Set Appliance State:

Set Multimeter to Resistance Set meter to measure resistance
Isolate Mains Power to appliance as per TOPs P4
Disconnect connector CN2 from the Ignition Control Board

Measurement:

Test 1:Measure resistance across connector CN2 connection L1 (Grey) and connector CN2 connection L2 (White).
Open circuit resistance expected.
Test 2:Measure resistance across connector CN2 connection L1 (Grey) and connector CN2 connection L3 (Brown).
Open circuit resistance expected.
Test 3:Measure resistance across connector CN2 connection L2 (White) and connector CN2 connection L3 (Brown).
Short circuit resistance expected.