Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove spark generator from gas valve
Measurement:
Measure for resistance across the gas valve connections as per table below:
Note.
Ensure a good connection is made as mis-diagnosis will occur.
| Gas Valve Connection | Resistance in kOhms (Approx.) |
| Pins 1 & 5 | 4.1 kOhms |
Note.
Ensure a good connection is made as mis-diagnosis will occur.
