My Cart: 0 item(s)
Thumbnail Filmstrip of 56-1956-00: Replacement VR-21 Regulator Control Board for Onan 332-1956 Images
Replacement Onan Voltage Regulator Control Board
Features:
- Mounting footprint and terminal locations are identical to original board.
- Heavy conformal coating applied for moisture and vibration resistance.
- Improved power supply promotes cooler and more efficient operation.
- NEW: Soft-start, field over-voltage limiting, and open-circuit external pot protection.
- NEW: Diagnostic indicators for easier troubleshooting.
- NEW: Adjustable under-frequency setpoint (V/F).
- NEW: User programmable voltage sensing allows one board to cover all variants.
- This item is built in the USA and backed by a 2-year warranty.
Maintenance Suggestion: When replacing the Onan VR21 Controls, Flight Systems Technical Service recommends replacing the SCR Pack*. You can purchase the SCR pack directly from us or through an Onan dealer.
*Older units may use a multi-component SCR assembly (332-0491) – if this has failed, we can convert to use the newer SCR Pack, but the assembly must be sent to our shop.
Return Policy: Unwanted items may be returned within 30 days of the original purchase date. Refund/credit issued will be subject to a 25% per item restocking/re-test fee as long as unit is in new, undamaged condition. Shipping charges are not refundable.