Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Disconnect external controls at terminal 14 of
connector CN7 and make safe
connector CN7 and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Does the display still show a CH demand?
Isolate as per TOPs P4
and refit as necessary