LG Dryer DVE55A7300E — Troubleshooting, Common Failures & How to Fix Them
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
This guide covers the LG electric dryer model DVE55A7300E and the most common problems owners see: no heat or long dry times, dryer won’t tumble, loud noises, and error codes/controls problems. Below are step-by-step diagnostic checks and practical repair steps you can perform at home. 1) Safety first: always unplug the dryer (or switch off the breaker for electric dryers) and, for gas models, turn off the gas supply before working on the unit. Allow the dryer to cool. 2) If the dryer won’t heat or takes too long to dry: a) Visual & airflow checks: remove lint screen and inspect; remove the rear vent connection and try a run with the dryer pushed out and vent disconnected to see if it heats faster — poor venting is the number one cause of long dry times. Clean the lint trap, duct, and exterior vent. b) Check the thermal fuse: locate (usually on the blower housing or exhaust duct) and test for continuity with a multimeter; an open thermal fuse indicates failure and the dryer will not heat. Replace thermal fuse if open. c) Test heating element: disconnect power and access the heating element assembly; visually inspect for breaks and use a multimeter to check continuity. Replace the heating element if it’s open. d) Check thermostats and thermal cut-offs: test cycling thermostat and high-limit thermostat for continuity; replace any that are open. e) Check voltage (electric dryers): verify the dryer is receiving proper 240V (two hot legs) at the terminal block. Low/partial voltage can result in no or low heat. 3) If the dryer won’t tumble or won’t start: a) Verify power: check plug and breaker. b) Check the door switch: dryer won’t start if the door switch is faulty — test for continuity when door is closed. c) Inspect the drive belt: remove the front panel or cabinet, visually inspect belt for breakage; if broken replace belt. d) Check motor & start components: if belt is intact but drum won’t turn, test motor for continuity and for signs of seized bearings; replace motor if necessary. e) Check control / start switch and wiring for voltage. 4) If dryer is noisy or squeals: a) Inspect drum rollers and front/rear bearings: worn rollers or bearings produce rumble/squeal — replace worn rollers, shafts, or support bearings. b) Inspect idler pulley and belt: idler with worn bearing or glazed belt will squeal; replace as needed. c) Check blower wheel for debris or damage. 5) Error codes & electronic problems: consult the user manual for display codes; simple resets: unplug for 5 minutes to reset the control. Persistent codes pointing to sensors or main control likely require replacing the sensor or main PCB. 6) Moisture sensing problems: clean the moisture sensor bars inside the drum (behind the lint screen) with rubbing alcohol to remove residue. 7) Final test: after repairs, reassemble, restore power, and run a test load. Monitor heat, tumble, and noise. Safety note: always disconnect power before working inside the dryer. Thermal fuses are one-time-use safety devices; do not bypass them. If you’re uncertain about handling high-voltage checks or gas connections, call a qualified technician.
Common Symptoms
No heat or weak heat; dryer runs but drum doesn't turn; long dry times; loud scraping or squealing noises; error codes or unresponsive controls.
Common Causes
- Clogged lint screen or venting causing poor airflow
- Open thermal fuse or failed high-limit thermostat
- Broken heating element or faulty temperature sensors
- Worn drive belt, drum rollers, or idler pulley causing no tumble or noise
- Failed motor or control board/electronics
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
To confirm a heating-related failure, run the dryer empty for 5–10 minutes with the vent disconnected and the lint screen removed—if heat improves dramatically, the venting is the culprit; if not, test the thermal fuse and heating element for continuity with a multimeter.
Frequently Asked Questions
How do I know if the thermal fuse is bad on my DVE55A7300E?
If the dryer runs but produces no heat at all, the thermal fuse is a likely culprit. Disconnect power, access the thermal fuse (usually on the blower housing or duct), remove it and check continuity with a multimeter — a working thermal fuse will show continuity (low ohms). If it reads open (OL), replace the fuse. Also inspect vents: an overloaded or blocked vent can overheat and blow the fuse, so clear any vent blockage before replacing the fuse.
Can I repair common issues on the DVE55A7300E myself or do I need a technician?
Many basic repairs are DIY-friendly if you have a multimeter, screwdrivers, and basic mechanical skills: cleaning vents, replacing the lint filter, swapping the thermal fuse, replacing the drum belt, rollers, idler pulley, or heating element. Always unplug the dryer first and follow the model-specific disassembly steps. For gas line work, high-voltage checks, or complex electronic diagnostics (main PCB replacement), or if you aren’t comfortable working with wiring, call a certified appliance technician.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.