--- title: "U-Line nugget model all three lamps blinking (Er01)" description: "What Er01 means on U-Line nugget model all three lamps blinking (Er01)s, what to check before booking, and when it is not a failure at all." url: "https://icemakerrepair.center/error-codes/u-line-er01/" --- # U-Line nugget model all three lamps blinking (Er01) On U-Line's 15-inch nugget model, ICE, NO WATER and DRAIN blinking together is Er01: after 30 minutes of ice making, the evaporator is still at 32°F or above. ## What Er01 actually means. On U-Line's 15-inch nugget model, ICE, NO WATER and DRAIN blinking together is Er01: after 30 minutes of ice making, the evaporator is still at 32°F or above. The table points at a cooling problem such as a refrigerant leak, or a temperature sensor that is loose or misreading. U-Line ice maker display · also shown as ICE, NO WATER and DRAIN lamps blinking What to do when Er01 shows on the ice maker ### Kind of code Ice making and harvest The ice maker froze a batch and could not release it, or the harvest never started: the ejector arm or the twisting tray stalled, the mold heater did not loosen the cubes, or the arm that senses a full bin reported the wrong thing. Ice jammed against the arm and a bin pushed in crooked are cleared first; a motor module or a whole ice maker assembly comes after. ### Usually leads to Ice maker assembly replacement A new ice maker module fitted in the freezer compartment or the door compartment, after the water, the temperature and the bin sensor have been proved good, so the new part is not blamed for an old problem. ### Shows up as Nugget Ice Maker Not Making Nugget Ice A nugget ice maker not making ice runs and hums but drops nothing, makes wet slush instead of crisp pellets, or stops after a few batches with a light on. ### Make U-Line U-Line undercounter ice maker service, including cleaning, descaling and drain repair. ### Source U-Line User Guide & Service Manual, URNP115 nugget ice model (u-line.com PDF) U-Line URNP115 15-inch nugget ice model. ## Before you book, in this order. Each step comes from U-Line's own guidance for Er01 on its ice makers. Follow it to the end: the last card says whether this is a visit. 01 Check that the grille at the front of the unit is not blocked and that the room is within the unit's operating range. 02 Unplug the unit or switch off its breaker, wait a few minutes and power it back on. 03 If all three lamps blink again, book a visit; the refrigerant system or sensor needs testing. ### Still there? It usually turns into [ice maker assembly replacement](https://icemakerrepair.center/services/ice-maker-assembly-replacement/). Book with the code and the model number. ### What not to do Er01 is not a water supply or drain problem, even though the NO WATER and DRAIN lamps are blinking. All three lamps together are the code for an evaporator that is not getting cold. ## What you may notice with it. The ice maker problems Er01 tends to arrive with. Answer these at the ice maker before anyone is booked. [All problems](https://icemakerrepair.center/problems/) Before you call ### [Nugget Ice Maker Not Making Nugget Ice](https://icemakerrepair.center/problems/nugget-ice-maker-not-making-nugget-ice/) [All 6 causes, cheapest first](https://icemakerrepair.center/problems/nugget-ice-maker-not-making-nugget-ice/) It also comes with - [**Ice Maker Light Flashing**](https://icemakerrepair.center/problems/ice-maker-light-flashing/) - [**No Ice Coming From the Ice Maker**](https://icemakerrepair.center/problems/ice-maker-not-making-ice/) - [**Ice Maker Error Code**](https://icemakerrepair.center/problems/ice-maker-error-code/) Problem ### Nugget Ice Maker Not Making Nugget Ice 6 causes, cheapest first Where Er01 usually leads ## Ice maker assembly replacement. **Ice maker module, mold or twisting tray · moderate.** Book a visit [What the job involves](https://icemakerrepair.center/services/ice-maker-assembly-replacement/) ## U-Line ice makers. U-Line undercounter ice maker service, including cleaning, descaling and drain repair. [U-Line ice maker repair](https://icemakerrepair.center/brands/u-line/) More U-Line codes [dr](https://icemakerrepair.center/error-codes/u-line-dr/) [E1](https://icemakerrepair.center/error-codes/u-line-e1/) [E5](https://icemakerrepair.center/error-codes/u-line-e5/) [E11](https://icemakerrepair.center/error-codes/u-line-e11/) [E12](https://icemakerrepair.center/error-codes/u-line-e12/) [P1](https://icemakerrepair.center/error-codes/u-line-p1/) [Er15](https://icemakerrepair.center/error-codes/u-line-er15/) [Er16](https://icemakerrepair.center/error-codes/u-line-er16/) [Er03](https://icemakerrepair.center/error-codes/u-line-er03/) [Er25](https://icemakerrepair.center/error-codes/u-line-er25/) Ice making and harvest on other makes [Bertazzoni EO](https://icemakerrepair.center/error-codes/bertazzoni-eo/) [Café CI](https://icemakerrepair.center/error-codes/cafe-ci/) [GE Profile CI](https://icemakerrepair.center/error-codes/ge-profile-ci/) [GE CI](https://icemakerrepair.center/error-codes/ge-ci/) [Kenmore Er It](https://icemakerrepair.center/error-codes/kenmore-er-it/) [LG It](https://icemakerrepair.center/error-codes/lg-it/) [Monogram CI](https://icemakerrepair.center/error-codes/monogram-ci/) [Samsung 39E](https://icemakerrepair.center/error-codes/samsung-39e/) [All 19 codes of this kind](https://icemakerrepair.center/error-codes/#family-harvest) U-Line builds this ### Undercounter ice maker A built-in residential ice maker that lives under a kitchen, bar or basement counter, making clear cubes or chewable nugget ice on its own cooling system, with a water line in and a gravity drain or a small drain pump out. ## In U-Line's own words > passed during the ice making (Er01). [U-Line User Guide & Service Manual, URNP115 nugget ice model (u-line.com PDF)](https://www.u-line.com/userguide/pdf/index/sku/URNP115-IS01A/) [U-Line User Guide & Service Manual, URNP115 nugget ice model (u-line.com PDF)](https://www.u-line.com/userguide/pdf/index/sku/URNP115-IS01A/) [U-Line User Guide & Service Manual, URNP115 nugget ice model (u-line.com PDF)](https://www.u-line.com/userguide/pdf/index/sku/URNP115-IS01A/) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. U-Line URNP115 15-inch nugget ice model. ## U-Line Er01 ice maker 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. 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Check that the grille at the front of the unit is not blocked and that the room is within the unit's operating range. If it comes back, it needs a visit. ### Why are all the lamps blinking on my U-Line nugget ice maker? When ICE, NO WATER and DRAIN blink together, the unit is reporting Er01: its evaporator never got below freezing during ice making. ### Does Er01 on a U-Line nugget unit mean a refrigerant leak? It can. U-Line lists a refrigerant leak check alongside a check of the temperature sensor and how it is attached, so a technician confirms which one it is. ### Can I reset Er01 on my U-Line myself? You can cycle the power, but the table says to resupply power after the cooling problem is resolved. If it returns, the unit needs service. --- **[Read on the site: U-Line nugget model all three lamps blinking (Er01)](https://icemakerrepair.center/error-codes/u-line-er01/)** **[Book a visit with IceMakerRepair.center](https://icemakerrepair.center/schedule/)**