How to Drain an Ice Maker Completely

The first time I tipped my GE Profile Opal to store it, I thought I was done after the side tank stopped dripping. Two weeks later I opened the ice bin and got hit with a musty, sour smell. There was still water trapped in the pump, and it had gone stagnant in the dark.

That taught me something. Learning how to drain an ice maker is not really about the plug. It is about the water you cannot see: the puddle sitting in the reservoir base, the ounce or two hiding in the pump housing, the film clinging to the sensor.

I have since drained a dozen units, from bullet portables to nugget machines, and the process is nearly identical once you know where the water hides. Here is exactly how I do it.

Why a half-drained machine causes so many problems

A countertop ice maker holds more water than people expect. A Frigidaire EFIC237 has a reservoir around 30 to 35 ounces. The Opal side tank plus internal plumbing holds even more. Leave that behind and you are storing a small, warm, dark pond.

Standing water is where biofilm starts. Within a week or two you get that pink slime along the waterline, and give it a month and you can get black mold in the corners you never look at. If you are fighting either of those already, my walkthroughs on clearing pink slime from an ice maker and removing black mold safely will help, but draining fully is how you avoid the whole mess.

Water left in the pump is also the top reason a machine smells fine on the counter but produces sour ice the next season. The reservoir looks empty. The pump does not.

What you need before you start

Nothing exotic. I keep this short stack of things next to the sink every time.

• A sink, tub, or a wide shallow pan the machine fits over
• A dry microfiber cloth or two
• A turkey baster or small cup for scooping the reservoir
• Paper towels for the pump area
• Your unit’s manual, or at least a photo of its underside

That last one matters more than it sounds. Drain locations vary, and knowing yours before you flip the machine saves you from holding a heavy unit upside down while you hunt for a plug.

Step by step: draining the machine completely

1. Power down and pull the plug. Turn the unit off, unplug it, and leave the lid open so the interior can start to air out.
2. Scoop the ice bin empty. Any leftover cubes or nuggets are just water waiting to melt back into the reservoir. Toss them.
3. Empty the reservoir the easy way first. Many machines have a small drain cap you can open with the unit still upright. On a bullet portable it is usually a rubber or twist plug low on the back or side. On the Opal, drain the side tank first.
4. Position the unit over your sink. Slide it to the edge so the drain point hangs over the basin. Have a towel down; the first pour is faster than you expect.
5. Open the underside plug. Frigidaire, Igloo, and most Newair and Euhomy bullet units put a threaded or push plug on the bottom. Frigidaire’s is a small cap you turn a quarter and pull. Igloo’s is often a rubber grommet you pop out with a fingernail.
6. Tilt to clear the reservoir base. Water pools in the low corner of the reservoir even after the plug drains. Tip the machine 30 to 45 degrees toward the drain and hold for a slow ten count. You will hear a second little rush.
7. Rock it to empty the pump. This is the step everyone skips. Gently rock the unit front to back and side to side while it is tilted. The pump housing traps an ounce or two that only a change of angle releases.
8. Reseat the plug and dry the interior. Wipe the reservoir, the bin, and around the water sensor with your cloth. Leave the lid open for a few hours before you put the plug back and box it up.

Where the drain plug lives on common models

Every brand hides it somewhere slightly different. Here is what I have found across the units I have handled.

If you cannot spot yours, look for a small circle of a different color or texture on the underside. Manufacturers rarely label it. On a couple of Silonn and Euhomy units I have seen the plug tucked right at the back edge where it is easy to miss until you run a finger along the seam.

The mistake that ruins the whole effort

The single most common error I see is draining only the visible reservoir and calling it done. People open the plug, watch a stream come out, wait until it slows to a drip, and stop. The pump still holds water.

If you did not hear a second rush after tilting, you did not fully drain it.

The fix is the rock and tilt in steps six and seven. It feels fussy, but that trapped ounce is exactly what goes stagnant and breeds the smell. I learned this the hard way with that first Opal, and I have not skipped it since.

The other frequent slip is boxing the unit up wet the same day. Even a perfectly drained machine has a damp film on every surface. Give it several hours open, or overnight, before it goes into storage. If seasonal storage is your goal, my notes on putting an ice maker away for the season cover the humidity and packing details.

Draining before you descale, not just before storage

Storage is not the only reason to empty a machine. You also want it fully drained before a descale so your cleaning solution is not diluted by leftover water.

When I run a vinegar or citric acid cycle, I drain first, then add the solution to a known-empty reservoir. That way the mix is the strength I intended. If I left 30 ounces of old water in there, a cup of vinegar barely does anything. The full method lives in the step-by-step guide to cleaning an ice maker, and the acid-specific version is in descaling with vinegar.

Draining also matters for water quality between cleanings. If your tap runs hard, mineral-heavy water leaves scale that traps that residue. The USGS overview of water hardness is a quick way to check what your region deals with, and it explains why some of us empty and rinse more often than others.

How to confirm it is actually empty

I run three quick checks before I trust that a machine is dry.

• Tilt it one more time over the sink. If even a teaspoon comes out, keep tilting.
• Wipe the reservoir base with a dry paper towel. It should come out damp at most, never wet.
• Listen. Give the unit a gentle shake near your ear. Sloshing means water is still trapped.

Those three take under a minute and they are the difference between a machine that smells clean next season and one that greets you with sour ice. When all three pass, reseat the plug and you are done.

Where this leaves you

Draining an ice maker completely is a five minute job once you stop trusting the plug alone. Open the drain, tilt toward the low corner, rock the pump, dry the inside, and confirm with a shake. That sequence gets the water you can see and the water you cannot.

Get in the habit of draining before every descale and every stretch of storage, and most of the smell and slime problems people fight simply never start. The last ounce is the one that matters, so chase it every time.