Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
CH Demand
Mains Reset Switch OFF
Disconnect J4 connector at PCB and make safe
Disconnect J4 connector at PCB and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Mains reset switch ON.
Measure voltage across the red and blue leads
(terminals 1 and 5).
Expected voltage approximately 37 volts DC.
Measure voltage across the red and blue leads
(terminals 1 and 5).
Expected voltage approximately 37 volts DC.
Note:Test shall be carried out with connector in-situ, attached to the fan.
 connector dc.gif)
Isolate as per TOPs P4
and refit as necessary