Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Use Insulation Mat as required
Remove the PCB Cover
Remove the PCB Cover
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Carry out a check for mains voltage on the Live and Neutral connections on the boiler side of the main terminal strip.
Performing this test here also checks that the two fuses in the terminal strip are intact.
Performing this test here also checks that the two fuses in the terminal strip are intact.
Isolate as per TOPs P4
and refit as necessary