Scotsman ice machines are fixtures in restaurants, hotels and other establishments worldwide. With over 300 models of makers, dispensers and bins that offer a wide variety of ice in unique shapes and textures, it’s no surprise why.
When these commercial ice makers aren’t running properly, pinpointing the exact problem can be challenging. But don’t worry! Below are some common issues troubleshooting tips a Scotsman ice machine.
If the lights and indicators are off and there are no audible sounds are coming from the machine, the power could be off. Here are a couple of clear indicators.
- Power switch is off or cord is unplugged – Before you start trying to diagnose any problems, check if the power switch is off. This potentially will save you the stress of having to dive deeply into your machine. Also, see if the power cord was unplugged or accidentally knocked out of the outlet. If you notice rips or damage to the cord, replace it with a new one.
- Blown fuse or tripped circuit – If the power switch is on but there still is no power, you could have a blown fuse or tripped circuit in your building’s fuse box. Reset the circuit breaker or replace the blow fuse.
Not Making Ice or Making Too Much Ice
When your machine won’t make ice or makes too much ice, here are some issues that could be the culprit.
- Leaking – Leaks can affect the production of ice in your unit. Check if there is leaking through the hot gas, thermal expansion or inlet water valves. In some cases, leaks could be coming from worn out fittings, drains and tubing.
- Blocked condenser – When the freezing and harvest cycles are too long, there might be dirt or scale buildup in the condenser or air filter. Cleaning both components should help increase production. If you notice damage to either one, make sure to replace it immediately.
- Low room temperature – Most Scotsman ice makers won’t produce ice when the temperature is below 55 degrees Fahrenheit. Make sure the machine is in a room or setting that is warmer.
- Misleading “Bin Full” light – If you see the “Bin Full” light is on but the bin isn’t full, the ice sensors might need to be cleaned or replaced.
- Faulty thermistor – A bad thermistor usually causes the bin to fill with too much ice. Use a multimeter to test the thermistor. If the multimeter reading comes back negative, replace it.
Ice is Melting or Flawed
- Excess water melting ice – If you water keeps running into the bin, it can melt the ice. Excess water typically is caused by drainage problems. See if there is a blockage in the drain or tubing. Leaks from various valves, fittings and components also can cause a water buildup that melts ice (see “Leaking” in section above for more details).
- Misshapen ice – While leaking from the curtain or pump hoses can affect the shape your ice, there are other key factors to look for. There could be an insufficient water supply coming into your unit or the water filters might be dirty. Also, defective spray jets might be dirty or broken, causing cubes to be misshaped or a fraction of its intended size.
Machine is Noisy
Like most ice makers, Scotsman usually have a soft humming sound when in operation. The abnormal noises below might indicate an issue.
- Squealing sound – If your machine is making a high-pitch squeal, see if there are any tight or dry bearings in the motor pump. Lubricating the bearing should help eliminate the sound.
- Grinding sound – This noise usually stems from the unit’s pump. Try cleaning the surrounding area if there is dirt or scale buildup. If that doesn’t help, you may need to replace the pump.
- Rattling sound – Rattling noises could be attributed to a couple of factors. First, see if there are loose screws on the back panel and fasten them. If that’s not the case, check the pump fan’s blades. A damaged fan blade could be causing the loud noise.
How to Reset a Scotsman Ice Machine
Like a computer or smartphone, sometimes resetting your Scotsman ice machine is all it takes to get things back in order below are steps that work on most models. Find the control panel on your unit, and locate the red button on the panel. Press down and release the button to power the machine down. All the indicator lights should turn off. Then, locate the green button and hold for a second before releasing. The machine should turn back on and start the reset process.
If you need more info on troubleshooting a Scotsman ice maker, check out our selection of manuals and diagrams by model. In some cases, you’ll need to contact an authorized service agent to resolve the issues with your machine.