1. Impurities enter the valve core of the gas solenoid valve. Solution: cleaning
2. The spring is deformed. Solution: Replace the spring
3. The operating frequency of the gas solenoid valve is too high, leading to its service life. Solution: Replace with new products
4. The seal of the main spool is damaged. Solution: replace the seal
5. The orifice is blocked. Solution: cleaning
6. The viscosity or temperature of the medium is too high. Solution: Replace the gas solenoid valve model with better applicability