Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Remove detection electrode

Measurement:

Thoroughly check the detection electrode for wear, contamination, cracks and damage.
Confirm continuity of electrode (see note 1.)
Expected resistance continuity (zero resistance).
Note.
1. If required clean the electrode to ensure a good connection is made.
2. Refer to ADAPT regarding any gasket replacement requirements.