RESISTANCE DHW SENSOR

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove the leads from the DHW sensor
It is located on the hot water outlet pipe, between the pressure sensor and aqua sensor.

Measure resistance across the sensor.

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.