Viessmann Vitodens 111-W Error 416: Fault during commissioning

Viessmann Vitodens 111-W water heater · taken from the manufacturer’s manual, pages cited

Fault code416

Fault 416 indicates a problem with the flue gas temperature sensor not being positioned correctly during commissioning. The manual's first action is: “For further details regarding the flue gas temperature sensor test, see "Repairs". If fault message 416 appears, reposition the flue gas temperature sensor in the flue gas connection. Check for leaks on the flue gas side.”

Model
Viessmann Vitodens 111-W
Display shows
Fault during commissioning (416)
Type
Fault code
Source
Manual p. 35

What 416 means

Fault during commissioning p. 35

Common causes

  • If the flue gas temperature sensor is not positioned correctly, fault message 416 appears. p. 35
  • During commissioning, the control unit checks for correct placement of the flue gas temperature sensor. p. 35
  • If fault message 416 continues to be displayed although the flue gas temperature sensor is correctly positioned. p. 35

What to do

  1. For further details regarding the flue gas temperature sensor test, see "Repairs". If fault message 416 appears, reposition the flue gas temperature sensor in the flue gas connection. Check for leaks on the flue gas side. p. 35
  2. Check whether the flue gas temperature sensor is correctly installed (bayonet fitting). See previous diagram. p. 35
  3. If required, correct the position of the flue gas temperature sensor. p. 35
  4. Check the flue gas temperature sensor resistance. See previous chapter. Replace faulty flue gas temperature sensor if required. p. 35
  5. Initial commissioning may result in burner faults e.g. caused by air in the gas line. Eliminate the fault and reset the appliance. p. 35

If 416 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Viessmann service.

This page summarises what the manufacturer’s manual says about 416; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Viessmann. Found a mistake? Report an error.