RESISTANCE DHW SENSOR AND HARNESS

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove connector A5 from the PCB

Measure the resistance across connection 7 (green lead) and connection 9 (green lead) at the disconnected connector A5.

Note: The test corresponds to the numbering on the connector and not that stated on the PCB.

Resistances vary with temperature and should conform approximately to the table below:

Note: Clicking on the resistance table will switch between table and graph view.