Measure the resistance between the terminals.
Measurment:
Water Temperature | Resistance |
30℃ | 0.3Ω |
40℃ | 0.3Ω |
50℃ | 0.3Ω |
60℃ | 0.3Ω |
70℃ | 0.3Ω |
80℃ | 0.3Ω |
85℃ | OL |
Graph:
Below 85℃, the resistance is between 0.3Ω and 0.4Ω. When the temperature reaches to 85℃, the resistance becomes OL.(thermo fan switch is on)
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