RESISTANCE HEATING BLOCK THERMISTOR AND HARNESS

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove connector LV1 from the PCB

Measurement:

Measure resistance across between pin 17 (orange) and pin 14 (orange) at the disconnected plug.
Is the resistance measured as expected?

wc greenstar style 8700 j66884 har lv1.gif

Resistances vary with temperature and should conform approximately to the table below:

Temperature Range (°C)	Resistance Range
0°C to 10°C	24.0kΩ - 41.0kΩ
10°C to 20°C	15.0kΩ - 24.0kΩ
20°C to 30°C	9.6kΩ - 15.0kΩ
30°C to 40°C	6.3kΩ - 9.6kΩ
40°C to 50°C	4.3kΩ - 6.3kΩ
50°C to 60°C	2.9kΩ - 4.3kΩ
60°C to 70°C	2.1kΩ - 2.9kΩ
70°C to 80°C	1.5kΩ - 2.1kΩ
80°C to 90°C	1.1kΩ - 1.5kΩ
90°C to 100°C	800Ω - 1.1kΩ

Notes:
1. Connector may differ slightly in appearance but this does not affect the test.
2. Clicking on the resistance table will switch between table and graph view.