Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove connector X5 from the PCB
Measurement:
Measure for resistance across pins 7 & 8 of connector X5.
RESISTANCE THERMISTOR RETURN AND HARNESS
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 |
Note:
Clicking on the resistance table will switch between table and graph view.
Clicking on the resistance table will switch between table and graph view.
Isolate as per TOPs P4
and refit as necessary