RESISTANCE FLUE THERMISTOR

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove right hand side panel then remove connector from the flue sensor
(If access is poor it may be easier to remove thermistor from appliance)

Measure the resistance across the exposed sensor terminals.

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.