MODEL PROFILE
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MODEL OVERVIEW
About this model: LG DLGX6701B
The Black Steel LG DLGX6701B gas dryer documents Flow Sense duct blockage percentages, sensor faults and a gas-supply installation-test message.
Confirm the gas dryer and its installation
DLGX6701B is the Black Steel gas member of LG's 6700/6701 pair, rather than the electric DLEX6700B. The exact product-linked specification gives it a 7.4-cubic-foot drum and names WM6700HBA as its matching washer. Its dial and touch controls work with an LCD that reports settings, remaining time and status messages. That combination matters when reading a warning: use the gas SKU on the rating label before applying a message or a supply instruction from the shared owner manual.
The specification calls for a 120-volt, 15-amp supply for this gas version and lists a 20,000-BTU burner, a supplied three-prong cord and three-way venting. Those facts separate its installation from the 240-volt electric sibling. They do not make the exhaust duct optional: the dryer's Flow Sense system measures restriction downstream of the machine. The door is reversible, while the stainless-steel drum and Black Steel cabinet identify the laundry appliance described by the exact SKU sheet.
Use the LCD programs to interpret normal behaviour
LG lists 23 cycles and 11 options for DLGX6701B. The owner manual describes Normal for mixed cotton, linen, shirts and jeans, AI Dry as a sensor program that adjusts time and temperature, and Bedding for bulky items. Delicates uses a lower default temperature. Steam Fresh treats a small eligible load with steam for a fixed ten minutes; it is a garment-care program rather than a repair routine. The exact specification also lists TurboSteam, sensor drying and the paired WM6700HBA washer.
On the shared 670-series control panel, the selector knob chooses a cycle, Previous and OK navigate the LCD, and Start/Pause resumes an interrupted run. The screen can show estimated time and ordinary Wi-Fi, Remote Start or Control Lock icons. A user who feels little heat at the beginning of Normal should first check Energy Saver: the manual says this option begins with an air-dry portion. This expected behaviour is different from a displayed temperature-sensor fault or a persistent vent restriction warning.
Run the installation check and read its gas-specific result
After installation, the manual recommends testing the exhaust with an empty, cool drum. Turn on the dryer, immediately hold Low Static and Options, then press Start/Pause; the test heats the drum and reports a result after a few minutes. The instructions say not to interrupt it, and caution that a normal-cycle measurement can differ from the first installation result. Even a test with no illuminated Flow Sense LED cannot prove that every bend of the home duct is clear.
The test's table includes Temp sensor error and Humidity sensor error; LG directs the user to switch the dryer off and request service for a failed sensor. Its Gas supply message is explicitly marked for gas models and means that gas service or a shutoff may be closed. Confirm both the house and dryer shutoffs are fully open. The same table contains electric power-cord and voltage entries, which should not be treated as DLGX6701B gas-dryer diagnoses.
Respond to duct warnings by severity
The Flow Sense icon on this LCD panel alerts to reduced exhaust flow. During operation, four bars or an illuminated indicator can point to a long duct, too many turns or partial lint blockage. LG recommends a shorter, straighter run and prompt inspection or cleaning of ductwork. The display may stay on for two hours after a cycle. After a blockage is cleared, several consecutive cycles may be needed before the indicator resets; service is recommended if it remains active for more than five cycles.
The troubleshooting table separately names Duct blockage (80%), (90%) and (95%) messages. For these severe restrictions, the manual says to stop using the dryer until the exhaust system is cleaned or repaired because restricted exhaust can present a fire or property risk. Check the outside hood for damage or lint and verify that air can leave freely while the appliance is running. A duct that is crushed behind the dryer or excessively long needs physical correction, not an LCD reset.
Separate a gas heating symptom from a displayed fault
The manual also lists Temp sensor error 1 in the operating error-message table; turn the dryer off and call service if it appears. By contrast, a DLGX6701B that tumbles without heat may have its gas service off even though no code appears. LG explicitly says that condition can occur without a displayed error. Confirm the two gas shutoffs and that other household gas appliances work, then distinguish it from the expected cool start of Energy Saver before assuming that a temperature sensor has failed.
Clean lint from the filter before every load, and examine it against light if drying slows. The manual warns that long or dirty ducts, overloaded drums and mismatched heavy and light fabrics can stretch cycle time. For a tiny load, the sensor may stop early because the few articles do not give it enough moisture information; the manual suggests adding wet items or choosing manual drying. These checks explain performance symptoms, but they do not override a severe 80/90/95 percent duct warning.
Verified model details
Exact gas SKU, 120 V/15 A and 20,000 BTU
Source for this detail · Source page: 1Flow Sense 80/90/95 percent duct messages
Source for this detail · Source page: 52Gas supply belongs to installation test; no-heat gas loss can show no code
Source for this detail · Source page: 29
This description summarizes the linked source documents; check each cited source for your exact model and region.
Manufacturer source
Open official source
LG DLGX6701B.ABLEEUS: Support, Manuals, Warranty & More | LG USA Product Support Page
Open official sourceIf there is a safety risk, stop using the appliance and follow the manufacturer’s instructions.