LG Dryer Not Heating
An LG dryer that tumbles but produces no heat usually has a blown thermal fuse, a failed heating element, or — on an electric dryer — only half of its 240-volt supply. Restricted venting is the underlying cause in most cases: trapped heat trips the fuse, and replacing the fuse without clearing the vent simply blows it again.
Typical repair
$195–$420
incl. $75–$120 call-out
Usual part
Heating element or thermal fuse
$120–$300 parts & labour
Safe to check yourself
1 of 6
causes, before calling out
Want it diagnosed today?
1-888-298-3714Why a LG dryer stops heating
Ordered by how often each one turns out to be the cause.
Blocked lint filter or vent duct
You can check thisThis is the root cause behind most no-heat faults. Restricted airflow makes the cabinet overheat, which trips the thermal fuse or high-limit thermostat by design.
What to do: Clean the lint screen, then disconnect the duct at the back and check for a compacted lint plug. Confirm the exterior vent flap opens when running.
Blown thermal fuse
TechnicianA one-shot safety device that opens permanently after an overheat. On many models it cuts the heating circuit only, so the drum keeps turning with cold air.
How it is diagnosed: A technician tests the fuse for continuity — and, critically, finds why it blew before fitting a new one.
Failed heating element (electric dryers)
TechnicianThe coil breaks or grounds against its housing. A grounded element can also heat constantly or not at all.
How it is diagnosed: A technician measures the element resistance and checks for a short to the housing.
Only one half of the 240-volt supply present (electric dryers)
TechnicianAn electric dryer uses 120 V for the motor and 240 V for the element. Lose one leg of the supply and the drum turns normally while the element gets nothing — a very common and often misdiagnosed fault.
How it is diagnosed: Reset both halves of the double breaker fully. If it recurs, the breaker or supply needs an electrician.
Failed igniter or gas valve coils (gas dryers)
TechnicianA weak igniter glows but never reaches the temperature needed to open the valve, so the burner never lights.
How it is diagnosed: Diagnosis requires watching the burner cycle with the panel off. This is technician work — see the safety note below.
Failed cycling or high-limit thermostat
TechnicianThe thermostat that regulates burner or element cycling can fail open, cutting heat while everything else runs.
How it is diagnosed: A technician tests each thermostat for continuity at room temperature.
Before you start
- Unplug the dryer, or switch off both halves of its double breaker, before removing any panel. Electric dryers carry 240 volts.
- Gas dryers: do not attempt igniter, burner or gas-valve work yourself. A partially seated gas connection can leak without any smell reaching you.
- A dryer that overheats repeatedly is a fire risk. Stop using it until the venting has been cleared and the cause found.
- Never run a dryer with the vent duct disconnected indoors — gas models discharge combustion products.
What is specific to LG
LG dryers report flow-sensor faults that present as long dry times before they present as no heat, so this often starts as clothes taking two cycles to dry.
All LG dryer repairWhat the repair costs
| Diagnostic call-out | $75–$120 |
|---|---|
| Heating element or thermal fuse — parts and labour | $120–$300 |
| Typical total | $195–$420 |
| Comparable new unit | $550–$1,400 |
| Typical service life | 12 years |
Typical national ranges, not a quote. True Appliance Repair connects you with independent local technicians — the price depends on your model and what the technician finds.
Common questions
Why is my LG dryer not heating?
Blocked lint filter or vent duct is the most common cause. This is the root cause behind most no-heat faults. Restricted airflow makes the cabinet overheat, which trips the thermal fuse or high-limit thermostat by design.
How much does it cost to fix a LG dryer that is not heating?
Expect roughly $195–$420 for a typical repair, covering the heating element or thermal fuse plus labour and the $75–$120 diagnostic call-out. Parts and labour alone run $120–$300. These are typical national ranges, not a quote — the actual price depends on your model and what the technician finds.
Is it worth repairing, or should I replace it?
A repair at $195–$420 is well under half the $550–$1,400 cost of a comparable new unit, so repair is usually the economical choice within the 12-year typical service life. Past that age the calculation shifts toward replacement.
Can I fix this myself?
1 of the 6 common causes are safe to check yourself, starting with blocked lint filter or vent duct. The remainder involve testing components under power and should go to a technician. Unplug the dryer, or switch off both halves of its double breaker, before removing any panel. Electric dryers carry 240 volts.
How long does the repair take?
Most dryer repairs of this type are completed in a single visit once the fault is confirmed, provided the part is a common one. Parts for this repair are usually stocked or available quickly.
Is there anything specific to LG with this fault?
LG dryers report flow-sensor faults that present as long dry times before they present as no heat, so this often starts as clothes taking two cycles to dry.
Still not fixed?
Tell us what your LG dryer is doing and we will connect you with a local technician who repairs LG dryers every day.
1-888-298-3714