

Manitowoc E19: ice thickness probe signal lost
The Indigo ice thickness probe tells the board when the sheet of ice is thick enough to harvest.
Mon–Sat, 8am–8pm
- Sensors and bin control
- Ice machine bin control repair
- Source: Manitowoc
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What E19
actually means.
The Indigo ice thickness probe tells the board when the sheet of ice is thick enough to harvest. If its signal drops outside the expected band, because the probe is unplugged, scaled over or damaged, the board logs E19. With five good cycles of history it keeps the head running in safe mode for up to 72 hours.
Manitowoc ice machine display
What to do when E19 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.
MakeManitowoc
With a Manitowoc ice machine, the technician notes what the controls report and checks the bin control before opening the cycle for testing.
SourceManitowoc Indigo Series air, water and remote condenser ice machines technician's handbook (Part Number 000014794)
Indigo heads; on G-board firmware 4.017 and later it is Event Log only, and the machine relies on safe mode.
Before you book,
in this order.
Each step comes from Manitowoc's own guidance for E19 on its ice machines. Follow it to the end: the last card says whether this is a visit.
Check the display for a safe mode alert; the head may still be making ice on timed cycles.
Plan a de-scale and sanitize, since scale on the probe is a common reason it misreads.
Book a visit before the 72 hours run out, so the probe can be cleaned, adjusted or replaced.
Still there?
It usually turns into ice machine bin control repair. Book with the code and the model number.
What not to do
E19 is not a water level problem, which the board logs as E20. It also does not mean the freeze is slow; a probe that reads but calls too late produces E01.
What you may
notice with it.
The ice machine problems E19 tends to arrive with. Answer these at the ice machine before anyone is booked.
All problemsWhere E19 usually leads
Ice machine bin control repair.
Manitowoc
ice machines.
With a Manitowoc ice machine, the technician notes what the controls report and checks the bin control before opening the cycle for testing.
Manitowoc ice machine repairMore Manitowoc codes
All 15 Manitowoc codesSensors 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 Manitowoc's own words
E19 Ice Thickness Probe Fault
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Indigo heads; on G-board firmware 4.017 and later it is Event Log only, and the machine relies on safe mode.
Manitowoc E19 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 E19.
Can I clear E19 myself?
My Manitowoc still makes ice after E19. Is it fixed?
Can dirty water cause E19 on a Manitowoc?
Why are my Manitowoc cubes thin after an E19 entry?
Back to your everyday
Still showing E19?
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.