XSol Diagnostic System

RESISTANCE SENSOR FLUE

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove combustion chamber cover
Disconnect wires to flue sensor

Measurement:

Measure the resistance between the two wires to the flue sensor.
Resistance should confirm approximately to the table below.

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Note: Click on resistance table to switch between table and graph view.

Temperature Range (°C)	Resistance Range
0°C to 10°C	18.0kΩ - 28.0kΩ
10°C to 20°C	12.0kΩ - 18.0kΩ
20°C to 30°C	8.3kΩ - 12.0kΩ
30°C to 40°C	5.7kΩ - 8.3kΩ
40°C to 50°C	4.1kΩ - 5.7kΩ
50°C to 60°C	3.0kΩ - 4.1kΩ
60°C to 70°C	2.2kΩ - 3.0kΩ
70°C to 80°C	1.7kΩ - 2.2kΩ
80°C to 90°C	1.3kΩ - 1.7kΩ
90°C to 100°C	1.0kΩ - 1.3kΩ