Sub-Zero 315I gravity-drain undercounter ice maker repair
The 315I is an undercounter ice maker that empties through a gravity drain, which means it needs a floor drain or a drain line that slopes properly. It is a 24-inch, depth-true cabinet that takes a custom door panel and is usually found in a bar or a pantry run. It is a discontinued 200/300 Series model.
Its clear, barrel-shaped ice is the reason people keep these units running. As it ages, output usually fades gradually, and cloudy cubes tell us the water or the freeze cycle has changed.
If ice stops right after a filter swap, we look at the water supply and inlet valve first. Next come the drain line and the condenser airflow. We give you a written price before starting and a 30-day workmanship warranty after.
Slow loss of output usually means a partly clogged water supply, a dirty condenser, or a weak freeze cycle. We check water flow and airflow first, then watch a full cycle before quoting any repair.
Cloudy ice means minerals, trapped air, or an incomplete freeze. A fresh filter, a clean water line, and a proper freeze cycle usually bring back the clear ice. We test each step and report what we find.
Yes, it relies on a gravity drain, so the drain line must slope properly toward the drain. If your setup cannot drain that way, we will tell you during the visit and explain the options.
Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.
