“The ice maker stopped” is a useful starting sentence, but it is not a diagnosis. A Sub-Zero 700 Series Over-and-Under refrigerator combines a refrigerator section, a freezer section, controls, and model-dependent water and ice equipment. The same empty bin can result from a water problem, a temperature problem, a harvest problem, a full-bin signal, or a control condition.
Use the model and serial information to find the correct 700 Series Use and Care Guide. The control layout, ice-maker procedure, filter arrangement, and alarm wording can vary across the family. Write down what the appliance does before changing settings.
Start with the ice-bin observation
Look at the ice bin without reaching near moving parts. Is it empty, partly filled, or packed with clumped ice? Are the cubes smaller, thinner, or shaped differently than usual? Does the ice remain attached in the mold, or does it appear to be made but not delivered to the bin?
Do not chip ice with a knife or pry against the ice maker. Do not pour hot water into the assembly. A tool can damage the mold or cover, while heat can change the evidence and create a water problem inside the freezer.
Check whether the normal ice-maker control is on. If you are not sure what the indicator means, use the exact guide for the unit. Avoid pressing several buttons just to see what happens. Record any light or display state before you acknowledge it.
Water supply and filter clues
If the model has an accessible water filter, record whether it was recently replaced and whether the installation followed the guide. A filter condition can affect water delivery, but a no-ice complaint does not prove the filter is the cause.
Confirm that the normal household water valve is open and look for a visible kink or leak at an accessible connection. Do not disconnect the line, pull the appliance from its enclosure, or work under the kickplate. Water near electrical equipment needs extra caution.
Listen during a normal cycle. A click without visible water, no sound at all, or a short attempt followed by silence are different observations. None of them names a failed inlet valve. The technician may need to check water flow, the valve, the ice-maker mechanism, the control signal, and the temperature conditions.
Temperature and airflow matter
Ice production depends on the freezer environment. Record whether other frozen food is hard, whether the freezer is warmer than normal, and whether the refrigerator section also changed. A freezer that is not cold enough can stop ice production while the refrigerator controls still appear normal.
Look for food blocking a visible air opening or a drawer that is not fully closed. Do not remove an interior cover or try to clear a fan by hand. If you hear scraping, grinding, or repeated clicking, note when it occurs and whether it changes when the door opens. Keep hands away from the fan and evaporator area.
Frost on a surface can be a clue to a door, airflow, or defrost condition. It is not a reason to scrape the surface. Take a photo and let the technician see the pattern before it changes.
Harvest and delivery observations
The ice maker must form ice, release it, and move it toward the bin. Record which stage appears to fail. If cubes form but remain in place, say that. If the bin receives ice but the dispenser does not deliver it, treat that as a different complaint. If the bin is full or the shutoff arm is in a normal stop position, record that too.
Do not reach into the ice-making mechanism while it is powered. Do not bend a shutoff arm, bypass a bin switch, or run a forced harvest without the model-specific procedure. A forced action may hide a control problem or damage a small mechanism.
What a technician checks
An in-person diagnosis can compare freezer temperature, water delivery, ice-maker movement, bin signals, airflow, wiring, and control behavior. If the freezer itself is warm, the technician can follow the cooling evidence instead of treating the ice maker as an isolated part. If the freezer is normal, the water and harvest path can be tested more directly.
The written estimate should connect the findings to the proposed work. It should not turn an empty ice bin into a guessed part list. A diagnostic visit is also the right time to explain whether a filter or operating condition is separate from a repair recommendation.
A better ice-making record
Write the ice history in order: last normal production, first change, current bin condition, and any setting or power event. If the freezer is also warm, include that before discussing the ice maker. If the freezer is normal but the bin is empty, note whether you heard a fill, freeze, or harvest attempt.
Do not describe a small cube as proof of low refrigerant. Water delivery, freezer temperature, airflow, a mold condition, and controls can all affect the result. The value of the record is that it helps the technician choose what to test first.
Keep the filter information and model number available. A filter may be relevant to water flow, while the actual repair could be elsewhere. The same disciplined note helps with a full bin that will not dispense, because storage and delivery are not the same as ice production.
Safety before opening anything
Do not open electrical panels, pierce refrigerant lines, connect gauges, bypass a control, or work near a fan. Refrigerant and electrical tests are technician work. If you find a water leak near wiring, smell burning, or hear an abnormal motor noise, stop using the affected function and keep the area clear.
The Sub-Zero brands hub has related model-family guides. The services hub explains the appliance service categories, and the FAQ covers diagnosis and estimates. Use the contact page to send the model and ice-cycle observations.
For a 700 Series refrigerator, the next step is a $99 diagnostic, credited toward an approved repair.