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Troubleshooting Your Sub-Zero Ice Maker

Troubleshooting Your Sub-Zero Ice-Maker

When you purchased your Sub-Zero Ice Maker, I bet the last thing you envisioned was it breaking down on you. 

After all, you wanted ice-cold drinks, and to be able to sip them whenever you want. 

You never expected to walk into your kitchen in the morning and discover that your ice-maker had started leaking water overnight

However, these things happen. And although Sub-Zero ice-makers are some of the most reliable ice-makers on the market, that doesn’t mean that they’re invincible.

So when things do go wrong, troubleshooting the unit is the first step to getting your ice maker back into working order. 

Most issues with your unit can be quickly diagnosed on your own, and if needed, repaired by our expert technicians.

Common Ice Maker Problems

Below, we’ll go over some of the more common problems we see with Sub-Zero ice-makers. 

For any issues not listed here, or any issues that you’d prefer to have a professional take a look at, don’t hesitate to contact us today.

Broken Water Inlet Valve

Sub zero ice maker valve

The inlet valve is the connection point where your home’s water supply lines will enter into the ice-maker unit. In many unit’s this connection point will have an inlet valve that allows you to turn the water supply on and off. 

Start by checking the connection and valve for any signs of leakage. If you notice water leaking from a connection, you can try to tighten it to see if this stops the leak. 

However, if the valve itself is cracked, split or broken, you may need to have the entire component replaced. 

Although troubleshooting your sub-zero ice maker may seem like a simple task, trying to determine ongoing issues with the water inlet valve isn’t a task for the inexperienced.

Low Water Pressure

low water pressure

If you’re having trouble with your ice maker, one area to consider investigating is whether or not the water pressure is adequate. Low pressure may be preventing the ice-maker tray from filling up properly, in turn, leading to a lack of ice or smaller than normal cubes. 

Depending on the unit, somewhere between 20-120 psi is usually the standard water pressure range needed for optimal functioning. If the water pressure is too low, the feed tube within the unit may become frozen, preventing the ice maker flow.  

For the average individual, troubleshooting the water pressure within their ice-maker unit’s water lines isn’t very practical. Therefore, to help you troubleshoot this type of potential issue, we recommend contacting us today for a fast and simple assessment.

Malfunctioning Door Switch

Sub zero door switch

Next up, we have another troubleshooting step that requires some mechanical and electrical understanding to complete. 

If you suspect your door switch is defective, you’ll need to use a multimeter to test it for continuity. 

While those who understand how continuity works may be able to perform a test like this on their own, it’s often safer and easier to leave this type of diagnosis to a trained professional. 

If you notice issues with the light staying off while the door is open, the fan fails to run and circulate air, the temperature simply isn’t staying consistent, or anything similar, don’t hesitate to call a technician to troubleshoot the issue before it gets any worse.

Leaking Water Filter

Sub zero ice maker water filter

One of the easier problems to troubleshoot, a leaking water filter, requires prompt attention to prevent water damage to your kitchen and home. 

First, you’ll want to start by inspecting the water filter by removing it from its sleeve. 

Check that there are no cracks or visible damage to the filter itself or the sleeve (if it is, give us a call). And, make sure that the o-ring gaskets are properly in place and seated where they should be. 

If you notice any of the gaskets are placed properly, this is quite likely what’s causing your leak. 

Simply replace the gaskets where they should be, reassemble the filter and recheck for signs of leakage. 

A small amount of water spilling out of the water filter during replacement is normal. 

However, if the leak resumes once everything has been reassembled, it’s important to shut off the water supply and contact a technician for diagnosis and repair.

Broken Control Panel

Whether your control panel has gone dark or it’s simply not responding, there are a few steps you can take to troubleshoot the problem. 

The first thing you’ll want to determine is whether or not the appliance is actually receiving power. 

In some cases, the ice-maker may have been unplugged, or if it has recently undergone a power surge, it’s also possible that the circuit breaker has been tripped. 

If the unit has not lost power, you might be able to get things working again by performing a hard reset.

For this, using the circuit breaker, turn off the power for 30 seconds and then turn it back on. Then, retest the control panel. 

If the control panel is still non-responsive, calling a technician is needed to diagnose and repair the sub-zero ice maker accurately.

Sub zero control panel
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DIY Repairs Or Professional Help?

When things go wrong with your ice maker, it’s important to determine whether it’s something within your capacity to troubleshoot or if expert diagnosis and repair is required. After all, getting your unit back up and running quickly is important to you. To help save you the headache and hassle of troubleshooting your Sub-Zero Ice Maker, we recommend giving our expert technicians a call. We are dedicated to getting your ice maker back up and running as quickly as possible. Contact us for help with all of your appliance problems today. We’re always happy to help!

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