Ice-O-Matic Error 2: slow POWER flash when off, water thermistor
The thermistor in an Elevation CIM reads the water temperature in the sump and runs the anti-slush step, which pauses the pump briefly near freezing so the water does not turn to slush.
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- Sensors and bin control
- Ice machine bin control repair
- Source: Ice-O-Matic
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What Error 2
actually means.
The thermistor in an Elevation CIM reads the water temperature in the sump and runs the anti-slush step, which pauses the pump briefly near freezing so the water does not turn to slush. When the thermistor reading is lost, the board shows a slow POWER flash, but only while the unit is off.
Ice-O-Matic ice machine display
What to do when Error 2 shows on the ice machineKind of codeSensors and bin control
A sensor is telling the board something that is not true: a bin control that reads full on an empty bin, or empty while ice spills over the top, a curtain switch stuck open, a temperature sensor out of range, or an eye on a dispenser that no longer sees the cup. Scale and slime on a probe or an ultrasonic sensor cause much of it. Clearing ice piled against the bin control is a safe first step; testing and replacing a sensor is a technician's.
Usually leads toIce machine bin control repair
The thermostat bulb, paddle, curtain switch or electronic eye that senses a full bin, adjusted or replaced so the machine stops and restarts on time.
Shows up asIce Machine Error Code or Flashing Light: What It Is Telling You
An ice machine error code may show as a number on a small display, a pattern of blinking lights on the control board, a colored light on the front, or a machine that stops with one indicator flashing.
MakeIce-O-Matic
Ice-O-Matic machines get a visit that starts at the water inlet and the distribution tube, where scale often shows up first.
SourceIce-O-Matic Elevation Series CIM modular cuber technical service manual (5/11/26)
Elevation Series CIM modular cubers. Codes show as red and yellow flash patterns on the POWER and CLEAN buttons of the push pad and the board. Boards before serial 2106 grouped some limits differently.
Before you book,
in this order.
Each step comes from Ice-O-Matic's own guidance for Error 2 on its ice machines. Follow it to the end: the last card says whether this is a visit.
Switch the unit off and watch the POWER light: a slow flash confirms Error 2.
Note whether recent batches had slushy water or cloudy, soft cubes.
Book a visit to test and replace the thermistor.
Still there?
It usually turns into ice machine bin control repair. Book with the code and the model number.
What not to do
Error 2 is not a freeze or harvest problem, and the slow flash appears only in the off state. A slow blue flash during operation is a restart delay, not an error.
What you may
notice with it.
The ice machine problems Error 2 tends to arrive with. Answer these at the ice machine before anyone is booked.
All problems
Where Error 2 usually leads
Ice machine bin control repair.
Ice-O-Matic
ice machines.
Ice-O-Matic machines get a visit that starts at the water inlet and the distribution tube, where scale often shows up first.
Ice-O-Matic ice machine repairMore Ice-O-Matic codes
Sensors and bin control on other makes
Modular ice machine
An ice-making head set on top of a separate storage bin or drink dispenser, cooled by air, water or a condenser on the roof, turning out hundreds of pounds of cubes a day.
Undercounter ice machine
A self-contained ice machine that makes and stores its own ice under a bar, a service counter or a kitchen island, from commercial units to clear-ice models in large homes.
Nugget ice machine
An ice machine that freezes a thin layer inside a chilled cylinder and pushes it out with an auger as soft, chewable nuggets, for clinics, offices, hotels and large homes.
In Ice-O-Matic's own words
Error 2 - POWER LED SLOW FLASH IN OFF STATE ONLY - Thermistor Failure.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Elevation Series CIM modular cubers. Codes show as red and yellow flash patterns on the POWER and CLEAN buttons of the push pad and the board. Boards before serial 2106 grouped some limits differently.
Ice-O-Matic Error 2 ice machine repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about Error 2.
Can I clear Error 2 myself?
Why does Error 2 only show when my Ice-O-Matic is off?
Can Error 2 cause slushy ice in an Ice-O-Matic?
Is Error 2 on an Ice-O-Matic a big repair?
Back to your everyday
Still showing Error 2?
A booking with a code goes further when it carries the light or code copied as it appeared, the model and serial off the data plate, and a word on whether cubes still fall into the bin. With those three in hand, our office can match the probable part to your machine the same afternoon.