LG dryer won't start: check the door switch first (open and close the door, listen for a click). Then check the thermal fuse with a multimeter for continuity. Also check the start switch and the breaker. A tripped breaker on one leg gives display power but no motor.
When an LG dryer won't kick on, child lock is honestly the first thing I check because homeowners trigger it accidentally all the time and don't even know it's a feature. If that's not it, the thermal fuse is next. A blown fuse keeps the display powered but kills the motor circuit completely, and if you ignore vent restrictions long enough, you'll just keep blowing fuses every few months.
Before you start pulling panels off, check whether your display lights up at all. LG dryers have a tricky split-voltage setup where one leg of your 240V breaker powers the controls and the other powers the motor, so a half-tripped breaker looks really confusing. I've walked into houses where the owner thought the machine was totally dead and it was literally just a breaker that needed a firm flip to reset both poles.
Most Likely Causes
Based on aggregated repair data, here is the probability breakdown for this error code:
Door lock or lid switch not confirming secure closure40%
Tripped circuit breaker or blown thermal fuse24%
Control board failure from power surge14%
Child lock mode enabled accidentally12%
Stuck start button or control panel fault10%
Symptoms You May Notice
You push Start and nothing happens at all. Not even a hum or vibration. Display might be lit, drum light might work, but zero motor activity whatsoever.
A single click comes from somewhere in the console when you hit Start, but the drum doesn't turn and no motor sound follows.
'CL' is showing on the display and none of the buttons seem to do anything at all no matter what you press.
Display is completely dark. No clock, no lights, nothing, even the interior drum light won't come on.
Dryer was running mid-cycle and just stopped dead. Won't restart now, and sometimes there's a faint burning or hot-plastic smell coming from the vent area.
Can you reset a Lg dryer to clear the WONT-START code?
Unplug the dryer or flip the breaker for a full minute to let the capacitors on the main board discharge. After plugging it back in, press and hold the Power button for 5 seconds, then hold the Start/Pause button for another 5 seconds before trying a new cycle. This clears the logic board of temporary glitches.
Tools Required for Diagnosis
Phillips #2 screwdriverFlathead screwdriver (for prying plastic clips)Digital multimeterWork gloves (cabinet edges are sharp)Flashlight or headlampPhone or camera (photograph wire connections before disconnecting)
Diagnostic Checklist
Follow these steps in order. We start with the easiest external fixes before opening up the machine.
ComponentComponent Under Test
Expected Range0–1 ohms
ConditionIf Open (OL) or infinite, replace component.
Frequently Asked Questions
How much does it cost to fix an LG dryer that won't start?
Expect to pay between $150 and $350 for a professional repair. A thermal fuse or door switch is a cheap part, usually under $30, but the labor to dismantle an LG cabinet takes time. If the main control board is fried, the part alone runs $150 to $250. DIYers can save significantly here since all these parts are readily available online and LG models are pretty well documented.
Is it worth repairing an LG dryer that won't start?
If your LG is less than 10 years old, it's almost always worth fixing. These machines are built on a solid chassis and they last. Unless the motor has seized or the drum has cracked, most start-up issues are just safety components doing their job to prevent a fire. A $20 fuse is way better than an $800 new machine. I replaced three thermal fuses just this week and every one of those dryers is running again.
Can I fix my LG dryer not starting myself?
You can definitely handle a door switch or thermal fuse replacement if you're comfortable with a screwdriver and a multimeter. Just be patient with the wire harnesses. LG uses locking connectors that can be stubborn, so don't just yank on the wires or you'll create a bigger headache for yourself. Always take photos before you disconnect anything. Seriously, just a quick phone photo of the wiring saves so much frustration during reassembly.
Why does my LG dryer have power but still won't start?
This is almost always either a blown thermal fuse or a half-tripped breaker. Your dryer's 240V circuit has two legs, and if one leg trips, the display stays lit but the motor won't run. Flip that breaker firmly all the way off then back on. If that doesn't fix it, grab your multimeter and test the thermal fuse for continuity. No continuity means it's blown. I've seen this exact combination probably four times just this week alone. Both fixes are cheap and pretty straightforward.
How do I know if my LG dryer's thermal fuse is blown?
Test it with a multimeter on continuity mode. Disconnect the two wires from the fuse and touch your probes to the terminals. Good fuse beeps or reads near zero ohms. Blown fuse gives you nothing, no sound, no reading. The fuse itself is usually $8-15 and takes about 20 minutes to replace. But here's what most people miss: a blown fuse means your vent is restricted. Find and fix the airflow problem or you'll blow the new fuse within a few months. Check the whole vent run from the dryer to outside, especially any flexible sections.
Same Fix Works on These Brands
Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.