Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove DHW hall sensor from flow valve
Remove connector from the hall sensor and make safe
Remove connector from the hall sensor and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
With the DHW hall sensor disconnected does the DHW demand LED now extinguish?
Isolate as per TOPs P4
and refit as necessary