RESISTANCE SENSOR FLOW

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove the air intake from the fan
Disconnect wires from flow sensor

Measurement:

Measure the resistance across the flow sensor.
The resistance should conform approximately to the table below:

wc greenstar 36 cdi compact j04478 thr flow in situ wires disc.gif

wc 27i system compact case off panel down air intake.gif

Notes:
The thermistor is shown with the gas supply tube and spark generator removed for clarity but the test can be completed with them both in situ.
Click on resistance table to switch between table and graph view.

Temperature Range (°C)	Resistance Range
0°C to 10°C	20.0kΩ - 34.0kΩ
10°C to 20°C	13.0kΩ - 20.0kΩ
20°C to 30°C	8.0kΩ - 13.0kΩ
30°C to 40°C	5.3kΩ - 8.0kΩ
40°C to 50°C	3.5kΩ - 5.3kΩ
50°C to 60°C	2.4kΩ - 3.5kΩ
60°C to 70°C	1.7kΩ - 2.4kΩ
70°C to 80°C	1.2kΩ - 1.7kΩ
80°C to 90°C	900Ω - 1.2kΩ
90°C to 100°C	700Ω - 900Ω