Heater emits a strong gas smell around the unit, especially near the gas connections

Critical Safety Warning: If you smell gas, do not operate the heater, do not use electrical switches near the unit, and keep flames and sparks away. Shut off the gas supply at the main valve and ventilate the area. Contact your gas supplier or a licensed gas technician immediately.

• Do not attempt DIY gas repairs unless qualified: Gas leaks must be located and repaired by a licensed professional using proper leak detection methods.
• Leak testing: A technician will apply a soap solution or use an electronic detector on all joints, including the gas valve, manifold, and unions, and then tighten or re-pipe as needed.