DHW SENSOR

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove plug connection (orange leads) from DHW sensor located on the DHW outlet L/H side of the secondary heat exchanger

Measure the resistance across the exposed terminals of 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.