VALVE FAULT Siemens — Control Valve Stuck
At a glance
- Severity
- WARNING THEN STOP
- Domain
- CHILLED_WATER_SYSTEM
- Reference standard
- EN 50600-3-1
What it means
Control valve stuck or actuator failed: flow imbalance across zones, room units out of thermal control.
Probable causes
- Deposits and scale on the plug
- Actuator or positioner failed
- Command signal missing (controller, BMS)
- Stroke not calibrated after maintenance
Where to start
Verify commanded vs actual valve position and the command signal (0-10 V / 4-20 mA) from the controller.
Full guided diagnosis in the app
The diagnostic tree for this fault has 3 guided steps with measurements, checks and resolutions. You'll find it in DataCIQ, one of the five IndexOS apps: free, works offline.
Printable sheet + Siemens updates
Leave your email: get the link to the printable Siemens error-code sheet and a heads-up when we add new codes and guides.
Double opt-in, zero spam, one-click unsubscribe.
The same fault on other brands
More Siemens codes
- SENSOR RANGE — Sensor Drift on Water Circuit
- 0xE900 / 0xE901 — IO-Link communication lost (device not responding)
- 6EP1333-4BA00 — Unstable PLC power supply — cyclic restarts
- 6ES7521-1BL00-0AB0 — Digital input module — input not reading (stuck at 0)
- 6ES7522-1BL01-0AB0 — Digital output module — output not activating
- 6ES7531-7KF00-0AB0 — Analog input module — full-scale reading or error
- ANSI 50/51 — Overcurrent Protection 50/51 Trip
- COMM LOSS — Supervision Network Loss