Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Drain the domestic hot water circuit and remove the inline electrical connection to the DHW flow sensor & inlet temperature sensor
Remove flow regulator, flowmeter, motor reducer group from the boiler
Remove the flow sensor assembly & inlet filter
WARNING!
There may be residual water even when DHW inlet is turned off and water drained, take precautions to prevent water damage to the electrics when flow turbine is removed.
Remove flow regulator, flowmeter, motor reducer group from the boiler
Remove the flow sensor assembly & inlet filter
WARNING!
There may be residual water even when DHW inlet is turned off and water drained, take precautions to prevent water damage to the electrics when flow turbine is removed.
Observation:
Examine the flow sensor assembly, housing, inlet filter & flow reducer for signs of restriction/blockage or damage.
1. Flow sensor housing
2. Flow sensor
3. Inlet filter
4. Flow regulator
1. Flow sensor housing
2. Flow sensor
3. Inlet filter
4. Flow regulator
Isolate as per TOPs P4
and refit as necessary