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The drain line of an ice machine ending above a floor drain with a clear air gap.

Water, drain, air and power

Installation and setup
guides.

Running the water line and the filter, bringing the drain down to an air gap, leaving the clearance and cool air the condenser needs, and sizing a machine for the ice the day actually takes.

(844) 410-9163

Mon–Sat, 8am–8pm

  • Three guides
  • Read before you book
  • Says where to stop

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Installation and setup,
guide by guide.

Most of the ice machine calls that turn out to have nothing broken begin with the installation: a drain that runs uphill for a few inches, a cabinet built so tight the condenser breathes its own exhaust, or a machine that was simply too small for a busy Saturday. This section is for the weeks before a machine arrives and for the day someone asks whether the old spot was ever right.

All 18 guides
The lower back corner of a stainless modular ice machine on its bin in a restaurant back room, two clear drain tubes running down the wall and ending a short open drop above a square stainless floor sink set in red quarry tile, the ice machine legs and a water shutoff valve visible.
5-minute read

The Ice Machine Drain and Its Air Gap: Why the Line Never Touches the Sewer

What the Food Code forbids, how installers vent, slope and separate the drain lines, why a slow drain shows up as wet ice first, and what gets checked on a visit.

A cramped restaurant back room with a stainless air-cooled modular ice machine head on a tall bin, open space around the top and sides of the ice machine, a warm shaft of light from a small window falling on the wall beside it, cases of glassware stacked well clear.
5-minute read

Room Heat and Clearance Around an Ice Machine: Give It Air to Breathe

Where the heat from making ice goes, the room and water temperatures makers allow, clearance by kind of machine, and a thermometer test for a spot already in use.

A hotel bar service station before evening service with a stainless modular ice machine head on a large bin, the bin door lifted to show it full of clear cubes, a second smaller undercounter ice machine visible under the bar top beside it, empty glasses lined up.
5-minute read

How to Size an Ice Machine for Your Busiest Day: Output, Bin and Room

Read the hot-room output, count the ice a peak day really uses, let the bin carry the rush, and plan the water, drain and power that a bigger machine needs.

Water, drain, air and power.

The guides describe what the installer does and why, using the makers' installation manuals and the FDA Food Code. Where we quote a clearance, a temperature band, a slope or a vent height, it belongs to the named model, and your own manual and nameplate come first.

Three decisions shape a machine's working life. The drain decides whether water leaves cleanly across an air gap or backs up into the bin. The room and the space around the cabinet decide how much ice the machine can make on a hot afternoon. The size decides whether the bin is full when the rush starts or scraped bare before it ends.

None of this asks an owner to pick up a wrench. Water lines, drains, electrical circuits and remote condensers are fitted by the installer to the manual and to local code, and the guides help you check the result and ask the right questions.

Not sure where to start?

The short answerThe Ice Machine Drain and Its Air Gap: Why the Line Never Touches the Sewer

An ice machine drain air gap is the open space between the end of the machine's drain line and the rim of the floor sink it empties into.

The short answerRoom Heat and Clearance Around an Ice Machine: Give It Air to Breathe

Ice machine clearance is the open space the maker requires around the cabinet so the condenser can draw in room air and push hot air away.

The short answerHow to Size an Ice Machine for Your Busiest Day: Output, Bin and Room

How to size an ice machine comes down to three numbers: the ice your busiest day actually uses, how much of it is needed in the rush, and the machine's output in a hot room rather than a cool one.

When reading
is not enough.

If the checks in these guides did not settle it, the visit picks up from there, stop by stop.

What repairs cost
  1. 01One cycle, watched closely
  2. 02The cause, then the price
  3. 03Parts that travel with us
  4. 04A harvest before we go

The problems
these answer.

Each has a page of its own, with the causes in the order worth checking.

All 17 problems
Close view inside the open bin of a stainless ice machine, the pile of clear cubes sitting in a shallow pool of standing water at the bottom of the ice machine's bin, the drain fitting under the water, a white scoop resting on the bin ledge. Problem

Ice Machine Drain Backing Up Into the Bin

6 causes, cheapest first

 A stainless modular ice machine head sitting on a wide stainless ice bin in a tiled restaurant back room, a sheet of clear water spreading from under the ice machine bin across the red quarry tile toward a wall outlet with a plugged-in cord, a few loose ice cubes melting in the puddle. Clear the area first

Ice Machine Leaking Water Across the Floor or Under the Bin

6 causes, cheapest first

 A heavy rocks glass on a dark bar top filled with milky white cloudy cubes from an ice machine, a few white flakes floating in the water around them, and behind it slightly out of focus a stainless undercounter ice machine with its bin door open showing clumped cloudy ice. Problem

Cloudy, Soft or Wet Ice From an Ice Machine

6 causes, cheapest first

 A stainless modular ice machine head on a tall storage bin in a busy restaurant back room, the bin door propped open to show only a thin layer of clear cubes scattered across the bottom of the ice machine's bin, a fryer station glowing warm in soft focus nearby. Problem

Ice Machine Making Too Little Ice for the Rush

6 causes, cheapest first
A family filling glasses with nugget ice from an ice machine in a large home kitchen.
For the heart of your home.

Questions about
installation and setup.

Who installs a commercial ice machine?
The dealer's installer or a plumber and electrician, following the maker's installation manual and local code. Machines on R-290 must be installed by a suitably qualified person.
What does an ice machine need at the spot where it will stand?
A cold potable water line with a shutoff valve nearby, a floor sink for a vented drain with an air gap, a suitable electrical circuit, and a room within the maker's temperature limits with the required clearance.
Can an ice machine be installed outdoors or in a garage?
The manuals we checked say indoors only, in a controlled environment. A room colder or hotter than the maker's band makes the machine stop or slow down.
Should sanitizing happen before a new ice machine makes its first batch?
Yes. Manitowoc lists sanitizing the machine and bin after installation among its requirements; follow the start-up steps in your own model's manual before the ice is served.

The other
sections.

Split by what you are trying to find out rather than by which part of the appliance it concerns.

All guides
A few small, hollow cubes at the bottom of an ice machine bin.
What the ice is telling you

Common problems

A finger pressing a button on the control panel of an ice machine, the lights dark.
Safe checks at the bin and the valve

Troubleshooting

Removed plastic parts of an ice machine soaking in a sink of cleaning solution.
Habits that keep the bin full for years

Maintenance and prevention

A clean ice scoop hanging in its holder beside the bin of an ice machine.
Keeping the ice, the floor and the room safe

Ice hygiene, water and gas

A modular ice machine and a nugget ice machine side by side in one break room.
Cube or nugget, keep or retire

Choosing and comparing

Not sure which section?

Start from your question

The four questions most visits start with, each with the guide that answers it.

18 guidesWhere to start Where to start

Back to your everyday

Let’s get your ice machine working again.

Three short steps online, or one call. Tell us what you are seeing and pick a window that works.

Schedule a repair Call (844) 410-9163
(844) 410-9163 Schedule a repair