🏪Commercial Refrigeration Error Codes
Commercial refrigeration error codes and diagnostics. Ice machines, walk-in cooler controllers, reach-in display cases, and refrigeration system faults including Hoshizaki, Manitowoc, Scotsman, True, and Heatcraft equipment.
106 guides · Top brands: Hoshizaki, Manitowoc
Section editor: Error Code Fixes Editorial Team ·
Most Common Commercial Refrigeration Fixes
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Ice Machine Error Code Lookup: All Brands
Master ice machine error code lookup guide covering Hoshizaki, Manitowoc, Scotsman, Ice-O-Matic, Follett, and more.
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Hoshizaki Ice Machine E1 Error Code — Water Inlet Fix
Hoshizaki E1 error code means the ice machine has a water inlet problem. This guide covers float switch, inlet valve, and water supply fixes for Hoshizaki commercial ice makers.
Recent Commercial Refrigeration Guides
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Hoshizaki E1 Error Code - Causes & Fix
E1 means the freeze cycle ran too long and timed out. Most often a leaking water inlet valve or low water supply is to blame.
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Carrier Error Code 28 - Causes & Fix
Carrier alarm code 28 (A28) signals a refrigerant system fault on reefer units. Learn common causes, diagnostic steps, and repair procedures.
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Copeland Discus Compressor Trip Codes — CoreSense Diagnostic Reference
Copeland Discus compressors equipped with CoreSense protection trip on internally-monitored faults — high discharge temperature, motor protection trip, low...
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Heatcraft Beacon II E1 Error Code — Sensor Fault Fix
Heatcraft Beacon II E1 means the controller can't read one of its connected temperature sensors — open, shorted, or wildly out of range. It's almost always...
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Kelvinator Commercial Walk-In Controller Fault Codes
Kelvinator commercial walk-in controllers (KCS and KCD product lines, manufactured under the Heatcraft / Lennox umbrella since the brand consolidation) use...
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Manitowoc E15 Error Code — High-Side Pressure Switch Open Fix
E15 on a Manitowoc ice machine means the high-side pressure switch opened — discharge pressure exceeded its trip setpoint, typically 450 PSIG on R-404A...
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Scotsman 6-Flash Code — Refrigerant Pressure Out of Range Fix
A 6-flash code on a Scotsman Brilliance-series ice machine means the controller has detected refrigerant pressure outside the expected operating range —...
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Manitowoc E01 Error Code — Long Freeze Cycle Fix
E01 means the machine ran more than 60 minutes trying to make one batch of ice and gave up. Nine times out of ten it's a dirty condenser starving the head...
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Manitowoc E02 Error Code — Long Harvest Cycle Fix
E02 means the ice slab refused to drop off the evaporator plate within 3.5 minutes of the harvest valve opening. Eight out of ten times it's a scaled...
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Manitowoc E03 Error Code — Probe / Thermistor Open Fix
E03 means the control board cannot read the evaporator thermistor — the circuit is open. Half the time it's a connector that came unseated during cleaning;...
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Manitowoc E54 Error Code — Water Curtain Switch Open Fix
E54 means the water curtain switch is reading open when the board expects it closed — the controller thinks the curtain is swung open and won't start a...
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Manitowoc HPCO Error Code — High Pressure Cut Out Fix
HPCO means the high-pressure cutout switch opened — discharge pressure hit roughly 450 PSI on an air-cooled unit and the safety tripped the compressor...
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