DHW THERMISTOR

Set Multimeter to Resistance

Isolate Mains Power to appliance as per TOPs P4
Remove the plug connector from the DHW thermistor

Measure the resistance across the exposed terminals of the DHW thermistor.

N.B. Thermistor is located behind gas valve

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.