Can I use a SawStop in cold environments? Cold ambient temperatures should not affect your saw mechanics. However, your saw’s brake cartridge contains “computer-like” parts that can be affected by extreme cold. If the cartridge is stored in temperatures well below freezing, the saw won’t turn on until the cartridge warms up. If you are in an extremely cold climate, we recommend removing the cartridge (which you can do with the blade in place) and storing it above freezing. Alternatively, some customers choose to leave the yellow “hard” power switch on all the time. This provides just enough heat to the cartridge to help ensure startup in spite of extreme ambient cold.