There are a few common heater problems that our customers experience. These include: - A heater that won't turn on: This problem is often caused by a tripped circuit breaker or a blown fuse. If your heater won't turn on, check your circuit breaker or fuse box to see if there's been a power outage in your home. - A heater that won't stay on: If your heater turns off after a few minutes, it could be due to a problem with the thermostat. It might also be caused by a faulty igniter or pilot light. -  Strange noises: If your heater is making strange noises, it could be due to a build-up of dirt and debris in the system. It might also be caused by a loose part or an electrical issue.