Fig. 1: Submerge the end of the temperature sensor in
cold or hot water and check resistance
Remove the timer.
Connect suitable test wires to terminals A, B, and C, respectively.
Connect a test wire with a 30Kresistor to terminal D.
Connect a test wire with a 3.4w lamp to terminal E.
Connect the positive test lead of a voltmeter to terminal D and the negative
lead to the battery negative terminal.
Connect test wires A, D, and E to the positive terminal. Do not connect
Terminal B in this step.
Connect the wire from terminal C to the battery negative terminal.
Check the voltmeter reading. It should read about 6v or above.
Connect the test wire from terminal B to the positive battery terminal.
At the moment the connection is complete, the voltmeter should read less than
1 volt, and the lamp will light. Maintain this connection for 2 minutes. The
voltmeter should read about 8v.
