Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Test 1.
Measure for DC voltage across test point 1 & a suitable earth connection.
Expected voltage approximately 30 Vdc (if voltage is not as expected do not proceed, choose option from below).
Test 2.
Measure for DC voltage across test point 2 & a suitable earth connection.
Expected voltage approximately 29 Vdc.
Measure for DC voltage across test point 1 & a suitable earth connection.
Expected voltage approximately 30 Vdc (if voltage is not as expected do not proceed, choose option from below).
Test 2.
Measure for DC voltage across test point 2 & a suitable earth connection.
Expected voltage approximately 29 Vdc.
