Troubleshooting
Repair
(cont.)
Replacing the flow rate sensor
Note
In the event of a fault, both sensors need
to be replaced.
1. Drain the boiler on the heating water
side.
2. Pull leads from flow rate sensor A.
138
A
3. Undo screws and remove faulty flow
4. Install new flow rate sensor A and
rate sensor A.
secure with the screws.