Manitowoc

TroubleshootingQM45/Q130/Q170/Q210/Q270DIAGNOSING AN ICE MACHINETHAT WILL NOT RUN! WarningHigh (line) voltage is applied to the control board(terminals # 2 a nd # 4) at a ll times. Re movingcontrol board fuse o r moving the tog gle switch toOFF wi ll not remove the po wer supp lied to thecontrol board.1. Verify primary voltage is supplied to ice machineand the fuse/circuit breaker is closed.2. Verify control board fuse is okay.3. If the bin switch light functions, the fuse is okay.4. Verify the bin switch functions properly. Adefective bin switch can falsely indicate a full binof ice.5. Verify ON/OFF/WASH toggle switch functionsproperly. A defective toggle switch may keep theice machine in the OFF mode.6. Verify low DC voltage is properly grounded. LooseDC wire connections may intermittently stop theice machine.7. Replace the control board.8. Be sure Steps 1 – 5 were followed thoroughly.Intermittent problems are not usually related tothe control board.Part Number 80-01111-9 7/10 99