

Ice-O-Matic Error 4: double red and yellow flashes, sump did not purge
After harvest, an Elevation CIM purges the old sump water through its purge valve to the drain.
Mon–Sat, 8am–8pm
- Drain and pump
- Ice machine drain and pump repair
- Source: Ice-O-Matic
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What Error 4
actually means.
After harvest, an Elevation CIM purges the old sump water through its purge valve to the drain. If the water level does not fall within two minutes, the board shows Error 4. A purge valve clogged with scale, a blocked drain, or a drain line with no vent are the usual reasons. Ice-O-Matic does not recommend a drain pump for CIM heads.
Ice-O-Matic ice machine display
What to do when Error 4 shows on the ice machineKind of codeDrain and pump
Water that should have left the machine is still inside it. A gravity drain clogged with slime or scale, a line run too flat to keep up during a harvest, a drain pump whose float sticks or whose motor has stopped, or an air gap blocked at the floor sink all back water into the bin or across the floor. Checking that the drain outlet in view runs clear is a fair first step; the pump and the line inside the cabinet are a visit.
Usually leads toIce machine drain and pump repair
Gravity drains, air gaps, drain pumps and their lines, cleared or replaced when meltwater backs up into the bin or reaches the floor.
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 4 on its ice machines. Follow it to the end: the last card says whether this is a visit.
Check the purge drain line behind the head for kinks and see whether the floor drain is backing up.
Make sure the drain lines are vented and run separately, as Ice-O-Matic asks.
If the sump stays full, book a visit to clean or replace the purge valve.
Still there?
It usually turns into ice machine drain and pump repair. Book with the code and the model number.
What not to do
Error 4 is not a water supply problem; that is Error 3. It does not mean the bin drain is blocked, although a shared, blocked floor drain can cause both.
What you may
notice with it.
The ice machine problems Error 4 tends to arrive with. Answer these at the ice machine before anyone is booked.
All problemsWhere Error 4 usually leads
Ice machine drain and pump 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
Drain and pump 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
DOUBLE RED AND DOUBLE YELLOW QUICK FLASH – Unit has experienced a MAX Purge (2 min.)
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 4 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 4.
Can I clear Error 4 myself?
Can I put a drain pump on my Ice-O-Matic CIM to fix Error 4?
Why is my Ice-O-Matic ice cloudy along with Error 4?
Is Error 4 urgent on an Ice-O-Matic?
Back to your everyday
Still showing Error 4?
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.