Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Turn Hot Water Tap On
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Run the DHW tap with a flow rate of 3 l/min.
There is no need to wait for the fan purge to finish before commencing this test.
Measure the DC voltage between pin 11 on connector X5 and the earth on the incoming mains supply.
Expect 2.9 vdc.
Is the voltage measured as expected?
There is no need to wait for the fan purge to finish before commencing this test.
Measure the DC voltage between pin 11 on connector X5 and the earth on the incoming mains supply.
Expect 2.9 vdc.
Is the voltage measured as expected?
