Lippert Awning: “Lock LED blinking — low voltage”
warning RV awning problems
What it means
The Smart Arm controller has detected battery voltage that is too low to safely run the awning motor. On these units the touchpad lock LED blinks continuously to flag a fault, and the awning's LED light strip starts flashing during use once the supply drops below about 11 volts. This is a protective warning, not a hardware failure of the awning itself.
Most likely causes
- Discharged or weak RV battery (common when boondocking or with the converter off) most likely
- RV not connected to shore power or the battery not charging common
- Corroded or loose 12V power/ground connection causing voltage drop common
- Failing battery that cannot hold voltage under the motor's load less common
Safe checks you can do yourself
- Measure battery voltage at rest; healthy 12V systems read about 12.6V when fully charged.
- Connect to shore power or run the engine/generator to charge the battery, then retry.
- Inspect and clean the awning's 12V supply and ground connections for corrosion or looseness.
- Note whether the awning light only flashes under load, which points to voltage sag rather than a controller fault.
How to reset / clear Lock LED blinking — low voltage
- Restore the battery to a full charge (shore power, generator, or engine charging).
- Press and hold the lock button for three seconds to power the controller on and retry operation.
- If the fault was momentary, normal operation resumes once voltage is back above the threshold.
When to call a technician
The lock LED keeps blinking even with a confirmed fully charged battery and clean, tight connections, or if you measure good voltage at the motor but it still will not run.
Applies to
Solera Smart Arm 12V power awning · Solera 3500 Series Smart Arm · Smart Arm assemblies produced after May 2018
FAQ
What does Lippert Awning code "Lock LED blinking — low voltage" mean?
The Smart Arm controller has detected battery voltage that is too low to safely run the awning motor. On these units the touchpad lock LED blinks continuously to flag a fault, and the awning's LED light strip starts flashing during use once the supply drops below about 11 volts. This is a protective warning, not a hardware failure of the awning itself.
How do I reset Lippert Awning Lock LED blinking — low voltage?
Restore the battery to a full charge (shore power, generator, or engine charging). Press and hold the lock button for three seconds to power the controller on and retry operation. If the fault was momentary, normal operation resumes once voltage is back above the threshold.
What is the most common cause of Lock LED blinking — low voltage on a Lippert Awning?
The most likely cause is discharged or weak rv battery (common when boondocking or with the converter off).
Related · Lippert awning
On Smart Arm units with the optional wind sensor, the awning… Lock LED blinking — Level 1 fault
A Level 1 fault means moisture has been detected in the main… Lock LED blinking — Level 2 fault
A Level 2 fault means moisture has been detected in the touc…
Sources
- Solera Awning Smart Arm Owner's Manual — Introduction and Error Codes For Assemblies Produced After May 2018, Form CCD-0001359, Rev 08.22.18 (Lippert Components, Inc.)
Note: The low-voltage alert and the moisture faults all use the same continuously blinking lock LED, so the blink itself does not distinguish them. Voltage cause is inferred when the awning light flashes under load and battery voltage is low.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.