APS HARNESS RESISTANCE

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Gain access to PCB
Use Insulation mat as required

Measurement:

Remove and inspect the air pressure
switch wiring harness for signs of
damage and test continuity.

The harness runs from connector X2 - pins 7 and 20 (grey wires) on the PCB to the air pressure switch, which is located at the top, behind the appliance.