Viessmann Boiler: Actuator test: drive fan, burner, pump and 3-way valve by hand
Actuator test: drive fan, burner, pump and 3-way valve by hand on a Viessmann boiler: Each actuator test function runs for 30 s: fan rpm, burner Off / Min / Max heating / Max DHW, 3-way valve Heating / Centre / DHW, pump speeds, mixers, zone pumps.
Applies to: Vitodens 200-W B2HE 85, 120, 150, 199
How to fix actuator test: drive fan, burner, pump and 3-way valve by hand: step by step
- Service menu > Actuator test
- Pick the group (Boiler, Heating, DHW, Solar) and the function
- Function stays active 30 s, then drops out
If the unit shows an error code, look it up: Viessmann Boiler codes
Models
B2HE-85B2HE-120B2HE-150B2HE-199
Source: Viessmann Vitodens 200-W B2HE 85/120/150/199 Service Instructions (6167 813-24), Actuator test. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.