RESISTANCE SENSOR TEMP PRIMARY

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Disconnect inline connector lead to the flow sensor
(Location of flow sensor is to the right of flow pipe)

Measure resistance across disconnected connector which runs to flow 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.