An error message (E1, E3, E4, E5) is displayed on the wireless radiator valve actuator in the event of an error. The display switches off after 10 seconds and the actuator goes into sleep mode.

Error message

Possible causes

Solutions

Mechanical adaptation failed.

  • Incorrect adapter
  • Defective or jammed valve
  • Not calibrated
  • Mechanical obstructions, e.g. dirt or foreign objects in the valve or adapter
  • Missing service

ยป Use the correct adapter and check the valve.

Valve cannot move

  • Mechanical obstructions
  • Defective or worn parts, e.g. in the valve guide
  • Stiff or jammed valve, e.g. caused by prolonged standstill in the summer
  • Incorrectly mounted

ยป Check if the valve stem can freely move. If stuck, tap gently on the stem to loosen it.

CAUTION! Never pull on the stem! Improper manipulation can damage the radiator valve as well as the actuator.

Lost connection to controller.

  • Signal interference - interference, e.g. WLAN router on a 2.4 Ghz network, Bluetooth, or microwaves can interfere with the signal (temporarily or permanently).
  • Weak batteries
  • Firmware problems, e.g. outdated or faulty firmware
  • Network problems
  • Physical obstructions - thick walls or large distances from the control device reduce the signal strength on the SSA911.02TH and can result in a loss of connection.

ยป Check or supplement Thread Border Router / Thread Mesh Extender 1).

ยป Restart pairing.

ยป Update firmware.

Not connected to controller.

  • Network problems
  • Incorrect IP address or network configuration
  • Signal interference

ยป Check the system.

1)

See also Thread engineering and installation guide A6V14476178
(www.siemens.com/bt/download)

  1. In the event of an error, press one of the touch elements to switch on the display.
  • E4, E5: The setpoint temperature is displayed for 1...2 seconds; you can change the setpoint during this time.
  • An error message is then displayed; the display switches off after 10 seconds without pressing a touch element and the actuator goes into sleep mode.
  • E1, E3: Pressing one of the touch elements again triggers a new adaptation attempt.
  1. Consult the error table above on how to proceed.
  • E1, E3: Mechanical check and correction
  • E4, E5: Network and system check and correction
  1. Trigger automatic valve detection (see Commissioning).