Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
CH Demand
Gain access to PCB (use Insulation Mat as required)
Link pins 1 and 2 of five pole connector on mounting frame
Selector switch ON
Link pins 1 and 2 of five pole connector on mounting frame
Selector switch ON
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Does the fan continue to run at high speed and commence the ignition sequence, or does it return to slow fan ?
Note:
This test bypasses all external controls
Note:
This test bypasses all external controls
