Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Gain access to PCB (use Insulation Mat as required)
Attach a crocodile clip to the rectification lead
Attach a crocodile clip to the rectification lead
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset appliance as necessary.
Allow boiler to complete its self check.
Set the appliance to t6 - click here for information on how to set the boiler test modes.
Measure the voltage between the green wire
on X4 marked 11.1 and the crocodile clip.
Approx 40V AC should be measured.
Allow boiler to complete its self check.
Set the appliance to t6 - click here for information on how to set the boiler test modes.
Measure the voltage between the green wire
on X4 marked 11.1 and the crocodile clip.
Approx 40V AC should be measured.
