Description
The Viking VFLEXPCBU16 2016 Control Board is the central controller for Viking DC gate operators, delivering UL325-compliant safety, precise motor control, and dependable performance across legacy and current systems.
In practical terms, this replacement board governs gate movement, monitors obstruction sensing, and provides on-board diagnostics to speed maintenance. It supports residential, commercial, and light-industrial applications, with 24VDC operation, 120/240VAC single-phase input, and 24VDC accessory output at 750mA. The unit includes a thermostat-controlled heater for operation in extreme temperatures (-20°F to 160°F), surge protection up to 20,000 volts / 10,000 amps, and a battery backup capable of up to 400 full cycles on a 600 lb gate, enabling continued access during power outages. The on-board LCD displays live diagnostics, cycle counts, motor current, and fault codes for quick troubleshooting and uptime. All-weather design ensures reliable performance in outdoor environments.
Compatibility and identification: This board is designed to work with most Viking DC operators, including R6, F1, K2, L3, G5, T21, and X390 (excludes H-10 models). For correct identification, reference the Variant Reference Guide: VFLEXPCB Black (pre-2016), VFLEXPCBU16 Green (2016), VFLEXPCBU18 Orange (post-2018).
| Board Model | Logo Color | UL Compliance Year | Common Usage |
|---|---|---|---|
| VFLEXPCB | Black | Pre-2016 | Original version prior to 2016 UL updates. Used in early Viking DC operators with basic diagnostics. |
| VFLEXPCBU16 | Green | 2016 | UL325 Updated to meet 2016 UL safety standards. Improved obstruction sensing and logic behavior (legacy version). |
| VFLEXPCBU18 | Orange | Post-2018 | Current production model featuring enhanced surge protection, advanced diagnostics, and requires a monitored photoeye. |


