What should be done with a boiler that has been shut down for maintenance?

When a boiler has been shut down for maintenance, it is crucial to ensure that it cannot be accidentally turned back on during that time. Properly locking out and tagging the boiler not only complies with safety regulations but also safeguards personnel who may be working on or near the equipment. This process prevents unauthorized or accidental operation while maintenance is ongoing, which can lead to serious accidents or injuries.

An effective lockout/tagout procedure involves physically locking the boiler's controls and placing a tag indicating that maintenance is in progress. This practice is part of safety protocols and is essential for maintaining a safe work environment.

While inspecting by a licensed technician is important for ensuring the boiler is in good working condition, this action alone does not address the immediate risk of accidental startup during maintenance. Allowing the boiler to cool naturally may be necessary depending on the type of maintenance being performed, but it does not mitigate the risks associated with unauthorized or accidental operation. Leaving the boiler unattended until repairs are complete is also a risky practice, as ongoing work could inadvertently create hazards if not properly secured. Therefore, the most critical action is to lock out and tag the boiler to ensure safety during maintenance.