Refrigerated Cabinet Flowchart - Manitowoc Multiplex N2Fusion Service Manual

Troubleshooting

REFRIGERATED CABINET FLOWCHART

Power Supplied?
Yes
Evaporator Fan
Energized?
Yes
Refrigerator Is
Warm?
Yes
Temperature Set
45º- 36º
Yes
Compressor On?
Yes
Compressor Runs
Continuous?
40
Plug In, Reset Breaker
No
NO Power To Fan Motor?
No
Refrigerator Is
No
Cooling Product?
No
Too Many Door Openings,
No
Reset Temperature
Compressor Overload is Closed
Start Components Function
No
Condenser Fan Motor Functions
Voltage Must Be Within 10% Of Nameplate At
Temperature Set Too Low
Ice On Evaporator Coil
Low On Refrigerant
Restricted Clearances
Dirty Condenser Coil
Yes
Shaft Turns?
Repair Wiring
Adjusting Opens
Yes
Thermostat?
Too Much Warm Product,
Ice On Evaporator Coil
Fan Not Energized
Verify:
Compressor Startup
Check:
High Ambient
No Replace Motor
Yes Replace Fan Blade
No Replace Thermostat
Verify New Setting Cycles
Yes
Machine On/Off
Part Number 020007115 06/27/2019
Section 5