The use of Lanyu water heater shows that it can't be ignited in winter.

When the gas water heater works, it can only work if the pressure of natural gas or liquefied gas is sufficient, the water inlet pressure is sufficient, and there is no problem when the power supply and the electronic igniter work at the same time (you should hear a click when working). If it is a pulse electronic igniter of a dry battery, it may be dead. Replace the battery.