Thetford N3 Series Fridge PCB - 691101 £150.00 Out of Stock Details: Thetford N3 Series Fridge PCB Thetford part number - 691101 New item. Thetford N3 Series Fridge PCB - 691101 SKU: 7069 £150.00 - Sorry, sold out Call us on 01422 384508 for more information on this product.