How Saint Paul ice maker calls actually break down
Before we touch the ice maker we put a thermometer in the freezer. An ice maker will not cycle reliably above about 10°F, and a surprising share of Saint Paul "broken ice maker" calls are really a defrost or evaporator fan problem in the refrigerator. Fixing the cooling fault brings the ice back for free, and telling you that up front is cheaper for you than a module you did not need.
When the freezer is genuinely cold, the next stop is water. Saint Paul city water is moderately hard, so inlet-valve screens scale up and fill volumes drop — that is the classic hollow or undersized cube complaint in Highland Park, Macalester-Groveland, and Summit Hill. Older homes in Como Park, Frogtown, and the West Side add a second wrinkle: thirty-year-old basement saddle valves on the quarter-inch line that never fully open again once someone bumps them.
The third bucket is the ice maker itself — module gears, the thermostat or bimetal, and on Sub-Zero, Thermador, and Viking built-ins the dedicated ice-maker evaporator. Those built-in units are common in the remodeled kitchens of Cathedral Hill and Summit Hill, and they are a different repair with a different price than a $180 freestanding module swap.