The third check for the dryer vent is its installation. Ensure the dryer vent is free from numerous bends and it’s not too long to delay the drying time.
So, again, you may need to replace the dryer vent if it doesn’t meet the criteria.
Step 4 (clean the lint filter if clogged)
In this step, examine the lint filter for lint clogging. If the filter is clogged, clean the lint filter. You, however, have first to remove it to clean it properly.
Step 5 (look for a power cutout)
Two things could cut out power from the dryer. First, you have to check for a tripped breaker and reset it. Second, you’ve to check for a blown-up fuse and replace it.
Step 6 (deactivate energy saver mode)
If the ‘Energy Saver’ mode is on, deactivate it.
Step 7 (check load size)
Inspect the load size to ensure it’s at least a half drum full. Don’t overload the drum, as the clothes won’t spin properly.
Step 8 (observe the heating element for fault)
Lastly, test the heating element contact points with a multimeter and replace the heating element if they don’t show continuity.
Why Is Learning to Troubleshoot The LG Dryer Flow Sense D90 Error Important?
According to reports, about 80% of home fires start from the dryer, even though they are preventable. Due to surplus lint in the dryer vent, the lint is likely to trigger a fire unless you act.
You can only act if you know how to read the sign, and that’s where the FlowSense error codes come in.
If the rate of lint blockage is 90%, the error code d90 pops up, and when it does, you should disconnect the dryer and fix the source of the jam. You can avoid a fire outbreak and protect your dryer from damage.
The other attainment is that you can avoid lengthy drying times, which is likely to be the case when there is a blockage.
What If The LG Dryer d90 Code Does Not Clear?
If you’ve tried the 8-step guide, but the error code d90 does not clear. Consider resetting the dryer. Here’s how to do an LG dryer d90 reset:
Option 1 – 5-Minute Disconnect
- Consider unplugging your LG dryer from the wall outlet
- Wait 5 minutes before plugging the dryer back
- If there are any blockages, clear them and clean the lint filter before plugging the dryer back
Option 2 – Time-Dry + Signal Reset
This reset technique involves:
- Powering your dryer
- Pressing the Time-Dry + Signal buttons for 3 seconds
- Wait for the error to disappear
Alternatively, press Time-Dry +Wrinkle Care, Energy Saver + Less Time, or Energy Saver + Wrinkle care instead of Time-Dry + Signal
People Also Ask
1. Why Does My LG Dryer Keep Saying d90?
Your dryer keeps saying d90 to indicate that its vents are clogged 90%. So, you ought to power the dryer off and clear any source of the blockage. That includes removing lint from the vent and lint filter and unwinding kinked hoses.
2. How Do I Clear the Code On My LG d90?
You can clear the error code d90 on your LG by first clearing any source of the blockage. That includes cleaning lint from the ductwork and lint filter.
It also involves removing kinks from the hose. And if the error won’t clear, unplug the dryer for 5 minutes to reset it.
3. How Can I Tell If My Dryer Vent Is Clogged?
You can tell if your dryer vent is clogged if it displays the error code d80, d90, or any other. The dryer displays such error codes due to air blockage. So, find the source of the blockage and fix it.
4. How Do I Fix D90 On My LG Dryer?
You can fix the error code d90 on your LG dryer by first checking any source of blockage and clearing. That includes lint buildup, hose kinking, and wrong vent positioning.
What could be the cause if the gas valve assembly in my LG dryer is malfunctioning?
If the gas valve assembly in your LG dryer is malfunctioning, there could be several potential causes. One possibility is that there may be a fault in the electrical connection to the gas valve assembly, such as a loose or disconnected wire. Another potential cause could be a defect in the solenoid or coil within the gas valve assembly, which could prevent it from opening properly. Additionally, the gas valve itself may be clogged or damaged, hindering the flow of gas into the burner tube. It is also worth checking if there are any issues with the gas supply to the dryer, such as a closed or partially closed gas valve, or a depleted gas source. Lastly, a faulty control board or thermostat could be causing the malfunction in the gas valve assembly. To accurately diagnose the problem, it is recommended to consult a professional technician or refer to the manufacturer’s troubleshooting guide.
How can I determine if the heating element assembly in my LG dryer has burned out?
To determine if the heating element assembly in your LG dryer has burned out, you can follow these steps:
1. Ensure safety: Before starting any troubleshooting, always unplug the dryer from the power source to prevent any accidents or electric shocks.
2. Access the heating element assembly: Remove the dryer’s back panel or locate the access panel, typically found on the rear or bottom of the machine, depending on the specific LG dryer model.
3. Locate the heating element assembly: Once you have access, look for the heating element assembly. It is typically a coil-shaped part that is responsible for heating the air before it enters the dryer drum.
4. Test for continuity: To determine if the heating element assembly has burned out, you need to test it for continuity using a multimeter. Set the multimeter to the resistance or continuity testing mode.
5. Disconnect electrical connections: Before proceeding with the test, ensure that the dryer is unplugged. Then, carefully disconnect the electrical connections to the heating element assembly. These connections may be secured by screws or wire connectors.
6. Perform the continuity test: Touch the multimeter probes to the terminals of the heating element assembly. If the multimeter shows a reading of infinite resistance or if there is no continuity (symbolized by the multimeter not beeping or showing a numerical value), it indicates that the heating element assembly has burned out and needs to be replaced.
7. Check for visual signs of damage: While testing for continuity provides a definitive answer, you can also visually inspect the heating element assembly. Look for any signs of physical damage, such as visible breaks or discoloration on the coil, which can indicate a burned-out element.
8. Replace the heating element assembly: If the heating element assembly has indeed burned out, it will need to be replaced. Consult your dryer’s user manual or contact LG customer support for the specific replacement part number and instructions.
Remember, if you are unsure or uncomfortable performing these steps yourself, it is always recommended to seek professional assistance or schedule a service call with an authorized technician.
How can I determine if the gas valve solenoid in my LG dryer has failed?
To determine if the gas valve solenoid in your LG dryer has failed, you can follow these steps:
1. Gas dryers typically have two or more gas valve solenoid coils. These coils are responsible for opening the gas valve ports, allowing gas to flow into the burner assembly.
2. One of the primary indicators of a failed gas valve solenoid is a lack of heat in the dryer. If your dryer is not producing any heat, it could be due to a faulty gas valve solenoid.
3. To confirm if the gas valve solenoid is indeed the issue, check the igniter. Start the drying cycle and observe the igniter. If it glows brightly and then goes out without igniting the gas, it suggests that the gas valve solenoid is defective.
4. If this is the case, it is recommended to replace all the gas valve solenoid coils as a set. Even if only one of the coils is faulty, it is common practice to replace them all together to ensure optimal and consistent performance.
By following these steps, you can determine if the gas valve solenoid in your LG dryer has failed and take the appropriate steps to resolve the issue.
What parts do I need to replace if the drive motor’s centrifugal switch is faulty?
If the centrifugal switch of the dryer drive motor is faulty, you will need to replace the entire motor. Most dryer drive motors have a centrifugal switch that serves two primary functions. Firstly, it energizes a start winding when the motor is initially started, allowing it to run. Secondly, it closes a heat cycle contact, enabling the heat source to work properly. If the centrifugal switch malfunctions, it can result in one of two issues: either the motor won’t run at all or the motor will run but the dryer won’t produce any heat. As most centrifugal switches are not sold separately, replacing the entire motor becomes necessary in case of a defective switch. Therefore, the required part to replace in such a situation is the dryer drive motor.
Closing Remarks On LG Dryer D90 No Blockage:
Even though the error d90 often indicates 90% air blockage, especially in the ductwork, sometimes the error has nothing to do with blockage. You’ve to consider issues like a tripped breaker, small load, blown-up fuse, burnt-out heating element, dirty lint filter, and active Energy Saver.
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