LG gas dryer gAS (displayed as “9A5” on alphanumeric screens) means no gas supply detected. Check that the gas shutoff valve is fully OPEN—handle parallel to the pipe. Verify gas service is active by checking other gas appliances. If gas is flowing but the error persists, the internal gas valve or igniter needs professional service.
| Error Code | gAS / 9A5 |
|---|---|
| Meaning | No gas supply to dryer |
| Difficulty | Easy to Medium |
| Time to Fix | 10-30 minutes |
| Tools Needed | Flashlight |
| DIY Fixable | Yes |
| Official Source | LG Support |
The gAS code on LG gas dryers indicates the appliance is not receiving gas supply. On models with alphanumeric displays, this code appears as “9A5”—the display is spelling “GAS” using available characters.
This code applies ONLY to gas dryers (DLG/DLGX series).
Critical Gas Safety Information
If you smell gas at any time:
- Do NOT operate any electrical switches (including lights)
- Do NOT use your phone inside the house
- Leave the building immediately
- Call your gas company from outside
- Do not return until cleared by a professional
Gas leaks are extremely dangerous. The gAS error itself means gas isn’t reaching the dryer—if you DON’T smell gas, proceed with troubleshooting below.
Understanding the gAS / 9A5 Code
The dryer’s control board detects that:
- The igniter glowed (attempting to light)
- No flame was established
- After several attempts, the dryer displays gAS
Note: The alphanumeric display uses “9” for “g”, “A” for “A”, and “5” for “S”—spelling “9A5” to show “gAS”.
Common Causes
- Gas shutoff valve closed (most common)
- Gas line kinked
- Gas not connected during installation
- Home gas service interrupted
- Faulty gas valve solenoid (internal)
- Failed igniter
Step-by-Step Fix
Step 1: Locate the Gas Shutoff Valve
The manual shutoff is on the gas supply line, typically:
- Behind the dryer
- On the wall near the dryer hookup
- In the basement/utility room along the gas line
It’s a lever or handle attached to a pipe.
Step 2: Check Valve Position
OPEN position: Handle is PARALLEL to the pipe (in line with gas flow)
CLOSED position: Handle is PERPENDICULAR (90° to the pipe)
If the valve is closed, turn it to the open position.
If the gas valve hasn’t been turned in years, it may be stiff. Turn it slowly and gently. If it won’t budge or feels corroded, don’t force it—have a plumber replace the valve.
Step 3: Inspect the Gas Line
Check the flexible gas connector (the corrugated metal hose) for:
- Kinks or sharp bends
- Visible damage or corrosion
- Proper connections at both ends
Do NOT attempt to repair gas line damage yourself—have it replaced by a professional.
Step 4: Verify Gas Service
Check if other gas appliances in your home work:
- Gas stove/range burners
- Gas water heater
- Gas furnace
If NO gas appliances work: Gas service may be interrupted. Contact your gas utility company.
If OTHER appliances work: The problem is specific to the dryer connection or internal components.
Step 5: Check for Gas Flow
With the dryer running a heat cycle:
- Observe the igniter through the inspection window (if your model has one)
- The igniter should glow orange/red
- After glowing, a blue flame should appear
If igniter glows but no flame: Gas valve solenoids may be faulty (common failure)
If igniter doesn’t glow: Igniter may be faulty
Step 6: Factory Reset
After verifying gas supply is open:
- Unplug dryer
- Press and hold POWER/START for 5 seconds
- Press and hold PLAY/PAUSE for 5 seconds
- Plug back in and test
Flame Color Guide
When the dryer does light:
| Flame Color | Meaning |
|---|---|
| Blue with small yellow tips | Normal, proper combustion |
| Mostly yellow/orange | Incomplete combustion—needs service |
| Flickering irregularly | Possible draft issue or dirty burner |
Yellow flames indicate incomplete combustion and can produce carbon monoxide. Have the dryer serviced immediately.
Carbon Monoxide Safety
Gas dryers that aren’t venting properly can produce carbon monoxide (CO).
CO poisoning symptoms (in increasing severity):
- Headache
- Dizziness
- Nausea
- Confusion
- Loss of consciousness
If you experience these symptoms while the dryer is running, especially with others in the home affected:
- Turn off the dryer
- Open windows
- Leave the house
- Seek medical attention
Prevention: Ensure your dryer vents to the exterior and the vent system is clear (FlowSense d80-d95 codes warn of blockages).
Model Coverage
gAS/9A5 applies ONLY to:
LG Gas Dryers: DLG and DLGX series
Does NOT apply to electric (DLE/DLEX) or heat pump (DLHC) dryers.
When to Call a Professional
Contact a qualified technician if:
- Gas valve is open but gAS persists
- Igniter glows but flame never lights (gas valve solenoid failure)
- Igniter doesn’t glow (igniter failure)
- You smell gas (call gas company immediately)
- Flames are yellow instead of blue
- You’re uncomfortable working around gas components
Typical repair costs:
- Gas valve solenoid replacement: $150-250
- Igniter replacement: $100-200
- Gas line repair: $100-300 (by licensed plumber)
Sources
For official LG support: