Bosch WR11B series Installation Manual And Operating Instructions page 19

B Undo magnetic unit connector.
B Remove thermocouple.
B Replace damaged component with new one and refit
using the reverse of the procedure set out in the table
above.
Function check
Flue gas safety device function check:
B Disconnect flue pipe;
B Replace with pipe (about 50 cm long) with sealed
end;
B Fit pipe vertically;
B Start up appliance at rated output and set
temperature control to maximum temperature;
Under those conditions, the appliance should shut
down after two minutes. Remove temporary pipe and
reconnect flue pipe.
Maintenance (must be carried out only by qualified technicians) | 19
6 720 648 592 (2011/06)