Low-water cutoffs are the main reason for boiler accidents. Maintaining your low-water cutoff can prevent a disaster that can break even a new boiler. The control on the cut off should be checked weekly and is fairly easy to do, depending on the type you use. Manufacturers recommend disassembly of the cut off once a year to check for mud or corrosion. You can also do a slow drain test that simulates how the cut-off works so you can check proper function. These steps are important to maintain your warranty and to keep your boiler working for years to come.