
Ice Makers
Undercounter, nugget and countertop machines: no ice, small cubes, cleaning.
5 field manuals · 36 error codes · 14 diagnostic guides · 5 brands
Field service manuals
Diagnostic guides
GE Profile · 3 codes
GE Profile · Ice Maker
All lights flashing
Auger motor not turning / overloaded
The auger motor is not turning or is overloaded, so the machine stops and flashes its lights. GE says to reset by pressing ON/OFF.
GE Profile · Ice Maker
Check Water (flashing red)
Low water supply
The water supply is low. The control rechecks for water about every 20 minutes and resumes on its own once supply is restored.
GE Profile · Ice Maker
Time to Clean
Cleaning/descale reminder (single source)
Reported as the descale/clean reminder.
GE Profile Opal · 10 codes
GE Profile Opal · Ice Maker
Add Water
Reservoir needs water
The reservoir level is too low. If it stays on with water present, a dirty or scaled water sensor is a common cause.
GE Profile Opal · Ice Maker
Blue ring
Needs water (or cannot sense/pump water)
Blue means the reservoir needs water. If it stays blue with a full reservoir, the unit cannot pump or sense the water: suspect the pump, level sensor, scale or air in the line.
GE Profile Opal · Ice Maker
Descale light
Descale reminder
A reminder that comes on after about 100 hours of ice making.
GE Profile Opal · Ice Maker
Filter light pulsing
Replace filter (single source)
Reported as the reminder to replace the water filter.
GE Profile Opal · Ice Maker
Green ring blinking
Unit losing power / cycling on its own
The ring normally lights green when the unit is switched on or off. Blinking green without a button press means the unit is losing power or turning itself on and off.
GE Profile Opal · Ice Maker
Pulsing / spinning yellow ring
Clean or rinse cycle in progress
Not a fault. In Clean mode the ring pulses yellow, spins while a cycle runs and pulses again when it ends (time to drain).
GE Profile Opal · Ice Maker
Sanitize light
Sanitize reminder (single source)
Reported as a reminder after about 25 hours.
GE Profile Opal · Ice Maker
Slow rotating white / squeak (defrost)
Automatic defrost
Not a fault. Ice building up around the auger triggers an automatic defrost (GE: 10-45 minutes); squeaking often comes first.
GE Profile Opal · Ice Maker
Solid yellow ring
Cleaning due
A steady yellow ring means the unit is ready to be cleaned.
GE Profile Opal · Ice Maker
White ring
Bin full (solid white ring)
A solid white ring means the bin is full and the Opal is idle in energy-saver mode. Falling white icicles mean it is making ice; slowly falling icicles mean it is defrosting.
Hoshizaki · 9 codes
Hoshizaki · Ice Maker
1 beep (every 3 s)
High-temperature safety lockout
The suction-line thermistor reached about 127°F, so the board shut the machine down and locked it out until manually reset.
Hoshizaki · Ice Maker
2 beeps
Long harvest
Harvest ran past the 20-minute limit (orange "20 min" LED on some boards).
Hoshizaki · Ice Maker
3 beeps
Two long freeze cycles (max freeze time)
The freeze cycle ran past its maximum time twice in a row (the limit is set on the board, typically around 50-75 min), so the unit locks out.
Hoshizaki · Ice Maker
4 beeps
Bin control short (K4)
Short circuit at the mechanical bin control connection (K4).
Hoshizaki · Ice Maker
5 beeps
Bin control open (K4)
Open circuit at the mechanical bin control connection (K4).
Hoshizaki · Ice Maker
6 beeps
Low voltage
Supply voltage dropped too low; the board shuts down and restarts when voltage returns.
Hoshizaki · Ice Maker
7 beeps
High voltage
Supply voltage too high; the unit shuts down.
Hoshizaki · Ice Maker
8 beeps
Gear motor / compressor relay de-energized
The relay feeding the compressor and gear motor dropped out.
Hoshizaki · Ice Maker
9 beeps
Bin control check (bin full)
Bin full and the proximity switch opened, so the board stopped production to prevent overfill.
Scotsman · 11 codes
Scotsman · Ice Maker
1 / 1 flashing
Long freeze
Flashing: freeze cycle too long, retrying. Steady: unit shut down after long freezes.
Scotsman · Ice Maker
1 / 1 flashing (flaker/nugget)
No ice sensed
No ice detected; flashing means retrying, steady means shut down.
Scotsman · Ice Maker
2 / 2 flashing
Long harvest
Flashing: harvest too long, retrying. Steady: unit shut down.
Scotsman · Ice Maker
2 / 2 flashing (flaker/nugget)
Auger motor high load
Auger motor drawing high current; flashing retrying, steady shut down.
Scotsman · Ice Maker
3
Slow water fill
The reservoir filled too slowly.
Scotsman · Ice Maker
3 (flaker/nugget)
No water in reservoir
Reservoir did not fill.
Scotsman · Ice Maker
4
High discharge temperature
Compressor discharge temperature too high.
Scotsman · Ice Maker
4 (flaker/nugget)
Refrigeration pressure too high or low
Pressure control opened: refrigeration pressure out of range.
Scotsman · Ice Maker
5
Sump temperature sensor failed
Sump temperature sensor failure.
Scotsman · Ice Maker
7
Discharge temperature sensor failed
Discharge temperature sensor failure.
Scotsman · Ice Maker
8 / 8 flashing
Short freeze / thin ice
Freeze cycle ended too early, producing thin ice; flashing means retrying.
Whirlpool / KitchenAid · 3 codes
Whirlpool / KitchenAid · Ice Maker
Clean light blinking
Cleaning cycle in progress or interrupted
The Clean button blinks while a cleaning cycle runs (about 70-90 minutes). If the cycle was interrupted it keeps blinking until you press Clean to resume.
Whirlpool / KitchenAid · Ice Maker
Cleaning Needed
Cleaning due
The machine is asking for a cleaning cycle. Whirlpool suggests cleaning about every 9 months (6 with very hard water) or when output drops.
Whirlpool / KitchenAid · Ice Maker
Replace Filter
Filter change reminder
Comes on after about 9 months or 2,000 gallons.
Official manufacturer support
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