Daniel Mitchell Key Takeaways
- Er is a communication break between the control board and a sensor, and a two-minute power cut at the breaker is worth trying once.
- E1 and CP are the two urgent codes on this list — no cooling and a compressor fault — and both mean stop running the unit rather than reset and wait.
- E3 and E5 both point at the harvest heater circuit, so seeing them alternate over weeks names the part before a technician arrives.
- FL and DR sit at opposite ends of the water cycle; check the supply valve before assuming a part has failed on either one.
- NO-ICE has no part of its own — work backward through water, cooling and the harvest mechanism to find which link actually broke.
The Bottom Line
Most of these codes name one circuit exactly, so read the code before touching anything. CP and E1 are the two that mean stop and call rather than reset and wait, because both point at the sealed cooling system.
A built-in KitchenAid ice maker does not fail quietly. Instead of just slowing down, it posts a code on the small display inside the bin or on the dispenser panel, and most of those codes are specific enough to name the exact part involved. This guide covers the eleven codes that are not CL — the cleaning-cycle reminder already has its own guide — so if the display is showing anything else, from a single letter to a hyphenated word, it is here.
| Code | What the control detected | Urgency |
|---|---|---|
| Er | Communication failure | Book service |
| E1 | No cooling / LPIM motor fault | Urgent — stop and check |
| E2 | Damper cycle not completed | Days, but ice output falls |
| E3 | Heater timeout or thermistor | Book service |
| E4 | Ice bin full or not present | Check first, often not a fault |
| E5 | Timed ice making / heater bimetal | Book service |
| CP | Compressor fault | Urgent — stop and check |
| DR | Drain problem | Hours, water risk nearby |
| FL | Water fill timeout | Check supply first |
| HI | Interior temperature high | Hours, not days |
| NO-ICE | No ice production | Check the whole chain |
What Does Er Mean on a KitchenAid Ice Maker?
Er means the ice maker's control board has lost communication with a sensor or with the main appliance board. It is not naming a single failed part — it is naming a break in the conversation between two parts, which is why a code reset sometimes clears it and sometimes does not. A power cycle at the breaker for two minutes is worth trying once, because a brief static discharge or a voltage dip can latch this condition without damaging anything.
If Er returns immediately after the reset, the fault sits in a connector or a board rather than in whatever the sensor is measuring, and it belongs with a technician rather than with more resets. Our KitchenAid ice maker repair service handles the wiring harness and board diagnostics together, since one loose connector often explains several intermittent codes at once.
E1 Through E5: The Numbered Codes
The five numbered codes each name a different stage of making ice, and reading them in order tells the story of the cycle itself. E1 is the most serious of the group: no cooling detected, or a fault in the low-profile ice maker's own motor. An ice maker that cannot cool cannot make ice safely, and running it in that state stresses a compressor that may already be struggling.
- E2 — damper cycle not completed. The door that releases cubes into the bin did not finish its swing, often because ice has jammed it partway.
- E3 — heater timeout or thermistor. The small heater that loosens cubes from the mold ran longer than it should, or its temperature sensor disagrees with reality.
- E4 — ice bin full or not present. Check the obvious cause first: a bin that is genuinely full, or one that was not pushed back into place after cleaning.
- E5 — timed ice making or heater bimetal. A harvest cycle ran past its expected window, which points at the same heater circuit as E3 from a different angle.
- Write down which number appears before resetting anything — E3 and E5 look similar in symptom but point at the same heater from different angles, and the exact digit matters.
- Check the bin position for E4 before assuming a sensor fault; a bin nudged slightly out of its slot reads as "not present" to the control.
E3 and E5 both implicate the harvest heater, so a unit that alternates between the two over several weeks is telling you where to look before you spend money guessing elsewhere.
Is CP a Code You Can Ignore?
No. CP is a compressor fault, and the compressor is the one part in this appliance that cannot be worked around. When CP is showing, the sealed cooling system has stopped responding correctly, and continuing to run the unit does not make ice — it just keeps stressing a compressor that has already flagged itself as failing.
Unplug the unit rather than leaving it running and hoping. A diagnostic visit starting from $95 will confirm whether the fault is the compressor itself, the start relay that feeds it, or a control board misreading a healthy compressor as failed — three different repairs that look identical from the front of the appliance. Our full write-up of this exact code sits at CP, compressor fault if you want the reference page alongside this guide.
What Do FL and DR Mean?
FL and DR sit at opposite ends of the same water cycle. FL is a water fill timeout: the machine asked for water and it did not arrive inside the expected window, which almost always traces back to the supply line rather than to the ice maker itself. Check the shutoff valve behind or under the unit before assuming a part has failed — a valve nudged closed during other kitchen work is the most common cause by a wide margin.
DR is a drain problem, and it deserves faster attention than FL because a stuck drain sitting near a bin full of electronics is a water-damage risk, not just an ice-production one. A DR code paired with water pooling under the unit is worth shutting the water supply off at the valve until a technician looks at it.
- Confirm the water valve is fully open before assuming the inlet valve has failed.
- Check the supply line for a kink where it exits the wall or turns behind the cabinet.
- Look under the unit for standing water if DR is showing, and stop using it if you find any.
- Do not keep resetting FL repeatedly without checking the valve — repeated resets on a closed supply teach nothing new.
- Shut the water off at the valve if DR appears alongside any visible pooling, rather than leaving the supply running while you investigate.
- Note how long the fault has been showing — a DR that appeared today is a different urgency than one that has been ignored for a week.
Why Would It Show NO-ICE With No Other Code?
NO-ICE means the control has given up waiting for ice to appear and has nothing more specific to blame. It is the appliance's way of saying "something in this chain failed" without being able to point at which link. That makes it the hardest code on this list to act on alone, and the right response is to work backward through the chain rather than to guess at a part.
Start with water: is FL also showing, or has it shown recently? Then check cooling: does the compressor run, and does the interior feel cold to the touch? Then check the harvest mechanism: does the damper move when you can see it? A NO-ICE code that shows up alongside E1 or CP has already told you where to look; a NO-ICE code on its own with everything else looking normal is the one that most often turns out to be the water supply.
When KitchenAid Ice Maker Error Codes Need a Technician
Water supply checks, a bin reset and a look under the unit for leaks are fair homeowner territory. The compressor circuit, the harvest heater and the control board sit behind panels and carry both refrigerant and line voltage, and that is where the job stops being a homeowner one. Our KitchenAid ice maker repair service covers the whole chain from the water valve to the compressor.
If the code you are chasing is CL rather than any of these eleven, our separate guide to the KitchenAid ice maker cleaning cycle covers that one specifically — it is a maintenance reminder, not a fault. A diagnostic visit for anything on this page starts from $95, the final price is confirmed after the on-site diagnosis, and a written estimate comes before any work begins. General appliance troubleshooting, including how our appliance diagnostics visit works across a whole kitchen rather than a single unit, is covered separately if you are seeing faults on more than just the ice maker. Book a visit or send us the code you are seeing and we will tell you what it points at.