Hua Qin natural gas err4 valve closing fault misoperation

Solution of err4 Valve Closing Fault in Hua Qin Natural Gas Company;

1. The natural gas card shows that err04 battery is dead and needs to be replaced.

2. You should know that the plug-in natural gas meter belongs to the prepaid gas meter, and you need to go to the property or the self-service natural gas charger to recharge the natural gas card before you can inflate it. Generally, natural gas will have 10 to 20 cubic meters of spare gas. If you suddenly run out of gas, you can plug in the card and use the spare gas at one time.