--- title: "First Ice After Installation: How Long, What to Throw Away, What to Check" description: "Why a door or freezer ice maker needs most of a day, the batches and glassfuls that go down the sink, the sounds of a new unit and the setup details that keep…" url: "https://icemakerrepair.center/guides/first-ice-after-installation/" date_modified: "2026-09-26" --- Installation and setup # First Ice After Installation: How Long, What to Throw Away, What to Check First ice after installation takes 12 to 24 hours on a door or freezer ice maker, according to GE, because the mold must reach about 15°F before it fills. A countertop nugget unit starts within minutes. The first batches, and U-Line's first two or three hours on its nugget unit, are thrown away to clear the new line. By [IceMakerRepair.center technical team](https://icemakerrepair.center/authors/technical-team/) Published September 26, 2026 ## At a glance. The installers leave, the unit hums, and the bin stays empty. On a door or freezer ice maker that silence is expected for most of a day; on a countertop nugget unit it would not be. Knowing which clock you are on saves a needless call. Read the whole guide ### Door or freezer ice maker 12 to 24 hours to the first cubes GE's figure for a newly installed unit. ### When it starts filling Once the mold reaches 15°F GE's trigger for the first fill. ### Countertop nugget unit Ice within minutes GE's Opal starts producing shortly after it is switched on, up to about 24 pounds a day. ### First ice Thrown away GE: the first few batches; U-Line: the first two or three hours. In this guide 1. Why the first cubes take most of a day 2. Why the first batches go in the sink 3. Sounds that are normal in the first days 4. Setup details that stop the first ice 5. Step by step 6. Questions ## Why the first cubes take most of a day A new unit arrives at room temperature, and so does its ice maker. The freezer has to pull itself down first, and the mold in a door or freezer ice maker will not accept water until its own sensor reads cold enough. GE's owner's manual gives 15°F as the point where the ice maker fills and says a newly installed unit may take 12 to 24 hours to begin making ice. A door ice maker sits in its own insulated compartment and waits for cold air to reach it from the freezer before its mold gets there. Once it starts, output is modest. GE's manual describes a freezer ice maker that makes seven cubes a cycle, roughly 100 to 130 cubes in 24 hours depending on the freezer temperature, the room and how often the doors are opened. Filling an empty bin can take a couple of days, and that is normal. *When to expect the first ice, by type* | Type | First ice | What sets the pace | | --- | --- | --- | | Freezer ice maker | Within 12 to 24 hours | The freezer cooling down and the mold reaching 15°F | | Door ice maker | Within the same 12 to 24 hours | Cold air reaching the separate door compartment | | Undercounter nugget unit | Within its first hours | Its own refrigeration system; the first two or three hours of ice are discarded | | Countertop nugget unit | Within minutes | Water in the reservoir and a level surface | Source: [GE Appliances — Side by Side Owner's Manual and Installation Instructions (49-60198)](https://www.geappliances.com/content/older-pdfs/49-60198.PDF) — A new unit may take 12 to 24 hours to begin making ice; the ice maker fills when it cools to 15°F; seven cubes a cycle, about 100 to 130 in 24 hours; throw away the first few batches; discard the first six glassfuls of water; buzzing when it fills; repeated cycles on low pressure; keep the switch off until water is connected; nothing may block the feeler arm; the dispenser and ice maker will not operate without the filter or bypass plug; RO plus the built-in filter can make hollow cubes ## Why the first batches go in the sink A new line carries whatever the installation left in it: shavings from the valve, flux, sediment stirred up in the pipe and air. GE's manual tells owners to throw away the first few batches of ice to allow the water line to clear, and U-Line's nugget ice maker guide says to discard the ice made in the first two or three hours so any dirt or scale loosened from the line does not end up in a glass. The dispenser needs the same treatment. GE asks for the first six glassfuls of water to be poured away to flush impurities from the line, which also pushes air out of a new filter and gives the ice maker a steadier fill. ### A countertop nugget unit's first rinse A countertop nugget ice maker skips the plumbing but not the rinse. GE's Opal manual asks for the machine to be rinsed with clean water for five minutes before first use, placed upright on a flat, level surface with its drip tray fitted, and filled with water that is safe to drink. It then begins producing ice within minutes and makes up to about 24 pounds a day. Source: [GE Appliances — Side by Side Owner's Manual and Installation Instructions (49-60198)](https://www.geappliances.com/content/older-pdfs/49-60198.PDF) — A new unit may take 12 to 24 hours to begin making ice; the ice maker fills when it cools to 15°F; seven cubes a cycle, about 100 to 130 in 24 hours; throw away the first few batches; discard the first six glassfuls of water; buzzing when it fills; repeated cycles on low pressure; keep the switch off until water is connected; nothing may block the feeler arm; the dispenser and ice maker will not operate without the filter or bypass plug; RO plus the built-in filter can make hollow cubes; [U-Line — User Guide and Service Manual, UHNB115 nugget ice maker](https://www.u-line.com/userguide/pdf/index/sku/UHNB115-SS01A/) — Discard the ice produced in the first two or three hours; damage from ambient temperatures of 40°F or below is not covered; [GE Appliances — Opal Nugget Ice Maker Owner's Manual (49-1000418)](https://images.salsify.com/image/upload/s--1jfWxVD5--/sucedrcowdih1xgqteu1.pdf) — Rinse with clean water for five minutes before first use; place upright on a flat, level surface; fill with potable water; begins producing ice within minutes; up to 24 pounds a day Close on the first small batch of ice cubes dropping into an empty bin in a freezer. ## Sounds that are normal in the first days Owners who have never had a plumbed ice maker are often startled by it. GE's manual mentions a buzzing sound each time the ice maker fills, which is the inlet valve opening. The harvest that follows is a clatter of cubes dropping into the bin, and at night in a quiet kitchen it can sound like something breaking. In homes with lower water pressure, GE notes you may hear the ice maker cycle several times to make a single batch. That is not a problem in itself, but it is a clue if the cubes also come out small. - A short buzz or hum as the inlet valve lets water in. - A trickle as the mold fills. - A clunk and rattle as cubes drop into the bin. - Gurgling on an undercounter unit as meltwater runs to its drain. Source: [GE Appliances — Side by Side Owner's Manual and Installation Instructions (49-60198)](https://www.geappliances.com/content/older-pdfs/49-60198.PDF) — A new unit may take 12 to 24 hours to begin making ice; the ice maker fills when it cools to 15°F; seven cubes a cycle, about 100 to 130 in 24 hours; throw away the first few batches; discard the first six glassfuls of water; buzzing when it fills; repeated cycles on low pressure; keep the switch off until water is connected; nothing may block the feeler arm; the dispenser and ice maker will not operate without the filter or bypass plug; RO plus the built-in filter can make hollow cubes ## Setup details that stop the first ice When a day has passed and the bin is still empty, the reason is more often something about the setup than a defective part. GE asks for the ice maker switch to stay off until the water is connected, and it is easy for it to stay off afterward. The feeler arm on many freezer ice makers must be down, with nothing in the bin pushing it up; GE's manual asks owners to make sure nothing interferes with the sweep of that arm. On the water side, check that the supply valve is fully open, that the line did not kink when the unit was pushed back, and that a new filter is seated all the way. - The ice maker switch or Ice On setting. - The feeler arm or bin sensor, clear of obstructions. - The supply valve fully open. - No kink in the line behind the unit. - The filter or bypass plug fully seated. ### The filter, and the plug that replaces it GE's manual says the dispenser and the ice maker will not operate without either the filter or its bypass plug in place. If the installers removed the filter for shipping, or the house is on reverse osmosis, one or the other has to be in place, and GE warns that running both RO and the built-in filter together can produce hollow cubes. ### Where an undercounter unit was put Built-in units care about the room they are in. U-Line warns that damage from ambient temperatures of 40°F or below is not covered, so an undercounter ice maker in an unheated bar or basement may struggle in its first winter. Source: [GE Appliances — Side by Side Owner's Manual and Installation Instructions (49-60198)](https://www.geappliances.com/content/older-pdfs/49-60198.PDF) — A new unit may take 12 to 24 hours to begin making ice; the ice maker fills when it cools to 15°F; seven cubes a cycle, about 100 to 130 in 24 hours; throw away the first few batches; discard the first six glassfuls of water; buzzing when it fills; repeated cycles on low pressure; keep the switch off until water is connected; nothing may block the feeler arm; the dispenser and ice maker will not operate without the filter or bypass plug; RO plus the built-in filter can make hollow cubes; [U-Line — User Guide and Service Manual, UHNB115 nugget ice maker](https://www.u-line.com/userguide/pdf/index/sku/UHNB115-SS01A/) — Discard the ice produced in the first two or three hours; damage from ambient temperatures of 40°F or below is not covered ## Where to stop If there is still no ice after 24 hours with the switch on, the valve open and the freezer cold, or if water drips at the back or pools under the unit after installation, close the supply valve and book a check. Loosening fittings at the inlet valve or pulling a built-in unit out of its opening are jobs for the installer or a technician. Written by [IceMakerRepair.center technical team](https://icemakerrepair.center/authors/technical-team/). The technicians sent out when an ice maker visit is booked on this site. They write from what they find at the supply valve, along the fill tube, in the ice bin and at the drain, and they check it against the maker's own manuals wherever one is published. Sources: [GE Appliances — Side by Side Owner's Manual and Installation Instructions (49-60198)](https://www.geappliances.com/content/older-pdfs/49-60198.PDF) · [U-Line — User Guide and Service Manual, UHNB115 nugget ice maker](https://www.u-line.com/userguide/pdf/index/sku/UHNB115-SS01A/) · [GE Appliances — Opal Nugget Ice Maker Owner's Manual (49-1000418)](https://images.salsify.com/image/upload/s--1jfWxVD5--/sucedrcowdih1xgqteu1.pdf) ## Step by step. Five steps, in the order worth doing them. 01 ### Switch the ice maker on Once the water line is connected and checked for drips, turn the ice maker on at its switch or panel. 02 ### Flush the dispenser Pour away six glassfuls of water, or run the dispenser until it flows steadily without spitting air. 03 ### Wait a full day Give a door or freezer ice maker up to 24 hours to make its first cubes before checking anything else. 04 ### Throw out the first batches Empty the first few batches, or the first two or three hours on an undercounter nugget unit, into the sink. 05 ### Check the setup if nothing comes Look at the switch, the feeler arm, the valve, the line and the filter before booking a visit. For the heart of your home. ## Questions owners ask. ### The ice maker was installed this morning. Should I call if there's no ice by tonight? Not yet. GE gives 12 to 24 hours for a new unit to begin making ice, so wait until the same time tomorrow before looking for a problem. ### Do I really have to throw away the first ice? Yes. Both GE and U-Line tell owners to discard the earliest ice so anything loosened in the new line does not end up in a drink. ### The first cubes are small and cloudy. Is that a problem? Usually not. Air in a new line and filter makes early cubes cloudy and uneven. If they are still small or hollow after the first few days, low water pressure is worth checking. ### Why does the bin take days to fill completely? Because a freezer ice maker makes a few cubes at a time; GE's manual puts it at roughly 100 to 130 cubes a day. A full bin in the first day would be unusual. ## The problems behind it. Each has a page of its own: what it usually means and the causes in the order worth checking. [All 17 problems](https://icemakerrepair.center/problems/) Problem ### No Ice Coming From the Ice Maker 7 causes, cheapest first Problem ### Ice Maker Making Small or Hollow Cubes 6 causes, cheapest first Problem ### Ice Maker Making Noise 6 causes, cheapest first ## When it needs a technician. The repairs on the right are where this guide ends when the checks do not settle it. ### Diagnostic visit A visit that traces the water from the supply valve to the bin and back out through the drain, and names the one part that stopped the ice before anything is ordered. ### Ice maker water inlet valve repair The electric valve that lets water into the ice maker, tested and replaced when it will not open, opens only partway, or keeps dripping after it should have closed. ### Water filter and supply line service The filter, the shutoff valve and the thin line that bring water to the ice maker, checked for flow, leaks and age, with a worn line or saddle valve replaced and a new filter seated properly. ## More in installation and setup. Running a water line to an ice maker, what to expect from the first batches of ice after installation, and how to set up an ice maker in a home that sits empty for weeks at a time. [The whole section](https://icemakerrepair.center/guides/installation-and-setup/) Water lines, first ice and a unit left alone ### The Water Line Behind an Ice Maker: Tubing, Valve and Pressure Copper, braided stainless and the plastic tubing makers warn about, saddle valves and local code, the pressure range, slack behind the unit and a five-minute check of a line you inherited. Water lines, first ice and a unit left alone ### An Ice Maker in a Vacation Home: Closing Up and Opening Again Switching off and closing the valve for a short absence, draining before a winter without heat, the undercounter and countertop shutdowns, reopening in order and leak sensors between visits. Guides ### All 18 guides Six sections, by what you are trying to find out. --- **[Read on the site: First Ice After Installation: How Long, What to Throw Away, What to Check](https://icemakerrepair.center/guides/first-ice-after-installation/)** **[Book a visit with IceMakerRepair.center](https://icemakerrepair.center/schedule/)**