Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Isolate cold mains input into the boiler
Drain dhw water content from the boiler
Remove dhw flow restrictor from pipe connection to heat exchanger
Ensure precautions are taken against water loss from pipe work
Drain dhw water content from the boiler
Remove dhw flow restrictor from pipe connection to heat exchanger
Ensure precautions are taken against water loss from pipe work
Observation:
Inspect the restrictor for any blockages and its overall condition.
Isolate as per TOPs P4
and refit as necessary