Set Appliance State:
Mains Power Off
Gas Off
Set Multimeter to AC Volts 
CH Demand
Selector switch in winter position
Timer switched to FIX ON
Timer switched to FIX ON
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
When yellow Ignition LED comes on.
Measure Mains voltage across J15 connection 2 (brown L) and J5 terminal 2 (blue N).
Note:
The mains voltage will only be seen for a short period of time (about 4 seconds) and the gas service tap must be off in order to maximise the test time.
Measure Mains voltage across J15 connection 2 (brown L) and J5 terminal 2 (blue N).
Note:
The mains voltage will only be seen for a short period of time (about 4 seconds) and the gas service tap must be off in order to maximise the test time.
Isolate as per TOPs P4
and refit as necessary