Can you leave a countertop ice maker on all the time?

Yes, you can leave a countertop nugget ice maker on all the time. GE and Frigidaire both design their machines to keep making ice until the bin is full or the water runs out, then pause on their own.

Running it nonstop has costs, though. The bin isn't a freezer, so ice melts and the machine keeps topping it up. That means more power use, more wear on the pump and compressor, and water that sits in the machine for days. Here is what the manuals say, and when switching it off makes sense.

What the manufacturers say

Sources: Opal 2.0 manual, Opal Mini manual and the Frigidaire EFIC256 user guide, which also covers the EFIC255, EFIC202 and EFIC165.

Frigidaire countertop models

Frigidaire countertop ice makers are made under license by Curtis International. The EFIC256 guide is clear that the machine can run unattended: it stops when the "Ice Full" light comes on and stops again with "Add Water" when the pump can't draw water. Press the ICE button twice to restart after you refill.

The same guide sets a daily habit. It tells you to change the reservoir water every 24 hours "to ensure a reasonable hygiene level," and to drain and dry the reservoir when the unit isn't in use. It recommends a bleach cleaning cycle and a monthly white vinegar soak of more than 12 hours to remove mineral deposits. So leaving a Frigidaire on is fine, but leaving the same water in it for a week isn't what Curtis intends.

Two more points from the guide. Pressing the Power button off doesn't disconnect it from power, so unplug it before cleaning. And give it at least 6 inches of space at the back and sides. Owners of the Costco Gallery version report mixed results on meltwater. One measured 13 ounces drained after 30 minutes with no recirculation. Check how your model handles melt before you leave it running for days. Frigidaire also sells bullet-ice countertop models. The same logic applies, but follow that model's manual. Our Frigidaire Gallery notes and Frigidaire warranty guide cover the rest.

GE Profile Opal

The Opal recirculates meltwater back into its reservoir and turns it into ice again. That is efficient, and GE's Opal 2.0 manual flags the trade-off: "Continuous recirculation of meltwater may affect taste." GE recommends draining the Opal when you aren't using much ice, when you turn it off for more than a few days, and when you move it. The Opal Mini manual adds: "For best results, drain your Opal periodically."

On the original round-button Opal, GE's status light guide says a solid white light means the bin is full and the Opal "is idle (in Energy Saver Mode)." GE's newer manuals don't use that term, but they describe the same stop-when-full behavior.

Power use

Neither GE nor Frigidaire publishes a daily kWh figure in the manuals we read. The Frigidaire EFIC256 is rated at 185 W while running. If it ran flat out for 24 hours, that would be about 4.4 kWh. Treat that as a ceiling. The machine pauses when the bin fills. How often it restarts depends on how fast the bin melts, which depends on your room temperature.

You'll see daily kWh and yearly cost figures on review sites. We couldn't trace them to a manufacturer, so treat them as estimates. The easiest way to cut use is to run it only when you want ice, or to schedule it off.

Wear and noise

A nugget maker's auger, pump and compressor run every time it tops up the bin. GE's manuals list normal sounds: a whir from the fan, a buzz as the pump fills, rattles and gurgles from refrigerant, a compressor hum and clicks as ice drops. They also describe a squeak when ice builds up, followed by an automatic defrost that can take 30 to 45 minutes. GE says "more frequent squeaking usually requires white vinegar cleaning to remove internal mineral scale buildup."

Owner reports show wide lifespans. Some Opal owners report 3.5 years before the pump gave out. Others report failures within a year. Frigidaire owners describe two units in a row dying around 11 months. A NewAir owner says theirs has run nearly continuously since 2023. We don't have data showing that switching off at night extends life. Owners who report long lifespans tend to mention regular descaling and good airflow. See our reliability section for the full picture.

Scheduling it off overnight

Many owners turn their machine off at night for the noise. Some models make this easy:

• Opal 2.0 Ultra: GE's launch release says you can schedule ice production through the SmartHQ app.
• Opal Mini: the manual lists "ice scheduling" among the SmartHQ features.
• Frigidaire EFIC256: no app. Press ICE to stop and start it.

Some owners use a smart plug instead. The manuals don't say whether a unit resumes making ice after its power is cut and restored, so test yours before you rely on it.

When to turn it off

• You're away for more than a few days. Drain it and let it dry.
• You're barely using the ice. GE says to drain it so recirculated water doesn't affect taste.
• It's time to clean. Unplug it first, per both GE and Frigidaire.
• It starts grinding or squealing beyond the normal sounds. Descale it, and call support if it continues.
• It leaks.
• The room is hotter than 90°F, the top of the operating range in both manuals.
• The vents are blocked. GE asks for 3 to 4 inches of clearance depending on model; Frigidaire asks for 6.

For cleaning routines, see our care guide and the Opal cleaning steps. Nugget ice also doesn't keep well in a freezer; owners say it clumps and loses its chew, which is one reason people keep the machine running.