Southwire Surge Guard (portable LCD) error code L1 LOW / L2 LOW (WAS xxV)
Low voltage: the line voltage dropped below 102 V and the unit turned RV power off. 'WAS xxV' records the voltage it saw (example 'L1 LOW WAS 99V'); L2 appears on the 50A models only. Southwire's guide says the usual cause is an overloaded park grid; the 34930/34950 manual adds 'only partial power at 50 Amp source' and 'no power at source'. Once the voltage recovers the unit restores power after 128 seconds. Trip time: the spec tables in both operating manuals say 7 seconds; troubleshooting guide 506-00022A says below 102 VAC for more than 7 seconds and above 136 VAC for more than 8 seconds. CONFLICT (logged): both operating manuals (505-00152A and 505-00170A) and page 1 of troubleshooting guide 506-00022A give 102 / 136 VAC. Southwire's training manual lists the full-feature portables as Low (<102V) / High (>132V), and the error table on page 2 of 506-00022A prints the limits reversed ('lower voltage to >132V', 'raise voltage to <102V'). The suite uses the operating-manual figures, 102 / 136 VAC.
What to check, and in what order, is in the app. The flow Southwire Surge Guard portable - LCD message to cause (pedestal, coach or unit) walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Surge Guard Installation & Operating Instructions, Models 34931 / 34951 (30A / 50A Portable, wireless)Southwire Company, LLC
- Surge Guard Installation & Operating Instructions, Models 34930 / 34950 (30A / 50A Portable)Southwire Company, LLC
- Surge Guard Troubleshooting Guide, Model 34930 (30A Portable with LCD Display)Southwire Company, LLC
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