Zodiac pool heater emits a strong gas smell around the unit, especially at startup.

Critical safety: If you smell gas, turn off the gas supply at the shutoff valve, turn off power to the heater, evacuate the area, and do not operate electrical switches nearby. Contact your gas supplier or a qualified technician immediately.

• Do not attempt DIY leak testing with open flame. A professional should perform a leak-down test with a manometer and approved leak detection solution.
• Check for obvious loose fittings (visual only): With gas off, visually inspect the gas union, manifold, and valve connections for signs of movement or damage.
• Professional repair: Any suspected gas leak or combustion issue must be addressed by a licensed gas technician familiar with Zodiac heaters.