All rechargeable dry chemical extinguishers are recharged for the following reasons: When the extinguisher has had any use, including partial discharge. When the pressure gauge is below (or above) the operable range. When extinguisher weight is below (or above) the allowable gross weight range on the nameplate.
Call FISERV Customer Service at this Number for good services. 1  Phone Number: 800-872-7882. 2  Call Time: Average Wait: Unknown â 24 hours, 7 days. 3  Talk to human: Direct to human.  For online help: FISERV Customer 1  Care. Company URL: http://www.fiserv. 2 com. useful tools &. number to call: call via  web.
Contact Us by Phone. Call us at 1-800-321-3950. Our Customer Service Representatives are available to assist you: M-F 8am - 9pm; Sat 9am - 5pm ET . You can access our Interactive Voice Response (IVR) unit by telephone seven days a week, 24 hours a day.