Consumer Service Information I you have any questions regarding the operation of your Presto® appliance or need parts for your appliance, contact us by any of these methods: « Call 1-860-877-0441 weekdays 8:00AM 10 430 PM {Central Time). » Email us af our website www.GoPresto.com * Write: NATIONAL PRESTO INDUSTRIES, INC. Consumer Service Department 3025 N.