Boiler or surrounding area smells of gas, especially near the gas valve or pipe connections.

Critical safety warning: If you smell gas, do not operate electrical switches, do not use open flames, and evacuate the area if the smell is strong.

• Shut off gas: Turn off the gas isolation valve to the boiler and, if safe, the main gas supply to the property.
• Ventilate: Open windows and doors to disperse gas.
• Do not attempt repairs: Gas leaks must be located and repaired by a licensed gas technician using leak detection equipment.
• Do not use boiler: Keep the boiler off until it has been inspected, pressure-tested, and declared safe.