Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
DHW Demand
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
With connector X15 attached to the PCB measure the voltage between the Brown wire and the neutral at the incoming mains terminal strip, when the appliance reaches the sparking stage of its ignition cycle after approximately 12 seconds.
Expect approximately 24V DC.
Note:
It is difficult to test the voltage on the connector itself, it is recommended the test is carried out on the small round metal test point on the PCB leading to the connector. It may be necessary to reset the appliance during this test.
For guidance on Resetting the appliance click here
Expect approximately 24V DC.
Note:
It is difficult to test the voltage on the connector itself, it is recommended the test is carried out on the small round metal test point on the PCB leading to the connector. It may be necessary to reset the appliance during this test.
For guidance on Resetting the appliance click here
Isolate as per TOPs P4
and refit as necessary