Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove the wires or link from terminals 5 and 6 to the external controls
(right hand side of terminal block, refer to pictures)
(right hand side of terminal block, refer to pictures)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the boiler still try to fire for a CH demand?
Isolate as per TOPs P4
and refit as necessary