Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
No demands present
Gain access to terminal block
Remove external controls connected to
terminals 1 & 2 and make safe
Gain access to terminal block
Remove external controls connected to
terminals 1 & 2 and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Cancel boiler purge / self-check (reset) if required.
With external controls disconnected does the boiler still attempt to run for CH (radiator symbol displayed)?
With external controls disconnected does the boiler still attempt to run for CH (radiator symbol displayed)?
Isolate as per TOPs P4
and refit as necessary