Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Drain the domestic hot water circuit and remove
electrical connection to the DHW flow sensor
Remove DHW flow sensor from the boiler
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 sensor is removed
electrical connection to the DHW flow sensor
Remove DHW flow sensor from the boiler
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 sensor is removed
Observation:
Examine the flow sensor assembly for restrictions/blockages or damage.
1. Flow restrictor
2. Flow sensor housing
3. Flow sensor
4. Brass housing
5. Inlet filter
1. Flow restrictor
2. Flow sensor housing
3. Flow sensor
4. Brass housing
5. Inlet filter