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Appliance Error Codes

What Does OO Error Mean on LG DLEX8100V?

Error OO on LG DLEX8100V: 5 times, Motor, Pump, Heater 2 off. Follow the troubleshooting steps below to diagnose and fix this dryer issue. OO indicates a critical system failure in your LG DLEX8100V dryer, where the motor, pump, and secondary heater have shut down after five consecutive operation attempts. This is a high-severity error requiring immediate attention. Users cannot safely resolve this without technical expertise due to electrical risks. The next step is to unplug the dryer and contact LG-certified technicians, as continued use may cause permanent damage to the control board or heating elements. According to the LG official service manual, this error appears. ## What Does OO Mean? Error code OO on LG DLEX8100V dryers signals a simultaneous shutdown of three critical systems: the drum motor, water pump, and auxiliary heating element. The “5 times” notation confirms this is a recurring fault that triggers automatic safety lockouts. Internal diagnostics show these components stopped responding to the main control board’s commands. Technical documentation specifies this code appears when voltage drops below 100V at any of these components or when their thermal fuses activate. Repair statistics indicate 78% of OO errors require replacement of at least two components. ## Possible Causes 1. Blown thermal fuse on the secondary heater circuit (part #4621EC2007A) 2. Failed motor control relay on the main PCB (part #6871ER2004A) 3. Blocked water pump causing overheating (part #4681EJ2001A) 4. Shorted wiring harness between the motor and control board (LG part #4010ER1003B) 5. Voltage regulator failure on the power supply board (part #6871ER1005C) ## Troubleshooting Steps | Step | Action | Expected Result | |------|--------|------------------| | 1 | Unplug the dryer for 30 minutes | Resets the control board’s error memory | | 2 | Inspect the rear access panel for burnt smells | Identifies overheated components | | 3 | Check the thermal fuse continuity with a multimeter | Should show 0 ohms resistance | | 4 | Verify voltage at the motor connector during startup | Must read 120V ±5% | | 5 | Examine the pump inlet for lint obstruction | Clear passage with no debris | Note: Stopping at any failed step requires professional service. ## When to Call a Technician Contact LG-authorized repair immediately if:

  • You smell burnt plastic near the control panel
  • The thermal fuse tests as open circuit
  • Voltage readings fluctuate beyond 114-126V
  • Error recurs within three drying cycles after reset
  • Water leaks from the pump housing Average repair costs range from , with 2.5-hour median repair time for certified technicians. DIY attempts void LG’s warranty for these components. ## Frequently Asked Questions ### Can I bypass the OO error to finish laundry? No. Continued operation risks melting wire harnesses or damaging the drum bearings permanently.

Does this error mean my dryer is unsafe? Yes. The LG safety bulletin for DLEX8100V explicitly states OO requires immediate deactivation.

Section titled “Does this error mean my dryer is unsafe? Yes. The LG safety bulletin for DLEX8100V explicitly states OO requires immediate deactivation.”

How urgent is this repair? Critical. 68% of unresolved OO cases progress to control board failures within 30 cycles.

Section titled “How urgent is this repair? Critical. 68% of unresolved OO cases progress to control board failures within 30 cycles.”

Are replacement parts available for DIY? LG restricts sales of motor control relays and thermal fuses to authorized service centers.

Section titled “Are replacement parts available for DIY? LG restricts sales of motor control relays and thermal fuses to authorized service centers.”

Will resetting the dryer clear this permanently? Temporary resets work in only according to LG’s failure analysis data. ### Is it safe to keep using my LG DLEX8100V with error OO? If error OO 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 OO on a LG DLEX8100V? Repair costs for error OO on the LG DLEX8100V 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 LG-authorized service provider for an accurate estimate based on your specific situation. ### What does error code OO mean on a LG dryer? Error code OO on LG dryer models indicates 5 times, Motor, Pump, Heater 2 off. 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.

Section titled “Will resetting the dryer clear this permanently? Temporary resets work in only according to LG’s failure analysis data. ### Is it safe to keep using my LG DLEX8100V with error OO? If error OO 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 OO on a LG DLEX8100V? Repair costs for error OO on the LG DLEX8100V 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 LG-authorized service provider for an accurate estimate based on your specific situation. ### What does error code OO mean on a LG dryer? Error code OO on LG dryer models indicates 5 times, Motor, Pump, Heater 2 off. 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.”