Problem & answerF-12
Solenoid Valve Failure
Likely causes
- Coil burned out
- Valve blocked
- Wiring fault
- Moisture contamination
- PLC output failure
How to fix it
- 1Check the electrical supply and measure coil resistance.
- 2Clean the valve.
- 3Replace a faulty coil or valve.
- 4Verify the PLC output signal.
- 5Test pneumatic operation.
It is fixed when
Valve switches correctly during operation.
Stop it coming back
- Inspect valves every three months and keep compressed air clean and dry.
Did this solve the problem?