• Ref Tools App

  Troubleshooter

  Essential information when troubleshooting refrigeration systems

Solenoid valve does not close/ closes partially

• Continuous voltage on coil
• Manual spindle not screwed back after use
• Pulsation in discharge line. Differential pressure too high in open position.
• Pressure in outlet side sometimes higher than in inCheck technical data of valve. Check pressure and flow condition inlet.
• Damaged or bent armature tube
• Defective valve plate, diaphragm or valve seat
• Diaphragm or support plate wrong way round
• Impurities in valve plate. Impurities in pilot orifice. Impurities in armature tube.
• Corrosion/cavitation of pilot/main orifice
• Missing components after dismantling of valve.