RESISTANCE THERMISTOR AND HARNESS DHW

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Gain access to PCB (use Insulation Mat as required)
Remove connector X3 from the PCB

Measure the resistance between pins 13 and 14 on connector X3.

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.