Manitowoc Q450 Service Technician's Handbook

Also see for Marine Q 1000: Use and care manual Installation instructions Service manual

Contents

ñ46ñMain FuseFUNCTIONThe control board fuse stops ice machine operation ifelectrical components fail, causing high amp draw.SPECIFICATIONSThe main fuse is 250 Volt, 7 amp.CHECK PROCEDURE1. If the bin switch light is on with the water curtainclosed, the fuse is good.2. Remove the fuse. Check for continuity across thefuse with an ohmmeter.! WarningHigh (line) voltage is applied to the control board(terminals #55 and #56) at all times. Removing thecontrol board fuse or moving the toggle switch toOFF will not remove the power supplied to thecontrol board.! WarningDisconnect electrical power to the entire icemachine before proceeding.Reading ResultOpen (OL) Replace fuseClosed (O) Fuse is good