Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect plug from gas valve
Measurement:
Measure the resistance between the outer pins at the gas valve.
Resistance should be approximately 4.5kΩ
Measure the resistance between the
top and middle pins at the gas valve.
Resistance should be greater than 1MΩ (Or O.L.)
Resistance should be approximately 4.5kΩ
Measure the resistance between the
top and middle pins at the gas valve.
Resistance should be greater than 1MΩ (Or O.L.)
Isolate as per TOPs P4
and refit as necessary