125
Draining the fuel cell module on the heating water side
B
A
Fig. 94
1.
If these have not yet been actioned: Set service
mode (see page 75).
Note
The cooling process on the fuel cell module lasts
approximately 90 min.
!
Please note
If this waiting time is not observed,
there is a risk of scalding and damage to the
appliance.
2.
Place a shallow container of sufficient size (min.
5 l) below drain port
A
.
3.
Unscrew the filter from drain port
A
.
4.
Undo screw
B
approx. 1.5 turns.
Draining the system on the DHW side
B
A
Fig. 95
1.
Shut off the cold water connection.
Troubleshooting
Repairs (gas condensing module)
(cont.)
5775 636 GB
Diagnosis
Summary of Contents for C3TB
Page 136: ...136 Troubleshooting Repairs gas condensing module cont 5775 636 GB Diagnosis ...
Page 143: ...143 Parts lists Heat cell assembly 5775 636 GB Components ...
Page 160: ...160 Parts not shown 0009 PCB IU100 B30 Parts lists Fuel cell assembly 5775 636 GB Components ...
Page 161: ...161 Parts lists Fuel cell assembly cont 5775 636 GB Components ...
Page 187: ...187 5775 636 GB ...
