Error L2 on Whirlpool WED6620HC: Low line voltage detected — insufficient or missing supply voltage on one or bot. Follow the troubleshooting steps below to diagnose and fix this dryer issue. The L2 error code on your Whirlpool dryer indicates that the dryer is not receiving adequate voltage from the household electrical supply. Electric dryers require a 240-volt connection using two separate 120-volt legs. Check the circuit breaker panel for a tripped breaker. If both breakers are on but L2 persists, contact a licensed electrician to inspect the wiring and outlet. ## What Does L2 Mean? Electric dryers like the WED5000DW, WED6620HC, and WED8620HC operate on a 240-volt two-leg circuit. One leg powers the motor and controls, while the other powers the heating element. If one leg is missing — a common result of a single breaker tripping in a double-pole breaker setup — the dryer receives only 120 volts. The motor may run but the heating element will not activate, and the L2 code alerts you to the supply voltage problem. L2 is most common after power outages or storms that trip individual breakers in a double-pole circuit. It can also result from a loose or deteriorated connection at the dryer outlet, the breaker panel, or the dryer’s power cord plug. Always start by checking the circuit breaker panel. Double-pole dryer breakers should be reset as a unit by pushing both handles to ‘off’ first, then back to ‘on.’ A partial trip that leaves one side energized is the most common cause of L2. ## Possible Causes 1. One leg of the double-pole circuit breaker tripped, supplying only 120 volts instead of 240 volts
2. Loose or deteriorated wiring connection at the dryer outlet reducing voltage to one leg
3. Faulty power cord with a damaged or corroded plug terminal on one leg
4. Power company supply voltage issue affecting one leg of the service entrance
5. Faulty double-pole breaker that is tripping on one leg intermittently ## Troubleshooting Steps | Step | Action | Expected Result |
|------|--------|-----------------|
| 1 | Go to the household circuit breaker panel and locate the double-pole breaker for the dryer circuit — it should be a double-width breaker | Double-pole breaker is identified |
| 2 | Push both breaker handles firmly to the OFF position, then push both handles back to ON together | Both handles move together and click firmly into the ON position |
| 3 | Select a Timed Dry heated cycle on the dryer and start it | Dryer starts and heats normally — L2 does not reappear |
| 4 | If L2 returns, check the dryer power cord plug at the outlet for loose fit, heat marks, or discoloration | Plug is secure and shows no signs of overheating or arcing | Electrical supply issues in 240-volt dryer circuits can cause arcing, overheating, or fire if wiring connections are loose or deteriorated. Do not attempt repairs to the circuit wiring, outlet, or breaker panel yourself. Call a licensed electrician for any persistent L2 error that a breaker reset does not resolve. ## When to Call a Technician Contact Whirlpool authorized service if: - L2 returns immediately after resetting the circuit breaker
The dryer motor runs but the drum does not heat during a Timed Dry heated cycle
The circuit breaker is on but the outlet voltage measures only 120 volts with a voltmeter Professional repair costs for L2 issues typically range from $80 to $250 depending on the specific component and your service region. ## Frequently Asked Questions ### Why does my Whirlpool dryer show L2 but the motor still runs? The L2 error specifically indicates a problem with one leg of the 240-volt supply. On a two-leg circuit, one leg typically powers the motor and controls (120V) while the other powers the heating element. If only the heating leg is missing, the motor runs but the dryer produces no heat. L2 alerts you to this split-voltage condition.
Can a power outage cause the L2 error? Yes. Power outages and voltage fluctuations during storms commonly trip one leg of a double-pole breaker. Resetting the breaker by switching both handles off then back on usually resolves the L2 error caused by a power event.
How do I know if my dryer outlet is providing full 240 volts? A licensed electrician or a qualified technician with a voltmeter can test the outlet. With the dryer unplugged, measuring across the two hot terminals on the outlet should read approximately 240 volts. Measuring from either hot terminal to the neutral should read approximately 120 volts.
Can a faulty power cord cause L2? Yes. The dryer power cord has three or four wires. If the wire on one of the hot terminals is loose, corroded, or broken inside the cord, that leg of the 240-volt supply will be interrupted, causing L2. Inspecting the cord plug and the connections inside the dryer’s terminal block can identify this problem. Reference: Whirlpool official support documentation (whirlpool.com/support) and authorized service guides ### Is it safe to keep using my Whirlpool WED6620HC with error L2? If error L2 does not indicate an immediate safety hazard such as a gas leak, electrical short, or water flooding, you can continue limited use while monitoring the appliance. However, running the dryer with an active error code increases the risk of further damage. Address the underlying issue as soon as possible. For high-severity errors, disconnect the appliance and contact a qualified technician. ### How much does it cost to fix error L2 on a Whirlpool WED6620HC? Repair costs for error L2 on the Whirlpool WED6620HC dryer depend on the root cause. DIY fixes such as cleaning filters, resetting the unit, or reconnecting loose wires cost nothing beyond basic tools. If a component replacement is needed, parts and labor from a certified technician are the main expenses. Contact a Whirlpool-authorized service provider for an accurate estimate based on your specific situation. ### What does error code L2 mean on a Whirlpool dryer? Error code L2 on Whirlpool dryer models indicates Low line voltage detected — insufficient or missing supply voltage on one or both legs of the 240-vo. This error is detected by the appliance’s internal diagnostic system and displayed to alert the user that attention is needed. Refer to the troubleshooting steps above for guidance on resolving this issue.