Ice Machine Service Support

Manitowoc Ice Machine Parts for Indigo February 25 2015, 1 Comment

Ice Maker Parts Shop offers a full selection of the most common parts and accessories for today's current production Manitowoc ice machines and previous generation models.  We focus on the core components that can be easily changed by just about anyone and offer guidance on diagnostics and parts research.  The focus of this article is to discuss the main and most common parts of the latest generation Manitowoc, the Indigo series.

Our most common Indigo ice machine part is the ice thickness control, which utilizes a new technology.  Unlike previous generations, the Indigo ice thickness probe uses acoustic technology, as opposed to continuity through a metal finger.  This new acoustic technology is reliable and less susceptible to failing due to scale build-up on parts.  The replacement ice thickness control for Indigo ice machines is a Manitowoc part number 000008660, which we keep in stock, ready to ship same day, with free shipping!


Indigo Control Board Navigation January 21 2015, 1 Comment

One of the coolest new features of the Manitowoc Indigo ice machine is it’s control board or display board.  Within that little LCD screen is a plethora of information, just at your finger tips.  The problem, is that you need to know how to find it.  This guide will show you how to navigate the some of the menu’s inside the Indigo display.

To start, let’s look at what the actual control functions are on the board.  There are a number of buttons that do different things, including power and clean, besides just navigation.  To access some of these buttons, you may need to remove the front panel, unless the board with the buttons has been left open for access.


Manitowoc S Series Ice Machine Safety Timers January 15 2015, 4 Comments

S Series Safety LimitsManitowoc S Series ice machines are considered the best commercial ice machines produced.  They had just the right mix of new technology and old technology that made a reliable, long lasting piece of equipment.  The longevity of the S Series, like model SY0454A, SD0302A, SY0304A, and SY0604A, is due to the control boards ability to protect expensive components with safety timers.

Safety timers are used to shut off the ice machine, in case an ice making cycle is out of spec.  This provides protection to a compressor, that may be short cycling, or loss of water through inlet valves.  Below are the 3 main safety timers, which are indicated by flashing safety limit lights on the control board.


Manitowoc Control Board Lights November 25 2014, 23 Comments

The lights on the Manitowoc control board can tell you a lot about what's going on with your ice machine.  Depending on which lights are lit or which lights are out can help you diagnose the problematic ice maker.  Although there are a number of different control boards, most function similarly, so I'll be discussing only the basics in this article.

Clean Light

The clean light should be lit anytime the ice machine toggle switch has been moved to the clean cycle.  This light will remain illuminated throughout the entire clean cycle.  The ice machine will not produce ice while the clean light is on.

Bin Switch Light

Most Manitowoc control boards will have a light labeled bin switch or left bin, right bin.  This light indicates when the water curtain magnet is making contact with the bin switch.  This will tell the ice machine when it is full or should terminate the harvest cycle.  If you open the water curtain or damper door, the light should go out.  Anytime that light is on, the bin switch should be satisfied and the unit should be producing ice.


Before Replacing A Manitowoc Control Board January 09 2014, 77 Comments

In my experience, the control board on Manitowoc Ice Makers is quite possibly the #1 misdiagnosed component.  Service technicians tend to blame the electronics in the control board before properly testing and checking on the various probes that tell the board what to do.  Remember, garbage in, garbage out.

Before ordering or replacing a Manitowoc control board, check the following probes.

Water Level Probe – Often times when the water level probe gets dirty from scale build up, it will false read, telling the control board that the sump trough is full.  Because the board is being told the trough is full of water, it will shut the water inlet valve off.  This will lead to thin or no ice formation on the evaporator.

S Series Manitowoc Water Level Probe 20-0654-9

Q Series and older Manitowoc Water Level Probe 25-1129-3

Ice Thickness Probe – The ice thickness probe on Manitowoc Ice Machines is another common item that will fail due to being dirty.  The scale build up from hard water will tell the ice machine that it’s got a full sheet of ice and ready to harvest, when in reality there may be little to no ice formation.  Early harvests, with no ice to trip the bin switch, will eventually lead to a safety limit lock out.  Clean or replace your ice thickness probe before replacing a control board, your bottom line will appreciate it.

S Series Ice Thickness Probe 20-0802-9

Q Series and Older Manitowoc Ice Thickness Probe 76-2781-3

Magnetic Bin Switch – The bin switch on Manitowoc Ice Makers is the component that tells the machine when the ice has harvested off of the evaporator.  When the ice falls it will break the magnetic proximity switch on the water curtain, which tells the ice machine to terminate the harvest sequence and go back into a freeze cycle.  This item can be very difficult to diagnose because of being an intermittent problem, the only way to test is to OHM the switch out and look for consistency.

S Series Magnetic Bin Switch 000007888

Q Series and older Manitowoc Magnetic Bin Switch 23-0148-3

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