Viessmann Vitodens 050-W Installation And Service Instructions Manual page 57

Repairs
(cont.)
Replacing the flow sensor
C
E
B
01. Drain the boiler on the DHW side.
D
02. Pull the leads off faulty flow sensor
A
03. Pull off spring clip B.
04. Remove enclosure C with flow
05. Pull off spring clip D and remove
06. Select new flow limiter E from the
07. Insert new flow limiter E.
08. Fit new flow sensor A with new
09. Insert spring clip B.
10. Attach leads.
Troubleshooting
A.
sensor A.
faulty flow sensor A.
table on page 56.
gaskets in enclosure C. Insert
spring clip D.
57