RESISTANCE SENSOR TEMP DHW AND HARNESS

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Disconnect connector from X20 on the PCB

Measure resistance across the two green leads at the disconnected connector, and the approximate temperature at the sensors location.

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.